Abstract

We present a theoretical and experimental study on the biosensing sensitivity of Au/Co/Au multilayers as transducers of the magneto-optic surface-plasmon-resonance (MOSPR) sensor. We demonstrate that the sensing response of these magneto-plasmonic (MP) transducers is a trade-off between the optical absorption and the magneto-optical activity, observing that the MP multilayer with larger MO effect does not provide the best sensing response. We show that it is possible to design highly-sensitive MP transducers able to largely surpass the limit of detection of the conventional surface-plasmon-resonance (SPR) sensor. This was proved comparing the biosensing performance of both sensors for the label-free detection of short DNA chains hybridization. For this purpose, we used and tested a novel label-free biofunctionalization protocol based on polyelectrolytes, which increases the resistance of MP transducers in aqueous environments.

© 2011 OSA

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  3. L. G. Carrascosa, A. Calle, and L. M. Lechuga, “Label-free detection of DNA mutations by SPR: application to the early detection of inherited breast cancer,” Anal. Bioanal. Chem. 393(4), 1173–1182 (2009).
    [CrossRef]
  4. E. Mauriz, A. Calle, J. J. Manclús, A. Montoya, and L. M. Lechuga, “Multi-analyte SPR immunoassays for environmental biosensing of pesticides,” Anal. Bioanal. Chem. 387(4), 1449–1458 (2007).
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
  27. J. B. González-Díaz, J. M. García-Martín, A. García-Martín, D. Navas, A. Asenjo, and M. Vázquez, “M. Hernández-Vélez, and G. Armelles, “Plasmon-enhanced magneto-optical activity in ferromagnetic membranes,” Appl. Phys. Lett. 94, 263101 (2009).
    [CrossRef]
  28. M. Schubert, “Polarization-dependent optical parameters of arbitrarily anisotropic homogeneous layered systems,” Phys. Rev. B Condens. Matter 53(8), 4265–4274 (1996).
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    [CrossRef]

2010 (5)

Y. Shin, H. M. Kim, Y. Jung, and B. H. Chung, “A new palm-sized surface plasmon resonance (SPR) biosensor based on modulation of a light source by a rotating mirror,” Sens. Actuators B Chem. 150(1), 1–6 (2010).
[CrossRef]

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

D. Regatos, D. Fariña, A. Calle, A. Cebollada, B. Sepúlveda, G. Armelles, and L. M. Lechuga, “Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing,” J. Appl. Phys. 108(5), 054502 (2010).
[CrossRef]

C. Clavero, K. Yang, J. R. Skuza, and R. A. Lukaszew, “Magnetic field modulation of intense surface plasmon polaritons,” Opt. Express 18(8), 7743–7752 (2010).
[CrossRef] [PubMed]

B. Sepúlveda, J. B. González-Díaz, A. García-Martín, L. M. Lechuga, and G. Armelles, “Plasmon-Induced Magneto-Optical Activity in Nanosized Gold Disks,” Phys. Rev. Lett. 104(14), 147401 (2010).
[CrossRef] [PubMed]

2009 (5)

J. B. González-Díaz, J. M. García-Martín, A. García-Martín, D. Navas, A. Asenjo, and M. Vázquez, “M. Hernández-Vélez, and G. Armelles, “Plasmon-enhanced magneto-optical activity in ferromagnetic membranes,” Appl. Phys. Lett. 94, 263101 (2009).
[CrossRef]

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

A. V. Kabashin, S. Patskovsky, and A. N. Grigorenko, “Phase and amplitude sensitivities in surface plasmon resonance bio and chemical sensing,” Opt. Express 17(23), 21191–21204 (2009).
[CrossRef] [PubMed]

J. Treviño, A. Calle, J. M. Rodríguez-Frade, M. Mellado, and L. M. Lechuga, “Determination of human growth hormone in human serum samples by surface plasmon resonance immunoassay,” Talanta 78(3), 1011–1016 (2009).
[CrossRef] [PubMed]

L. G. Carrascosa, A. Calle, and L. M. Lechuga, “Label-free detection of DNA mutations by SPR: application to the early detection of inherited breast cancer,” Anal. Bioanal. Chem. 393(4), 1173–1182 (2009).
[CrossRef]

2008 (2)

S. Patskovsky, M. Maisonneuve, M. Meunier, and A. V. Kabashin, “Mechanical modulation method for ultrasensitive phase measurements in photonics biosensing,” Opt. Express 16(26), 21305–21314 (2008).
[CrossRef] [PubMed]

J. B. González-Díaz, A. García-Martín, J. M. García-Martín, A. Cebollada, G. Armelles, B. Sepúlveda, Y. Alaverdyan, and M. Käll, “Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity,” Small 4(2), 202–205 (2008).
[CrossRef] [PubMed]

2007 (4)

L. G. C. Melo, A. D. Santos, L. M. Alvarez-Prado, and Y. Souche, “Optimization of the TMOKE response using the ATR configuration,” J. Magn. Magn. Mater. 310(2), 947–949 (2007).
[CrossRef]

P. P. Markowicz, W. C. Law, A. Baev, P. N. Prasad, S. Patskovsky, and A. Kabashin, “Phase-sensitive time-modulated surface plasmon resonance polarimetry for wide dynamic range biosensing,” Opt. Express 15(4), 1745–1754 (2007).
[CrossRef] [PubMed]

E. Mauriz, A. Calle, J. J. Manclús, A. Montoya, and L. M. Lechuga, “Multi-analyte SPR immunoassays for environmental biosensing of pesticides,” Anal. Bioanal. Chem. 387(4), 1449–1458 (2007).
[CrossRef]

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

2006 (3)

2005 (1)

J. S. Yuk and K. S. Ha, “Proteomic applications of surface plasmon resonance biosensors: analysis of protein arrays,” Exp. Mol. Med. 37(1), 1–10 (2005).
[PubMed]

2004 (1)

2001 (1)

C. Hermann, V. A. Kosobukin, G. Lampel, J. Peretti, V. I. Safarov, and P. Bertrand, “Surface-enhanced magneto-optics in metallic multilayer films,” Phys. Rev. B 64(23), 235422 (2001).
[CrossRef]

1996 (1)

M. Schubert, “Polarization-dependent optical parameters of arbitrarily anisotropic homogeneous layered systems,” Phys. Rev. B Condens. Matter 53(8), 4265–4274 (1996).
[CrossRef] [PubMed]

1994 (1)

V. I. Safarov, V. A. Kosobukin, C. Hermann, G. Lampel, J. Peretti, and C. Marlière, “Magneto-optical Effects Enhanced by Surface Plasmons in Metallic Multilayer Films,” Phys. Rev. Lett. 73(26), 3584–3587 (1994).
[CrossRef] [PubMed]

1977 (1)

P. E. Ferguson, O. M. Stafsudd, and R. F. Wallis, “Enhancement of the transverse kerr magneto-optic effect by surface magnetoplasma waves,” Physica 89B, 91–94 (1977).

1972 (1)

P. B. Johnson and R. W. Christy, “Optical Constants of the Noble Metals,” Phys. Rev. B 6(12), 4370–4379 (1972).
[CrossRef]

1968 (1)

E. Kretschmann, “Radiative decay on nonradiative surface plasmons excited by light,” Z. Naturforsch. B 23A, 2135 (1968).

Alaverdyan, Y.

J. B. González-Díaz, A. García-Martín, J. M. García-Martín, A. Cebollada, G. Armelles, B. Sepúlveda, Y. Alaverdyan, and M. Käll, “Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity,” Small 4(2), 202–205 (2008).
[CrossRef] [PubMed]

Alvarez-Prado, L. M.

L. G. C. Melo, A. D. Santos, L. M. Alvarez-Prado, and Y. Souche, “Optimization of the TMOKE response using the ATR configuration,” J. Magn. Magn. Mater. 310(2), 947–949 (2007).
[CrossRef]

Armelles, G.

B. Sepúlveda, J. B. González-Díaz, A. García-Martín, L. M. Lechuga, and G. Armelles, “Plasmon-Induced Magneto-Optical Activity in Nanosized Gold Disks,” Phys. Rev. Lett. 104(14), 147401 (2010).
[CrossRef] [PubMed]

D. Regatos, D. Fariña, A. Calle, A. Cebollada, B. Sepúlveda, G. Armelles, and L. M. Lechuga, “Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing,” J. Appl. Phys. 108(5), 054502 (2010).
[CrossRef]

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

J. B. González-Díaz, A. García-Martín, J. M. García-Martín, A. Cebollada, G. Armelles, B. Sepúlveda, Y. Alaverdyan, and M. Käll, “Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity,” Small 4(2), 202–205 (2008).
[CrossRef] [PubMed]

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

B. Sepúlveda, A. Calle, L. M. Lechuga, and G. Armelles, “Highly sensitive detection of biomolecules with the magneto-optic surface-plasmon-resonance sensor,” Opt. Lett. 31(8), 1085–1087 (2006).
[CrossRef] [PubMed]

B. Sepulveda, L. M. Lechuga, and G. Armelles, “Magnetooptic Effects in Surface-Plasmon-Polaritons Slab Waveguides,” J. Lightwave Technol. 24(2), 945–955 (2006).
[CrossRef]

Asenjo, A.

J. B. González-Díaz, J. M. García-Martín, A. García-Martín, D. Navas, A. Asenjo, and M. Vázquez, “M. Hernández-Vélez, and G. Armelles, “Plasmon-enhanced magneto-optical activity in ferromagnetic membranes,” Appl. Phys. Lett. 94, 263101 (2009).
[CrossRef]

Baev, A.

Bergwerff, A. A.

A. A. Bergwerff and F. van Knapen, “Surface plasmon resonance biosensors for detection of pathogenic microorganisms: strategies to secure food and environmental safety,” J. AOAC Int. 89(3), 826–831 (2006).
[PubMed]

Bertrand, P.

C. Hermann, V. A. Kosobukin, G. Lampel, J. Peretti, V. I. Safarov, and P. Bertrand, “Surface-enhanced magneto-optics in metallic multilayer films,” Phys. Rev. B 64(23), 235422 (2001).
[CrossRef]

Bonod, N.

Bratschitsch, R.

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

Calle, A.

D. Regatos, D. Fariña, A. Calle, A. Cebollada, B. Sepúlveda, G. Armelles, and L. M. Lechuga, “Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing,” J. Appl. Phys. 108(5), 054502 (2010).
[CrossRef]

L. G. Carrascosa, A. Calle, and L. M. Lechuga, “Label-free detection of DNA mutations by SPR: application to the early detection of inherited breast cancer,” Anal. Bioanal. Chem. 393(4), 1173–1182 (2009).
[CrossRef]

J. Treviño, A. Calle, J. M. Rodríguez-Frade, M. Mellado, and L. M. Lechuga, “Determination of human growth hormone in human serum samples by surface plasmon resonance immunoassay,” Talanta 78(3), 1011–1016 (2009).
[CrossRef] [PubMed]

E. Mauriz, A. Calle, J. J. Manclús, A. Montoya, and L. M. Lechuga, “Multi-analyte SPR immunoassays for environmental biosensing of pesticides,” Anal. Bioanal. Chem. 387(4), 1449–1458 (2007).
[CrossRef]

B. Sepúlveda, A. Calle, L. M. Lechuga, and G. Armelles, “Highly sensitive detection of biomolecules with the magneto-optic surface-plasmon-resonance sensor,” Opt. Lett. 31(8), 1085–1087 (2006).
[CrossRef] [PubMed]

Carrascosa, L. G.

L. G. Carrascosa, A. Calle, and L. M. Lechuga, “Label-free detection of DNA mutations by SPR: application to the early detection of inherited breast cancer,” Anal. Bioanal. Chem. 393(4), 1173–1182 (2009).
[CrossRef]

Cebollada, A.

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

D. Regatos, D. Fariña, A. Calle, A. Cebollada, B. Sepúlveda, G. Armelles, and L. M. Lechuga, “Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing,” J. Appl. Phys. 108(5), 054502 (2010).
[CrossRef]

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

J. B. González-Díaz, A. García-Martín, J. M. García-Martín, A. Cebollada, G. Armelles, B. Sepúlveda, Y. Alaverdyan, and M. Käll, “Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity,” Small 4(2), 202–205 (2008).
[CrossRef] [PubMed]

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

Christy, R. W.

P. B. Johnson and R. W. Christy, “Optical Constants of the Noble Metals,” Phys. Rev. B 6(12), 4370–4379 (1972).
[CrossRef]

Chung, B. H.

Y. Shin, H. M. Kim, Y. Jung, and B. H. Chung, “A new palm-sized surface plasmon resonance (SPR) biosensor based on modulation of a light source by a rotating mirror,” Sens. Actuators B Chem. 150(1), 1–6 (2010).
[CrossRef]

Clarke, R.

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

Clavero, C.

C. Clavero, K. Yang, J. R. Skuza, and R. A. Lukaszew, “Magnetic field modulation of intense surface plasmon polaritons,” Opt. Express 18(8), 7743–7752 (2010).
[CrossRef] [PubMed]

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

Fariña, D.

D. Regatos, D. Fariña, A. Calle, A. Cebollada, B. Sepúlveda, G. Armelles, and L. M. Lechuga, “Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing,” J. Appl. Phys. 108(5), 054502 (2010).
[CrossRef]

Ferguson, P. E.

P. E. Ferguson, O. M. Stafsudd, and R. F. Wallis, “Enhancement of the transverse kerr magneto-optic effect by surface magnetoplasma waves,” Physica 89B, 91–94 (1977).

Fermento, R.

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

Ferreiro-Vila, E.

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

Garcia-Martin, A.

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

Garcia-Martin, J.

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

Garcia-Martin, J. M.

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

García-Martín, A.

B. Sepúlveda, J. B. González-Díaz, A. García-Martín, L. M. Lechuga, and G. Armelles, “Plasmon-Induced Magneto-Optical Activity in Nanosized Gold Disks,” Phys. Rev. Lett. 104(14), 147401 (2010).
[CrossRef] [PubMed]

J. B. González-Díaz, J. M. García-Martín, A. García-Martín, D. Navas, A. Asenjo, and M. Vázquez, “M. Hernández-Vélez, and G. Armelles, “Plasmon-enhanced magneto-optical activity in ferromagnetic membranes,” Appl. Phys. Lett. 94, 263101 (2009).
[CrossRef]

J. B. González-Díaz, A. García-Martín, J. M. García-Martín, A. Cebollada, G. Armelles, B. Sepúlveda, Y. Alaverdyan, and M. Käll, “Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity,” Small 4(2), 202–205 (2008).
[CrossRef] [PubMed]

García-Martín, J. M.

J. B. González-Díaz, J. M. García-Martín, A. García-Martín, D. Navas, A. Asenjo, and M. Vázquez, “M. Hernández-Vélez, and G. Armelles, “Plasmon-enhanced magneto-optical activity in ferromagnetic membranes,” Appl. Phys. Lett. 94, 263101 (2009).
[CrossRef]

J. B. González-Díaz, A. García-Martín, J. M. García-Martín, A. Cebollada, G. Armelles, B. Sepúlveda, Y. Alaverdyan, and M. Käll, “Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity,” Small 4(2), 202–205 (2008).
[CrossRef] [PubMed]

Gonzalez, M. U.

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

Gonzalez-Diaz, J. B.

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

González-Díaz, J. B.

B. Sepúlveda, J. B. González-Díaz, A. García-Martín, L. M. Lechuga, and G. Armelles, “Plasmon-Induced Magneto-Optical Activity in Nanosized Gold Disks,” Phys. Rev. Lett. 104(14), 147401 (2010).
[CrossRef] [PubMed]

J. B. González-Díaz, J. M. García-Martín, A. García-Martín, D. Navas, A. Asenjo, and M. Vázquez, “M. Hernández-Vélez, and G. Armelles, “Plasmon-enhanced magneto-optical activity in ferromagnetic membranes,” Appl. Phys. Lett. 94, 263101 (2009).
[CrossRef]

J. B. González-Díaz, A. García-Martín, J. M. García-Martín, A. Cebollada, G. Armelles, B. Sepúlveda, Y. Alaverdyan, and M. Käll, “Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity,” Small 4(2), 202–205 (2008).
[CrossRef] [PubMed]

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

Grigorenko, A. N.

Guzatov, D.

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

Ha, K. S.

J. S. Yuk and K. S. Ha, “Proteomic applications of surface plasmon resonance biosensors: analysis of protein arrays,” Exp. Mol. Med. 37(1), 1–10 (2005).
[PubMed]

Hermann, C.

C. Hermann, V. A. Kosobukin, G. Lampel, J. Peretti, V. I. Safarov, and P. Bertrand, “Surface-enhanced magneto-optics in metallic multilayer films,” Phys. Rev. B 64(23), 235422 (2001).
[CrossRef]

V. I. Safarov, V. A. Kosobukin, C. Hermann, G. Lampel, J. Peretti, and C. Marlière, “Magneto-optical Effects Enhanced by Surface Plasmons in Metallic Multilayer Films,” Phys. Rev. Lett. 73(26), 3584–3587 (1994).
[CrossRef] [PubMed]

Johnson, P. B.

P. B. Johnson and R. W. Christy, “Optical Constants of the Noble Metals,” Phys. Rev. B 6(12), 4370–4379 (1972).
[CrossRef]

Jung, Y.

Y. Shin, H. M. Kim, Y. Jung, and B. H. Chung, “A new palm-sized surface plasmon resonance (SPR) biosensor based on modulation of a light source by a rotating mirror,” Sens. Actuators B Chem. 150(1), 1–6 (2010).
[CrossRef]

Kabashin, A.

Kabashin, A. V.

Käll, M.

J. B. González-Díaz, A. García-Martín, J. M. García-Martín, A. Cebollada, G. Armelles, B. Sepúlveda, Y. Alaverdyan, and M. Käll, “Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity,” Small 4(2), 202–205 (2008).
[CrossRef] [PubMed]

Kim, H. M.

Y. Shin, H. M. Kim, Y. Jung, and B. H. Chung, “A new palm-sized surface plasmon resonance (SPR) biosensor based on modulation of a light source by a rotating mirror,” Sens. Actuators B Chem. 150(1), 1–6 (2010).
[CrossRef]

Kosobukin, V. A.

C. Hermann, V. A. Kosobukin, G. Lampel, J. Peretti, V. I. Safarov, and P. Bertrand, “Surface-enhanced magneto-optics in metallic multilayer films,” Phys. Rev. B 64(23), 235422 (2001).
[CrossRef]

V. I. Safarov, V. A. Kosobukin, C. Hermann, G. Lampel, J. Peretti, and C. Marlière, “Magneto-optical Effects Enhanced by Surface Plasmons in Metallic Multilayer Films,” Phys. Rev. Lett. 73(26), 3584–3587 (1994).
[CrossRef] [PubMed]

Kretschmann, E.

E. Kretschmann, “Radiative decay on nonradiative surface plasmons excited by light,” Z. Naturforsch. B 23A, 2135 (1968).

Kumah, D. P.

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

Lampel, G.

C. Hermann, V. A. Kosobukin, G. Lampel, J. Peretti, V. I. Safarov, and P. Bertrand, “Surface-enhanced magneto-optics in metallic multilayer films,” Phys. Rev. B 64(23), 235422 (2001).
[CrossRef]

V. I. Safarov, V. A. Kosobukin, C. Hermann, G. Lampel, J. Peretti, and C. Marlière, “Magneto-optical Effects Enhanced by Surface Plasmons in Metallic Multilayer Films,” Phys. Rev. Lett. 73(26), 3584–3587 (1994).
[CrossRef] [PubMed]

Law, W. C.

Lechuga, L. M.

B. Sepúlveda, J. B. González-Díaz, A. García-Martín, L. M. Lechuga, and G. Armelles, “Plasmon-Induced Magneto-Optical Activity in Nanosized Gold Disks,” Phys. Rev. Lett. 104(14), 147401 (2010).
[CrossRef] [PubMed]

D. Regatos, D. Fariña, A. Calle, A. Cebollada, B. Sepúlveda, G. Armelles, and L. M. Lechuga, “Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing,” J. Appl. Phys. 108(5), 054502 (2010).
[CrossRef]

J. Treviño, A. Calle, J. M. Rodríguez-Frade, M. Mellado, and L. M. Lechuga, “Determination of human growth hormone in human serum samples by surface plasmon resonance immunoassay,” Talanta 78(3), 1011–1016 (2009).
[CrossRef] [PubMed]

L. G. Carrascosa, A. Calle, and L. M. Lechuga, “Label-free detection of DNA mutations by SPR: application to the early detection of inherited breast cancer,” Anal. Bioanal. Chem. 393(4), 1173–1182 (2009).
[CrossRef]

E. Mauriz, A. Calle, J. J. Manclús, A. Montoya, and L. M. Lechuga, “Multi-analyte SPR immunoassays for environmental biosensing of pesticides,” Anal. Bioanal. Chem. 387(4), 1449–1458 (2007).
[CrossRef]

B. Sepúlveda, A. Calle, L. M. Lechuga, and G. Armelles, “Highly sensitive detection of biomolecules with the magneto-optic surface-plasmon-resonance sensor,” Opt. Lett. 31(8), 1085–1087 (2006).
[CrossRef] [PubMed]

B. Sepulveda, L. M. Lechuga, and G. Armelles, “Magnetooptic Effects in Surface-Plasmon-Polaritons Slab Waveguides,” J. Lightwave Technol. 24(2), 945–955 (2006).
[CrossRef]

Leitenstorfer, A.

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

Lukaszew, R. A.

C. Clavero, K. Yang, J. R. Skuza, and R. A. Lukaszew, “Magnetic field modulation of intense surface plasmon polaritons,” Opt. Express 18(8), 7743–7752 (2010).
[CrossRef] [PubMed]

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

Maisonneuve, M.

Manclús, J. J.

E. Mauriz, A. Calle, J. J. Manclús, A. Montoya, and L. M. Lechuga, “Multi-analyte SPR immunoassays for environmental biosensing of pesticides,” Anal. Bioanal. Chem. 387(4), 1449–1458 (2007).
[CrossRef]

Markowicz, P. P.

Marlière, C.

V. I. Safarov, V. A. Kosobukin, C. Hermann, G. Lampel, J. Peretti, and C. Marlière, “Magneto-optical Effects Enhanced by Surface Plasmons in Metallic Multilayer Films,” Phys. Rev. Lett. 73(26), 3584–3587 (1994).
[CrossRef] [PubMed]

Mauriz, E.

E. Mauriz, A. Calle, J. J. Manclús, A. Montoya, and L. M. Lechuga, “Multi-analyte SPR immunoassays for environmental biosensing of pesticides,” Anal. Bioanal. Chem. 387(4), 1449–1458 (2007).
[CrossRef]

Mellado, M.

J. Treviño, A. Calle, J. M. Rodríguez-Frade, M. Mellado, and L. M. Lechuga, “Determination of human growth hormone in human serum samples by surface plasmon resonance immunoassay,” Talanta 78(3), 1011–1016 (2009).
[CrossRef] [PubMed]

Melo, L. G. C.

L. G. C. Melo, A. D. Santos, L. M. Alvarez-Prado, and Y. Souche, “Optimization of the TMOKE response using the ATR configuration,” J. Magn. Magn. Mater. 310(2), 947–949 (2007).
[CrossRef]

Meneses-Rodriguez, D.

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

Meunier, M.

Montoya, A.

E. Mauriz, A. Calle, J. J. Manclús, A. Montoya, and L. M. Lechuga, “Multi-analyte SPR immunoassays for environmental biosensing of pesticides,” Anal. Bioanal. Chem. 387(4), 1449–1458 (2007).
[CrossRef]

Navas, D.

J. B. González-Díaz, J. M. García-Martín, A. García-Martín, D. Navas, A. Asenjo, and M. Vázquez, “M. Hernández-Vélez, and G. Armelles, “Plasmon-enhanced magneto-optical activity in ferromagnetic membranes,” Appl. Phys. Lett. 94, 263101 (2009).
[CrossRef]

Nevière, M.

Patskovsky, S.

Peretti, J.

C. Hermann, V. A. Kosobukin, G. Lampel, J. Peretti, V. I. Safarov, and P. Bertrand, “Surface-enhanced magneto-optics in metallic multilayer films,” Phys. Rev. B 64(23), 235422 (2001).
[CrossRef]

V. I. Safarov, V. A. Kosobukin, C. Hermann, G. Lampel, J. Peretti, and C. Marlière, “Magneto-optical Effects Enhanced by Surface Plasmons in Metallic Multilayer Films,” Phys. Rev. Lett. 73(26), 3584–3587 (1994).
[CrossRef] [PubMed]

Popov, E.

Prasad, P. N.

Regatos, D.

D. Regatos, D. Fariña, A. Calle, A. Cebollada, B. Sepúlveda, G. Armelles, and L. M. Lechuga, “Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing,” J. Appl. Phys. 108(5), 054502 (2010).
[CrossRef]

Reinisch, R.

Rodríguez-Frade, J. M.

J. Treviño, A. Calle, J. M. Rodríguez-Frade, M. Mellado, and L. M. Lechuga, “Determination of human growth hormone in human serum samples by surface plasmon resonance immunoassay,” Talanta 78(3), 1011–1016 (2009).
[CrossRef] [PubMed]

Safarov, V. I.

C. Hermann, V. A. Kosobukin, G. Lampel, J. Peretti, V. I. Safarov, and P. Bertrand, “Surface-enhanced magneto-optics in metallic multilayer films,” Phys. Rev. B 64(23), 235422 (2001).
[CrossRef]

V. I. Safarov, V. A. Kosobukin, C. Hermann, G. Lampel, J. Peretti, and C. Marlière, “Magneto-optical Effects Enhanced by Surface Plasmons in Metallic Multilayer Films,” Phys. Rev. Lett. 73(26), 3584–3587 (1994).
[CrossRef] [PubMed]

Sandoval, E. M.

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

Santos, A. D.

L. G. C. Melo, A. D. Santos, L. M. Alvarez-Prado, and Y. Souche, “Optimization of the TMOKE response using the ATR configuration,” J. Magn. Magn. Mater. 310(2), 947–949 (2007).
[CrossRef]

Schubert, M.

M. Schubert, “Polarization-dependent optical parameters of arbitrarily anisotropic homogeneous layered systems,” Phys. Rev. B Condens. Matter 53(8), 4265–4274 (1996).
[CrossRef] [PubMed]

Sepulveda, B.

Sepúlveda, B.

D. Regatos, D. Fariña, A. Calle, A. Cebollada, B. Sepúlveda, G. Armelles, and L. M. Lechuga, “Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing,” J. Appl. Phys. 108(5), 054502 (2010).
[CrossRef]

B. Sepúlveda, J. B. González-Díaz, A. García-Martín, L. M. Lechuga, and G. Armelles, “Plasmon-Induced Magneto-Optical Activity in Nanosized Gold Disks,” Phys. Rev. Lett. 104(14), 147401 (2010).
[CrossRef] [PubMed]

J. B. González-Díaz, A. García-Martín, J. M. García-Martín, A. Cebollada, G. Armelles, B. Sepúlveda, Y. Alaverdyan, and M. Käll, “Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity,” Small 4(2), 202–205 (2008).
[CrossRef] [PubMed]

B. Sepúlveda, A. Calle, L. M. Lechuga, and G. Armelles, “Highly sensitive detection of biomolecules with the magneto-optic surface-plasmon-resonance sensor,” Opt. Lett. 31(8), 1085–1087 (2006).
[CrossRef] [PubMed]

Shin, Y.

Y. Shin, H. M. Kim, Y. Jung, and B. H. Chung, “A new palm-sized surface plasmon resonance (SPR) biosensor based on modulation of a light source by a rotating mirror,” Sens. Actuators B Chem. 150(1), 1–6 (2010).
[CrossRef]

Skuza, J. R.

C. Clavero, K. Yang, J. R. Skuza, and R. A. Lukaszew, “Magnetic field modulation of intense surface plasmon polaritons,” Opt. Express 18(8), 7743–7752 (2010).
[CrossRef] [PubMed]

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

Souche, Y.

L. G. C. Melo, A. D. Santos, L. M. Alvarez-Prado, and Y. Souche, “Optimization of the TMOKE response using the ATR configuration,” J. Magn. Magn. Mater. 310(2), 947–949 (2007).
[CrossRef]

Stafsudd, O. M.

P. E. Ferguson, O. M. Stafsudd, and R. F. Wallis, “Enhancement of the transverse kerr magneto-optic effect by surface magnetoplasma waves,” Physica 89B, 91–94 (1977).

Temnov, V. V.

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

Thomay, T.

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

Treviño, J.

J. Treviño, A. Calle, J. M. Rodríguez-Frade, M. Mellado, and L. M. Lechuga, “Determination of human growth hormone in human serum samples by surface plasmon resonance immunoassay,” Talanta 78(3), 1011–1016 (2009).
[CrossRef] [PubMed]

van Knapen, F.

A. A. Bergwerff and F. van Knapen, “Surface plasmon resonance biosensors for detection of pathogenic microorganisms: strategies to secure food and environmental safety,” J. AOAC Int. 89(3), 826–831 (2006).
[PubMed]

Vázquez, M.

J. B. González-Díaz, J. M. García-Martín, A. García-Martín, D. Navas, A. Asenjo, and M. Vázquez, “M. Hernández-Vélez, and G. Armelles, “Plasmon-enhanced magneto-optical activity in ferromagnetic membranes,” Appl. Phys. Lett. 94, 263101 (2009).
[CrossRef]

Wallis, R. F.

P. E. Ferguson, O. M. Stafsudd, and R. F. Wallis, “Enhancement of the transverse kerr magneto-optic effect by surface magnetoplasma waves,” Physica 89B, 91–94 (1977).

Woggon, U.

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

Yang, K.

Yuk, J. S.

J. S. Yuk and K. S. Ha, “Proteomic applications of surface plasmon resonance biosensors: analysis of protein arrays,” Exp. Mol. Med. 37(1), 1–10 (2005).
[PubMed]

Anal. Bioanal. Chem. (2)

L. G. Carrascosa, A. Calle, and L. M. Lechuga, “Label-free detection of DNA mutations by SPR: application to the early detection of inherited breast cancer,” Anal. Bioanal. Chem. 393(4), 1173–1182 (2009).
[CrossRef]

E. Mauriz, A. Calle, J. J. Manclús, A. Montoya, and L. M. Lechuga, “Multi-analyte SPR immunoassays for environmental biosensing of pesticides,” Anal. Bioanal. Chem. 387(4), 1449–1458 (2007).
[CrossRef]

Appl. Phys. Lett. (1)

J. B. González-Díaz, J. M. García-Martín, A. García-Martín, D. Navas, A. Asenjo, and M. Vázquez, “M. Hernández-Vélez, and G. Armelles, “Plasmon-enhanced magneto-optical activity in ferromagnetic membranes,” Appl. Phys. Lett. 94, 263101 (2009).
[CrossRef]

Exp. Mol. Med. (1)

J. S. Yuk and K. S. Ha, “Proteomic applications of surface plasmon resonance biosensors: analysis of protein arrays,” Exp. Mol. Med. 37(1), 1–10 (2005).
[PubMed]

J. AOAC Int. (1)

A. A. Bergwerff and F. van Knapen, “Surface plasmon resonance biosensors for detection of pathogenic microorganisms: strategies to secure food and environmental safety,” J. AOAC Int. 89(3), 826–831 (2006).
[PubMed]

J. Appl. Phys. (1)

D. Regatos, D. Fariña, A. Calle, A. Cebollada, B. Sepúlveda, G. Armelles, and L. M. Lechuga, “Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing,” J. Appl. Phys. 108(5), 054502 (2010).
[CrossRef]

J. Lightwave Technol. (1)

J. Magn. Magn. Mater. (1)

L. G. C. Melo, A. D. Santos, L. M. Alvarez-Prado, and Y. Souche, “Optimization of the TMOKE response using the ATR configuration,” J. Magn. Magn. Mater. 310(2), 947–949 (2007).
[CrossRef]

J. Opt. Soc. Am. B (1)

Nat. Photonics (1)

V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch, “Active magneto-plasmonics in hybrid metal–ferromagnet structures,” Nat. Photonics 4(2), 107–111 (2010).
[CrossRef]

Opt. Express (4)

Opt. Lett. (1)

Phys. Rev. B (4)

J. B. González-Díaz, A. Garcia-Martin, G. Armelles, J. M. Garcia-Martin, C. Clavero, A. Cebollada, R. A. Lukaszew, J. R. Skuza, D. P. Kumah, and R. Clarke, “Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures,” Phys. Rev. B 76(15), 153402 (2007).
[CrossRef]

E. Ferreiro-Vila, J. B. Gonzalez-Diaz, R. Fermento, M. U. Gonzalez, A. Garcia-Martin, J. M. Garcia-Martin, A. Cebollada, G. Armelles, D. Meneses-Rodriguez, and E. M. Sandoval, “Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures,” Phys. Rev. B 80(12), 125132 (2009).
[CrossRef]

P. B. Johnson and R. W. Christy, “Optical Constants of the Noble Metals,” Phys. Rev. B 6(12), 4370–4379 (1972).
[CrossRef]

C. Hermann, V. A. Kosobukin, G. Lampel, J. Peretti, V. I. Safarov, and P. Bertrand, “Surface-enhanced magneto-optics in metallic multilayer films,” Phys. Rev. B 64(23), 235422 (2001).
[CrossRef]

Phys. Rev. B Condens. Matter (1)

M. Schubert, “Polarization-dependent optical parameters of arbitrarily anisotropic homogeneous layered systems,” Phys. Rev. B Condens. Matter 53(8), 4265–4274 (1996).
[CrossRef] [PubMed]

Phys. Rev. Lett. (2)

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Physica (1)

P. E. Ferguson, O. M. Stafsudd, and R. F. Wallis, “Enhancement of the transverse kerr magneto-optic effect by surface magnetoplasma waves,” Physica 89B, 91–94 (1977).

Sens. Actuators B Chem. (1)

Y. Shin, H. M. Kim, Y. Jung, and B. H. Chung, “A new palm-sized surface plasmon resonance (SPR) biosensor based on modulation of a light source by a rotating mirror,” Sens. Actuators B Chem. 150(1), 1–6 (2010).
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Small (1)

J. B. González-Díaz, A. García-Martín, J. M. García-Martín, A. Cebollada, G. Armelles, B. Sepúlveda, Y. Alaverdyan, and M. Käll, “Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity,” Small 4(2), 202–205 (2008).
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J. Treviño, A. Calle, J. M. Rodríguez-Frade, M. Mellado, and L. M. Lechuga, “Determination of human growth hormone in human serum samples by surface plasmon resonance immunoassay,” Talanta 78(3), 1011–1016 (2009).
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Figures (7)

Fig. 1
Fig. 1

(color online) (a) Basic principle of the MP effect. (b) SPR and MP angular resonance response of a MP multilayer structure in prism-coupling configuration. (c) Operating principle of the MOSPR biosensor: sensing response ΔS generated in a MOSPR sensor by a refractive index change (Δnd) of the dielectric medium, nd.

Fig. 2
Fig. 2

(color online) (a) Schematic view of the analyzed MP structure in Kretschmann configuration. Contour plots of: (b) the maximum amplitude of the ΔRpp and (c) ηMOSPR as function of the upper gold layer (dAuTop) and cobalt thicknesses (dCo). The value of the gold bottom layer thickness (dAuBottom) was previously optimized to achieve the maximum coupling efficiency of the SPP (see appendix A). The blue line divides the region of bilayer structures (those in which the optimization occurs for dAuBottom = 0) and the region of trilayer structures (where occurs for dAuBottom ≠ 0). Finally, the red numbers of the figure (c) are the combinations of dAuTop-dCo experimentally evaluated in this work.

Fig. 3
Fig. 3

(color online) (a) MO signal variation produced by a refractive-index change of 6·10−4 RIU for No. 3 and No. 6 transducers, evaluated at the resonance angle. (b) Theoretical and experimental ηMOSPR for the fabricated transducers. Experimental and theoretical values of ηMOSPR for: (c) different constant values of dAuTop as a function of dCo and (d) vice versa. Experimental ΔRpp and Rpp angular curves (e) and ΔRpp/Rpp angular curve (f) for the transducers No. 5 (red doted-line) and 9 (blue solid-line).

Fig. 4
Fig. 4

(color online) (a) Angular detection curves of the optimized MP transducer (solid lines) compared to a standard gold transducer of the SPR biosensor (doted line). (b) Schematic of the DNA immobilization protocol. The conditions are detailed in appendix C.

Fig. 5
Fig. 5

(color online) Sensor response of the MOSPR and SPR biosensor to (a) Sa and (b) biotinylated DNA immobilization, and (c) DNA-target hybridization. (d) MP transducer regeneration of the sensing surface by a formamide solution.

Fig. 6
Fig. 6

(color online) (a) Optimal Au bottom thicknesses (which minimized the value of the Rpp at the resonance angle) as function of the upper gold layer (dAuTop) and cobalt thicknesses (dCo) and, (b) the value of the Rpp at the resonance angle of theses optimized structures. The blue line divides the region of bilayer structures (those in which the optimization occurs for dAuBottom = 0) and the region of trilayer structures (where occurs for dAuBottom ≠ 0). Finally, the red numbers are the combinations of dAuTop-dCo experimentally evaluated in this work.

Fig. 7
Fig. 7

(color online) Theoretical ΔRpp and Rpp (a) and ΔRpp/Rpp angular curves (b) for the transducers No. 5 (red doted-line) and 9 (blue solid-line).

Tables (1)

Tables Icon

Table 1 Experimental parameters of the fabricated MP multilayers

Equations (5)

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ΔR pp = R pp ( H ) R pp ( H = 0 )
ΔR pp (H) = R pp θ × Δθ spp (H)
ΔR pp R pp = R pp ( H ) R pp ( H = 0 ) R pp ( H = 0 )
η = S n d = S θ × θ spp n d
η MOSPR = ( ΔR pp ) n d

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