Abstract

Surface plasmon coupling of a TM polarized free space incident beam by means of the + 1st or the −2nd order of a smooth corrugation grating at a metal surface causes the cancellation of the diffracted −1st order free space beam and a maximum of the 0th order Fresnel reflection whereas the converse occurs midway between these two conditions. This implies that angular tilting of the element or wavelength scanning provokes the switching between the −1st and 0th reflected orders. This plasmon-mediated effect on propagating free-space beams exhibits remarkably low absorption losses.

© 2014 Optical Society of America

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References

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  1. Y. Wang, J. Dostalek, W. Knoll, “Magnetic Nanoparticle-Enhanced Biosensor Based on Grating-Coupled Surface Plasmon Resonance,” Anal. Chem. 83(16), 6202–6207 (2011).
    [CrossRef] [PubMed]
  2. J. Sauvage-Vincent and V. Petiton, “Optical security component having a reflective effect, manufacture of said component, and secured document provided with such a component,” U.S. patent WO2013060817 A1 (Oct. 26, 2012).
  3. MC grating software http://www.mcgrating.com/
  4. L. Li, J. Chandezon, G. Granet, J. P. Plumey, “Rigorous and efficient grating-analysis method made easy for optical engineers,” Appl. Opt. 38(2), 304–313 (1999).
    [CrossRef] [PubMed]
  5. Y. Jourlin, S. Tonchev, A. V. Tishchenko, C. Pedri, C. Veillas, O. Parriaux, A. Last, Y. Lacroute, “Spatially and polarization resolved plasmon mediated transmission through continuous metal films,” Opt. Express 17(14), 12155–12166 (2009).
    [CrossRef] [PubMed]

2011 (1)

Y. Wang, J. Dostalek, W. Knoll, “Magnetic Nanoparticle-Enhanced Biosensor Based on Grating-Coupled Surface Plasmon Resonance,” Anal. Chem. 83(16), 6202–6207 (2011).
[CrossRef] [PubMed]

2009 (1)

1999 (1)

Chandezon, J.

Dostalek, J.

Y. Wang, J. Dostalek, W. Knoll, “Magnetic Nanoparticle-Enhanced Biosensor Based on Grating-Coupled Surface Plasmon Resonance,” Anal. Chem. 83(16), 6202–6207 (2011).
[CrossRef] [PubMed]

Granet, G.

Jourlin, Y.

Knoll, W.

Y. Wang, J. Dostalek, W. Knoll, “Magnetic Nanoparticle-Enhanced Biosensor Based on Grating-Coupled Surface Plasmon Resonance,” Anal. Chem. 83(16), 6202–6207 (2011).
[CrossRef] [PubMed]

Lacroute, Y.

Last, A.

Li, L.

Parriaux, O.

Pedri, C.

Plumey, J. P.

Tishchenko, A. V.

Tonchev, S.

Veillas, C.

Wang, Y.

Y. Wang, J. Dostalek, W. Knoll, “Magnetic Nanoparticle-Enhanced Biosensor Based on Grating-Coupled Surface Plasmon Resonance,” Anal. Chem. 83(16), 6202–6207 (2011).
[CrossRef] [PubMed]

Anal. Chem. (1)

Y. Wang, J. Dostalek, W. Knoll, “Magnetic Nanoparticle-Enhanced Biosensor Based on Grating-Coupled Surface Plasmon Resonance,” Anal. Chem. 83(16), 6202–6207 (2011).
[CrossRef] [PubMed]

Appl. Opt. (1)

Opt. Express (1)

Other (2)

J. Sauvage-Vincent and V. Petiton, “Optical security component having a reflective effect, manufacture of said component, and secured document provided with such a component,” U.S. patent WO2013060817 A1 (Oct. 26, 2012).

MC grating software http://www.mcgrating.com/

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Figures (8)

Fig. 1
Fig. 1

Cross-section of the corrugated metal substrate supporting a plasmon-triggered switching effect. a) Optogeometrical definitions, b) Corresponding representation in the reciprocal space.

Fig. 2
Fig. 2

Angular diffraction spectra (for λ = 633 nm) of a corrugated metal substrate at moderate grating depth of 40 nm. a) 0th (curve A) and −1st (curve B) reflected orders under the condition of expression (1). b) Fresnel reflection in the neighborhood of −1st plasmon coupling (curve A), propagating −1st order (curve B), and balance spectrum (curve C).

Fig. 3
Fig. 3

Alteration of the angular reflection spectra with grating depth d as a parameter: a) d = 90 nm, b) d = 140 nm, c) d = 190 nm, d) d = 240 nm. Curves A, B and C correspond to the reflected 0th and −1st orders and to the balance respectively.

Fig. 4
Fig. 4

Angular spectra of 0th (curve A) and −1st order (curve B) in the highest contrast structure (d = 240 nm) with corresponding icons in the reciprocal space. Curve C: balance spectrum.

Fig. 5
Fig. 5

Wavelength spectra of the 0th order under 16.4°, 22° and 27.8° incidence with corresponding icons in the reciprocal space.

Fig. 6
Fig. 6

AFM scan average of the aluminium 500 nm period, 191 nm depth grating.

Fig. 7
Fig. 7

Measured and simulated 0th order spectra in the neighborhood of the −2nd order plasmon coupling. The −1st order maximum is expected at 643 nm wavelength. Grating depth is 190 nm and the period is 500 nm.

Fig. 8
Fig. 8

Pictures of the plasmon-triggered switching effect in real color. a) TE-polarized reflected spot, b) TE-Polarized −1st diffraction order, c) TM-polarized reflected “blue” spot and d) TM-polarized −1st diffraction order.

Equations (9)

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Λ> λ 1+sinθ
K g = k 0 +1 ( n e ( λ +1 )(sin θ +1 )
K g = k 0 2 ( n e ( λ 2 )(sin θ 2 )/2
K g =2 k 0 L sin θ L
sin θ L =(sin θ +1 +sin θ 2 )/2
sin θ +1 = n e λ Λ andsin θ 2 =2 λ Λ n e
λ +1 =Λ( n e ( λ +1 )sin θ 0 )
λ +1 =Λ( n e ( λ 2 )sin θ 0 )/2
λ L =2Λsin θ 0

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