Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Design of a High-Transmission C-Shaped Nano-Aperture in a Perfectly Electric Conductor Film

완전도체 박막에서 고 투과율 C형 나노 개구 설계

  • Published : 2006.06.01
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Abstract

We have designed a high-transmission nano aperture in a perfect electric conductor film with the incident beam of 532 nm wavelength. The aperture basically has a C-shape and is known to produce a bright spot nearby the aperture in small size less than diffraction limit. The bright spot is strongly coupled with the local plasmon excited through the aperture hole. The characteristics of transmission and peak power of the aperture output were calculated using finite differential time domain (FDTD) technique, and the geometry of the aperture was determined to get a maximum transmission and peak power. To find the effect of the surface plasmon induced near by the aperture, we calculated the variations of the transmittance and the beam sizes by changing the size of the input beam irradiated on the aperture.

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References

  1. Bethe, H. A., 'Theory of diffraction by small holes,' Phys. Rev., Vol. 66, No.7, pp.163-182, 1944 https://doi.org/10.1103/PhysRev.66.163
  2. Thio, T., Pellerin, K. M., Linke, R. A., Lezec, H. J. and Ebbesen, T. W., 'Enhanced light transmission through a single subwavelength aperture,' Optics Letters, Vol. 26, No. 24, pp.1972-1974, 2001 https://doi.org/10.1364/OL.26.001972
  3. Lezec, H. J. and Thio, T., 'Diffracted evanescent wave model for enhanced and suppressed optical trarismission through subwavelength hole arrays,' Optics Express, Vol. 12, No. 16, pp. 3629-3651, 2004 https://doi.org/10.1364/OPEX.12.003629
  4. Shi, X., Thornton, R. L. and Hesselink, L., 'A Nanoaperture with 1000X Power Throughput Enhancement for VSAL,' Proc. SPIE, Vol. 4342, pp. 320-327, 2002
  5. Jin, E. X. and Xu, X., 'Finite-Difference TimeDomain Studies on Optical Transmission through Planar Nano-Apertures in a Metal Film,' Jpn. J. Appl. Phys., Vol. 43, No.1, 2004
  6. Sendur, K. and Challener, W., 'Near-field radiation of bow-tie antennas and apertures at optical frequencies,' Journal of Microscopy, Vol. 210, pp. 279-283, 2003 https://doi.org/10.1046/j.1365-2818.2003.01145.x
  7. Commercial FDTD Program - www.optiwave.com
  8. Matteo, J. A., Fromm, D. P., Yuen, Y., Schuck, P. J., Moerner, W. E. and Hesselink, L., 'Spectral analysis of strongly enhanced visible light transmission through single C-shaped nanoapertures,' Appl. Phys. Lett., Vol. 85, No.4, pp. 648-650, 2004 https://doi.org/10.1063/1.1774270
  9. Shi, X. and Hesselink, L., 'Design of a C aperture to achieve (${\lambda}$/10 resolution and resonant transmission,' J. Opt. Soc. Am. B, Vol. 21, No.7, pp. 1305-1317, 2004 https://doi.org/10.1364/JOSAB.21.001305
  10. Xu, T., Wang, J., Sun, L., Xu, J. and Tian, Q., 'Investigaion of the Near-field Distribution at Novel Nanometric Aperture Laser,' IUMRS-ICEM 2002, pp. 502-506, 2002