Abstract

We design and experimentally demonstrate a focusing plasmonic device consisting of a central slit surrounded by the grooves with the fixed width and depth in Au/Cr metal layers. By modulating the phases of the radiation lights decoupled by the grooves from surface plasmon polaritons waves, the focal length can be controlled in the range of several wavelengths. A micron-focusing device is fabricated by the focused ion beam and the focusing performance is characterized using the scanning near-field optical microscope. The experimental results show a significant focusing effect and have agreement with the theoretical analysis and simulation results. Such a focusing plasmonic device with the predicted focal length has potential practical applications in integrated photonics due to the simplicity of the design and fabrication.

© 2010 OSA

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  1. H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, “Beaming light from a subwavelength aperture,” Science 297(5582), 820–822 (2002).
    [CrossRef] [PubMed]
  2. F. J. Garcia-Vidal, L. Martin-Moreno, H. J. Lezec, and T. W. Ebbesen, “Focusing light with a single subwavelength aperture flanked by surface corrugations,” Appl. Phys. Lett. 83, 4500–4502 (2003).
    [CrossRef]
  3. L. Martín-Moreno, F. J. García-Vidal, H. J. Lezec, A. Degiron, and T. W. Ebbesen, “Theory of highly directional emission from a single subwavelength aperture surrounded by surface corrugations,” Phys. Rev. Lett. 90(16), 167401 (2003).
    [CrossRef] [PubMed]
  4. Z. J. Sun and H. K. Kim, “Refractive transmission of light and beam shaping with metallic nano-optic lenses,” Appl. Phys. Lett. 85(4), 642–644 (2004).
    [CrossRef]
  5. H. Shi, C. Wang, C. Du, X. Luo, X. Dong, and H. Gao, “Beam manipulating by metallic nano-slits with variant widths,” Opt. Express 13(18), 6815–6820 (2005).
    [CrossRef] [PubMed]
  6. L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
    [CrossRef]
  7. D. Z. Lin, C. K. Chang, Y. C. Chen, D. L. Yang, M. W. Lin, J. T. Yeh, J. M. Liu, C. H. Kuan, C. S. Yeh, and C. K. Lee, “Beaming light from a subwavelength metal slit surrounded by dielectric surface gratings,” Opt. Express 14(8), 3503–3511 (2006).
    [CrossRef] [PubMed]
  8. S. Kim, H. Kim, Y. Lim, and B. Lee, “Off-axis directional beaming of optical field diffracted by a single subwavelength metal slit with asymmetric dielectric surface gratings,” Appl. Phys. Lett. 90(5), 51113 (2007).
    [CrossRef]
  9. L. Feng, K. A. Tetz, B. Slutsky, V. Lomakin, and Y. Fainman, “Fourier plasmonics: Diffractive focusing of in-plane surface plasmon polariton waves,” Appl. Phys. Lett. 91(8), 081101 (2007).
    [CrossRef]
  10. J. Zhang and G. P. Wang, “Dual-wavelength light beaming from a metal nanoslit flanked by dielectric gratings,” J. Opt. Soc. Am. B 25(8), 1356–1361 (2008).
    [CrossRef]
  11. H. Kim, J. Park, and B. Lee, “Tunable directional beaming from subwavelength metal slits with metal-dielectric composite surface gratings,” Opt. Lett. 34(17), 2569–2571 (2009).
    [CrossRef] [PubMed]
  12. J. Zhang and G. P. Wang, “Determination of thickness and dielectric constant of thin films by dual-wavelength light beaming effect of a metal nanoslit,” J. Appl. Phys. 106(3), 034305 (2009).
    [CrossRef]
  13. W. B. Chen, D. C. Abeysinghe, R. L. Nelson, and Q. W. Zhan, “Plasmonic lens made of multiple concentric metallic rings under radially polarized illumination,” Nano Lett. 9(12), 4320–4325 (2009).
    [CrossRef] [PubMed]
  14. H. F. Shi, C. L. Du, and X. G. Luo, “Focal length modulation based on a metallic slit surrounded with grooves in curved depths,” Appl. Phys. Lett. 91(9), 093111 (2007).
    [CrossRef]
  15. S. Kim, Y. Lim, H. Kim, J. Park, and B. Lee, “Optical beam focusing by a single subwavelength metal slit surrounded by chirped dielectric surface gratings,” Appl. Phys. Lett. 92(1), 013103 (2008).
    [CrossRef]
  16. B. H. Jia, H. F. Shi, J. F. Li, Y. Q. Fu, C. L. Du, and M. Gu, “Near-field visualization of focal depth modulation by step corrugated plasmonic slits,” Appl. Phys. Lett. 94(15), 151912 (2009).
    [CrossRef]
  17. F. Hao, R. Wang, and J. Wang, “A novel design method of focusing-control device by modulating SPPs scattering,” Plasmonics 5(1), 45–49 (2010).
    [CrossRef]

2010 (1)

F. Hao, R. Wang, and J. Wang, “A novel design method of focusing-control device by modulating SPPs scattering,” Plasmonics 5(1), 45–49 (2010).
[CrossRef]

2009 (4)

B. H. Jia, H. F. Shi, J. F. Li, Y. Q. Fu, C. L. Du, and M. Gu, “Near-field visualization of focal depth modulation by step corrugated plasmonic slits,” Appl. Phys. Lett. 94(15), 151912 (2009).
[CrossRef]

H. Kim, J. Park, and B. Lee, “Tunable directional beaming from subwavelength metal slits with metal-dielectric composite surface gratings,” Opt. Lett. 34(17), 2569–2571 (2009).
[CrossRef] [PubMed]

J. Zhang and G. P. Wang, “Determination of thickness and dielectric constant of thin films by dual-wavelength light beaming effect of a metal nanoslit,” J. Appl. Phys. 106(3), 034305 (2009).
[CrossRef]

W. B. Chen, D. C. Abeysinghe, R. L. Nelson, and Q. W. Zhan, “Plasmonic lens made of multiple concentric metallic rings under radially polarized illumination,” Nano Lett. 9(12), 4320–4325 (2009).
[CrossRef] [PubMed]

2008 (2)

J. Zhang and G. P. Wang, “Dual-wavelength light beaming from a metal nanoslit flanked by dielectric gratings,” J. Opt. Soc. Am. B 25(8), 1356–1361 (2008).
[CrossRef]

S. Kim, Y. Lim, H. Kim, J. Park, and B. Lee, “Optical beam focusing by a single subwavelength metal slit surrounded by chirped dielectric surface gratings,” Appl. Phys. Lett. 92(1), 013103 (2008).
[CrossRef]

2007 (3)

H. F. Shi, C. L. Du, and X. G. Luo, “Focal length modulation based on a metallic slit surrounded with grooves in curved depths,” Appl. Phys. Lett. 91(9), 093111 (2007).
[CrossRef]

S. Kim, H. Kim, Y. Lim, and B. Lee, “Off-axis directional beaming of optical field diffracted by a single subwavelength metal slit with asymmetric dielectric surface gratings,” Appl. Phys. Lett. 90(5), 51113 (2007).
[CrossRef]

L. Feng, K. A. Tetz, B. Slutsky, V. Lomakin, and Y. Fainman, “Fourier plasmonics: Diffractive focusing of in-plane surface plasmon polariton waves,” Appl. Phys. Lett. 91(8), 081101 (2007).
[CrossRef]

2006 (1)

2005 (2)

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

H. Shi, C. Wang, C. Du, X. Luo, X. Dong, and H. Gao, “Beam manipulating by metallic nano-slits with variant widths,” Opt. Express 13(18), 6815–6820 (2005).
[CrossRef] [PubMed]

2004 (1)

Z. J. Sun and H. K. Kim, “Refractive transmission of light and beam shaping with metallic nano-optic lenses,” Appl. Phys. Lett. 85(4), 642–644 (2004).
[CrossRef]

2003 (2)

F. J. Garcia-Vidal, L. Martin-Moreno, H. J. Lezec, and T. W. Ebbesen, “Focusing light with a single subwavelength aperture flanked by surface corrugations,” Appl. Phys. Lett. 83, 4500–4502 (2003).
[CrossRef]

L. Martín-Moreno, F. J. García-Vidal, H. J. Lezec, A. Degiron, and T. W. Ebbesen, “Theory of highly directional emission from a single subwavelength aperture surrounded by surface corrugations,” Phys. Rev. Lett. 90(16), 167401 (2003).
[CrossRef] [PubMed]

2002 (1)

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, “Beaming light from a subwavelength aperture,” Science 297(5582), 820–822 (2002).
[CrossRef] [PubMed]

Abeysinghe, D. C.

W. B. Chen, D. C. Abeysinghe, R. L. Nelson, and Q. W. Zhan, “Plasmonic lens made of multiple concentric metallic rings under radially polarized illumination,” Nano Lett. 9(12), 4320–4325 (2009).
[CrossRef] [PubMed]

Chang, C. K.

Chang, Y. C.

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Chen, W. B.

W. B. Chen, D. C. Abeysinghe, R. L. Nelson, and Q. W. Zhan, “Plasmonic lens made of multiple concentric metallic rings under radially polarized illumination,” Nano Lett. 9(12), 4320–4325 (2009).
[CrossRef] [PubMed]

Chen, Y. C.

D. Z. Lin, C. K. Chang, Y. C. Chen, D. L. Yang, M. W. Lin, J. T. Yeh, J. M. Liu, C. H. Kuan, C. S. Yeh, and C. K. Lee, “Beaming light from a subwavelength metal slit surrounded by dielectric surface gratings,” Opt. Express 14(8), 3503–3511 (2006).
[CrossRef] [PubMed]

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Degiron, A.

L. Martín-Moreno, F. J. García-Vidal, H. J. Lezec, A. Degiron, and T. W. Ebbesen, “Theory of highly directional emission from a single subwavelength aperture surrounded by surface corrugations,” Phys. Rev. Lett. 90(16), 167401 (2003).
[CrossRef] [PubMed]

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, “Beaming light from a subwavelength aperture,” Science 297(5582), 820–822 (2002).
[CrossRef] [PubMed]

Devaux, E.

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, “Beaming light from a subwavelength aperture,” Science 297(5582), 820–822 (2002).
[CrossRef] [PubMed]

Dong, X.

Du, C.

Du, C. L.

B. H. Jia, H. F. Shi, J. F. Li, Y. Q. Fu, C. L. Du, and M. Gu, “Near-field visualization of focal depth modulation by step corrugated plasmonic slits,” Appl. Phys. Lett. 94(15), 151912 (2009).
[CrossRef]

H. F. Shi, C. L. Du, and X. G. Luo, “Focal length modulation based on a metallic slit surrounded with grooves in curved depths,” Appl. Phys. Lett. 91(9), 093111 (2007).
[CrossRef]

Ebbesen, T. W.

L. Martín-Moreno, F. J. García-Vidal, H. J. Lezec, A. Degiron, and T. W. Ebbesen, “Theory of highly directional emission from a single subwavelength aperture surrounded by surface corrugations,” Phys. Rev. Lett. 90(16), 167401 (2003).
[CrossRef] [PubMed]

F. J. Garcia-Vidal, L. Martin-Moreno, H. J. Lezec, and T. W. Ebbesen, “Focusing light with a single subwavelength aperture flanked by surface corrugations,” Appl. Phys. Lett. 83, 4500–4502 (2003).
[CrossRef]

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, “Beaming light from a subwavelength aperture,” Science 297(5582), 820–822 (2002).
[CrossRef] [PubMed]

Fainman, Y.

L. Feng, K. A. Tetz, B. Slutsky, V. Lomakin, and Y. Fainman, “Fourier plasmonics: Diffractive focusing of in-plane surface plasmon polariton waves,” Appl. Phys. Lett. 91(8), 081101 (2007).
[CrossRef]

Feng, L.

L. Feng, K. A. Tetz, B. Slutsky, V. Lomakin, and Y. Fainman, “Fourier plasmonics: Diffractive focusing of in-plane surface plasmon polariton waves,” Appl. Phys. Lett. 91(8), 081101 (2007).
[CrossRef]

Fu, Y. Q.

B. H. Jia, H. F. Shi, J. F. Li, Y. Q. Fu, C. L. Du, and M. Gu, “Near-field visualization of focal depth modulation by step corrugated plasmonic slits,” Appl. Phys. Lett. 94(15), 151912 (2009).
[CrossRef]

Gao, H.

Garcia-Vidal, F. J.

F. J. Garcia-Vidal, L. Martin-Moreno, H. J. Lezec, and T. W. Ebbesen, “Focusing light with a single subwavelength aperture flanked by surface corrugations,” Appl. Phys. Lett. 83, 4500–4502 (2003).
[CrossRef]

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, “Beaming light from a subwavelength aperture,” Science 297(5582), 820–822 (2002).
[CrossRef] [PubMed]

García-Vidal, F. J.

L. Martín-Moreno, F. J. García-Vidal, H. J. Lezec, A. Degiron, and T. W. Ebbesen, “Theory of highly directional emission from a single subwavelength aperture surrounded by surface corrugations,” Phys. Rev. Lett. 90(16), 167401 (2003).
[CrossRef] [PubMed]

Gu, M.

B. H. Jia, H. F. Shi, J. F. Li, Y. Q. Fu, C. L. Du, and M. Gu, “Near-field visualization of focal depth modulation by step corrugated plasmonic slits,” Appl. Phys. Lett. 94(15), 151912 (2009).
[CrossRef]

Hao, F.

F. Hao, R. Wang, and J. Wang, “A novel design method of focusing-control device by modulating SPPs scattering,” Plasmonics 5(1), 45–49 (2010).
[CrossRef]

Huang, K. T.

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Jia, B. H.

B. H. Jia, H. F. Shi, J. F. Li, Y. Q. Fu, C. L. Du, and M. Gu, “Near-field visualization of focal depth modulation by step corrugated plasmonic slits,” Appl. Phys. Lett. 94(15), 151912 (2009).
[CrossRef]

Kim, H.

H. Kim, J. Park, and B. Lee, “Tunable directional beaming from subwavelength metal slits with metal-dielectric composite surface gratings,” Opt. Lett. 34(17), 2569–2571 (2009).
[CrossRef] [PubMed]

S. Kim, Y. Lim, H. Kim, J. Park, and B. Lee, “Optical beam focusing by a single subwavelength metal slit surrounded by chirped dielectric surface gratings,” Appl. Phys. Lett. 92(1), 013103 (2008).
[CrossRef]

S. Kim, H. Kim, Y. Lim, and B. Lee, “Off-axis directional beaming of optical field diffracted by a single subwavelength metal slit with asymmetric dielectric surface gratings,” Appl. Phys. Lett. 90(5), 51113 (2007).
[CrossRef]

Kim, H. K.

Z. J. Sun and H. K. Kim, “Refractive transmission of light and beam shaping with metallic nano-optic lenses,” Appl. Phys. Lett. 85(4), 642–644 (2004).
[CrossRef]

Kim, S.

S. Kim, Y. Lim, H. Kim, J. Park, and B. Lee, “Optical beam focusing by a single subwavelength metal slit surrounded by chirped dielectric surface gratings,” Appl. Phys. Lett. 92(1), 013103 (2008).
[CrossRef]

S. Kim, H. Kim, Y. Lim, and B. Lee, “Off-axis directional beaming of optical field diffracted by a single subwavelength metal slit with asymmetric dielectric surface gratings,” Appl. Phys. Lett. 90(5), 51113 (2007).
[CrossRef]

Kuan, C. H.

Lee, B.

H. Kim, J. Park, and B. Lee, “Tunable directional beaming from subwavelength metal slits with metal-dielectric composite surface gratings,” Opt. Lett. 34(17), 2569–2571 (2009).
[CrossRef] [PubMed]

S. Kim, Y. Lim, H. Kim, J. Park, and B. Lee, “Optical beam focusing by a single subwavelength metal slit surrounded by chirped dielectric surface gratings,” Appl. Phys. Lett. 92(1), 013103 (2008).
[CrossRef]

S. Kim, H. Kim, Y. Lim, and B. Lee, “Off-axis directional beaming of optical field diffracted by a single subwavelength metal slit with asymmetric dielectric surface gratings,” Appl. Phys. Lett. 90(5), 51113 (2007).
[CrossRef]

Lee, C. K.

D. Z. Lin, C. K. Chang, Y. C. Chen, D. L. Yang, M. W. Lin, J. T. Yeh, J. M. Liu, C. H. Kuan, C. S. Yeh, and C. K. Lee, “Beaming light from a subwavelength metal slit surrounded by dielectric surface gratings,” Opt. Express 14(8), 3503–3511 (2006).
[CrossRef] [PubMed]

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Lezec, H. J.

L. Martín-Moreno, F. J. García-Vidal, H. J. Lezec, A. Degiron, and T. W. Ebbesen, “Theory of highly directional emission from a single subwavelength aperture surrounded by surface corrugations,” Phys. Rev. Lett. 90(16), 167401 (2003).
[CrossRef] [PubMed]

F. J. Garcia-Vidal, L. Martin-Moreno, H. J. Lezec, and T. W. Ebbesen, “Focusing light with a single subwavelength aperture flanked by surface corrugations,” Appl. Phys. Lett. 83, 4500–4502 (2003).
[CrossRef]

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, “Beaming light from a subwavelength aperture,” Science 297(5582), 820–822 (2002).
[CrossRef] [PubMed]

Li, J. F.

B. H. Jia, H. F. Shi, J. F. Li, Y. Q. Fu, C. L. Du, and M. Gu, “Near-field visualization of focal depth modulation by step corrugated plasmonic slits,” Appl. Phys. Lett. 94(15), 151912 (2009).
[CrossRef]

Liaw, J. W.

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Lim, Y.

S. Kim, Y. Lim, H. Kim, J. Park, and B. Lee, “Optical beam focusing by a single subwavelength metal slit surrounded by chirped dielectric surface gratings,” Appl. Phys. Lett. 92(1), 013103 (2008).
[CrossRef]

S. Kim, H. Kim, Y. Lim, and B. Lee, “Off-axis directional beaming of optical field diffracted by a single subwavelength metal slit with asymmetric dielectric surface gratings,” Appl. Phys. Lett. 90(5), 51113 (2007).
[CrossRef]

Lin, D. Z.

D. Z. Lin, C. K. Chang, Y. C. Chen, D. L. Yang, M. W. Lin, J. T. Yeh, J. M. Liu, C. H. Kuan, C. S. Yeh, and C. K. Lee, “Beaming light from a subwavelength metal slit surrounded by dielectric surface gratings,” Opt. Express 14(8), 3503–3511 (2006).
[CrossRef] [PubMed]

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Lin, M. W.

Linke, R. A.

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, “Beaming light from a subwavelength aperture,” Science 297(5582), 820–822 (2002).
[CrossRef] [PubMed]

Liu, J. M.

D. Z. Lin, C. K. Chang, Y. C. Chen, D. L. Yang, M. W. Lin, J. T. Yeh, J. M. Liu, C. H. Kuan, C. S. Yeh, and C. K. Lee, “Beaming light from a subwavelength metal slit surrounded by dielectric surface gratings,” Opt. Express 14(8), 3503–3511 (2006).
[CrossRef] [PubMed]

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Lomakin, V.

L. Feng, K. A. Tetz, B. Slutsky, V. Lomakin, and Y. Fainman, “Fourier plasmonics: Diffractive focusing of in-plane surface plasmon polariton waves,” Appl. Phys. Lett. 91(8), 081101 (2007).
[CrossRef]

Luo, X.

Luo, X. G.

H. F. Shi, C. L. Du, and X. G. Luo, “Focal length modulation based on a metallic slit surrounded with grooves in curved depths,” Appl. Phys. Lett. 91(9), 093111 (2007).
[CrossRef]

Martin-Moreno, L.

F. J. Garcia-Vidal, L. Martin-Moreno, H. J. Lezec, and T. W. Ebbesen, “Focusing light with a single subwavelength aperture flanked by surface corrugations,” Appl. Phys. Lett. 83, 4500–4502 (2003).
[CrossRef]

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, “Beaming light from a subwavelength aperture,” Science 297(5582), 820–822 (2002).
[CrossRef] [PubMed]

Martín-Moreno, L.

L. Martín-Moreno, F. J. García-Vidal, H. J. Lezec, A. Degiron, and T. W. Ebbesen, “Theory of highly directional emission from a single subwavelength aperture surrounded by surface corrugations,” Phys. Rev. Lett. 90(16), 167401 (2003).
[CrossRef] [PubMed]

Nelson, R. L.

W. B. Chen, D. C. Abeysinghe, R. L. Nelson, and Q. W. Zhan, “Plasmonic lens made of multiple concentric metallic rings under radially polarized illumination,” Nano Lett. 9(12), 4320–4325 (2009).
[CrossRef] [PubMed]

Park, J.

H. Kim, J. Park, and B. Lee, “Tunable directional beaming from subwavelength metal slits with metal-dielectric composite surface gratings,” Opt. Lett. 34(17), 2569–2571 (2009).
[CrossRef] [PubMed]

S. Kim, Y. Lim, H. Kim, J. Park, and B. Lee, “Optical beam focusing by a single subwavelength metal slit surrounded by chirped dielectric surface gratings,” Appl. Phys. Lett. 92(1), 013103 (2008).
[CrossRef]

Shi, H.

Shi, H. F.

B. H. Jia, H. F. Shi, J. F. Li, Y. Q. Fu, C. L. Du, and M. Gu, “Near-field visualization of focal depth modulation by step corrugated plasmonic slits,” Appl. Phys. Lett. 94(15), 151912 (2009).
[CrossRef]

H. F. Shi, C. L. Du, and X. G. Luo, “Focal length modulation based on a metallic slit surrounded with grooves in curved depths,” Appl. Phys. Lett. 91(9), 093111 (2007).
[CrossRef]

Slutsky, B.

L. Feng, K. A. Tetz, B. Slutsky, V. Lomakin, and Y. Fainman, “Fourier plasmonics: Diffractive focusing of in-plane surface plasmon polariton waves,” Appl. Phys. Lett. 91(8), 081101 (2007).
[CrossRef]

Sun, Z. J.

Z. J. Sun and H. K. Kim, “Refractive transmission of light and beam shaping with metallic nano-optic lenses,” Appl. Phys. Lett. 85(4), 642–644 (2004).
[CrossRef]

Tetz, K. A.

L. Feng, K. A. Tetz, B. Slutsky, V. Lomakin, and Y. Fainman, “Fourier plasmonics: Diffractive focusing of in-plane surface plasmon polariton waves,” Appl. Phys. Lett. 91(8), 081101 (2007).
[CrossRef]

Wang, C.

Wang, G. P.

J. Zhang and G. P. Wang, “Determination of thickness and dielectric constant of thin films by dual-wavelength light beaming effect of a metal nanoslit,” J. Appl. Phys. 106(3), 034305 (2009).
[CrossRef]

J. Zhang and G. P. Wang, “Dual-wavelength light beaming from a metal nanoslit flanked by dielectric gratings,” J. Opt. Soc. Am. B 25(8), 1356–1361 (2008).
[CrossRef]

Wang, J.

F. Hao, R. Wang, and J. Wang, “A novel design method of focusing-control device by modulating SPPs scattering,” Plasmonics 5(1), 45–49 (2010).
[CrossRef]

Wang, R.

F. Hao, R. Wang, and J. Wang, “A novel design method of focusing-control device by modulating SPPs scattering,” Plasmonics 5(1), 45–49 (2010).
[CrossRef]

Yang, D. L.

Yeh, C. S.

D. Z. Lin, C. K. Chang, Y. C. Chen, D. L. Yang, M. W. Lin, J. T. Yeh, J. M. Liu, C. H. Kuan, C. S. Yeh, and C. K. Lee, “Beaming light from a subwavelength metal slit surrounded by dielectric surface gratings,” Opt. Express 14(8), 3503–3511 (2006).
[CrossRef] [PubMed]

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Yeh, J. T.

D. Z. Lin, C. K. Chang, Y. C. Chen, D. L. Yang, M. W. Lin, J. T. Yeh, J. M. Liu, C. H. Kuan, C. S. Yeh, and C. K. Lee, “Beaming light from a subwavelength metal slit surrounded by dielectric surface gratings,” Opt. Express 14(8), 3503–3511 (2006).
[CrossRef] [PubMed]

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Yu, L. B.

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Zhan, Q. W.

W. B. Chen, D. C. Abeysinghe, R. L. Nelson, and Q. W. Zhan, “Plasmonic lens made of multiple concentric metallic rings under radially polarized illumination,” Nano Lett. 9(12), 4320–4325 (2009).
[CrossRef] [PubMed]

Zhang, J.

J. Zhang and G. P. Wang, “Determination of thickness and dielectric constant of thin films by dual-wavelength light beaming effect of a metal nanoslit,” J. Appl. Phys. 106(3), 034305 (2009).
[CrossRef]

J. Zhang and G. P. Wang, “Dual-wavelength light beaming from a metal nanoslit flanked by dielectric gratings,” J. Opt. Soc. Am. B 25(8), 1356–1361 (2008).
[CrossRef]

Appl. Phys. Lett. (7)

Z. J. Sun and H. K. Kim, “Refractive transmission of light and beam shaping with metallic nano-optic lenses,” Appl. Phys. Lett. 85(4), 642–644 (2004).
[CrossRef]

S. Kim, H. Kim, Y. Lim, and B. Lee, “Off-axis directional beaming of optical field diffracted by a single subwavelength metal slit with asymmetric dielectric surface gratings,” Appl. Phys. Lett. 90(5), 51113 (2007).
[CrossRef]

L. Feng, K. A. Tetz, B. Slutsky, V. Lomakin, and Y. Fainman, “Fourier plasmonics: Diffractive focusing of in-plane surface plasmon polariton waves,” Appl. Phys. Lett. 91(8), 081101 (2007).
[CrossRef]

H. F. Shi, C. L. Du, and X. G. Luo, “Focal length modulation based on a metallic slit surrounded with grooves in curved depths,” Appl. Phys. Lett. 91(9), 093111 (2007).
[CrossRef]

S. Kim, Y. Lim, H. Kim, J. Park, and B. Lee, “Optical beam focusing by a single subwavelength metal slit surrounded by chirped dielectric surface gratings,” Appl. Phys. Lett. 92(1), 013103 (2008).
[CrossRef]

B. H. Jia, H. F. Shi, J. F. Li, Y. Q. Fu, C. L. Du, and M. Gu, “Near-field visualization of focal depth modulation by step corrugated plasmonic slits,” Appl. Phys. Lett. 94(15), 151912 (2009).
[CrossRef]

F. J. Garcia-Vidal, L. Martin-Moreno, H. J. Lezec, and T. W. Ebbesen, “Focusing light with a single subwavelength aperture flanked by surface corrugations,” Appl. Phys. Lett. 83, 4500–4502 (2003).
[CrossRef]

J. Appl. Phys. (1)

J. Zhang and G. P. Wang, “Determination of thickness and dielectric constant of thin films by dual-wavelength light beaming effect of a metal nanoslit,” J. Appl. Phys. 106(3), 034305 (2009).
[CrossRef]

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

Nano Lett. (1)

W. B. Chen, D. C. Abeysinghe, R. L. Nelson, and Q. W. Zhan, “Plasmonic lens made of multiple concentric metallic rings under radially polarized illumination,” Nano Lett. 9(12), 4320–4325 (2009).
[CrossRef] [PubMed]

Opt. Express (2)

Opt. Lett. (1)

Phys. Rev. B (1)

L. B. Yu, D. Z. Lin, Y. C. Chen, Y. C. Chang, K. T. Huang, J. W. Liaw, J. T. Yeh, J. M. Liu, C. S. Yeh, and C. K. Lee, “Physical origin of directional beaming emitted from a subwavelength slit,” Phys. Rev. B 71(4), 041405 (2005).
[CrossRef]

Phys. Rev. Lett. (1)

L. Martín-Moreno, F. J. García-Vidal, H. J. Lezec, A. Degiron, and T. W. Ebbesen, “Theory of highly directional emission from a single subwavelength aperture surrounded by surface corrugations,” Phys. Rev. Lett. 90(16), 167401 (2003).
[CrossRef] [PubMed]

Plasmonics (1)

F. Hao, R. Wang, and J. Wang, “A novel design method of focusing-control device by modulating SPPs scattering,” Plasmonics 5(1), 45–49 (2010).
[CrossRef]

Science (1)

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, “Beaming light from a subwavelength aperture,” Science 297(5582), 820–822 (2002).
[CrossRef] [PubMed]

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Figures (6)

Fig. 1
Fig. 1

The schematic diagram of the plasmonic device.

Fig. 2
Fig. 2

(a) The dependence of the phase difference on the groove position and (b) the linear fit

Fig. 3
Fig. 3

The electric field intensity distribution of the transmitted lights through the plasmonic device.

Fig. 4
Fig. 4

The SEM image of a micron-focusing plasmonic device with a focal length of 1.8 μm.

Fig. 5
Fig. 5

The intensity distribution of the transmitted lights at the horizontal planes with the distances of (a) z=0.5 μm, (b) z=1.6 μm, (c) z=2.5 μm, and (d) z=3.5 μm away from the device surface. (e) the intensity distribution along the solid line in Fig. 5 (b).

Fig. 6
Fig. 6

Intensity distribution along the optical axis of the plasmonic device.

Equations (2)

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2 π λ ( f 2 + x 2 ) 1 / 2 f 2 π λ + φ x φ o = 2 m π , m = 0 , ± 1 , ± 2 , ± 3... ,
φ x φ o = 0.0106 x 3.34.

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