Abstract
This paper presents a fully experimental and theoretical study on transmission properties of a deep metallic grating with subwavelength slits in THz frequency region by using THz time domain spectroscopy (THz-TDS). The grating exposed to
This paper presents a fully experimental and theoretical study on transmission properties of a deep metallic grating with subwavelength slits in THz frequency region by using THz time domain spectroscopy (THz-TDS). The grating exposed to
T. W. Ebbesen, H. J. Lezec, H. F. Ghaemi, T. Thio, and P. A. Wolff, “Extraordinary optical transmission through sub-wavelenght hole arrays,” Nature, vol. 391, no. 6668, pp. 667–669, 1998.
View at: Publisher Site | Google ScholarW. L. Barnes, A. Dereux, and T. W. Ebbesen, “Surface plasmon subwavelength optics,” Nature, vol. 424, no. 6950, pp. 824–830, 2003.
View at: Publisher Site | Google ScholarJ. A. Porto, F. J. García-Vidal, and J. B. Pendry, “Transmission resonances on metallic gratings with very narrow slits,” Physical Review Letters, vol. 83, no. 14, pp. 2845–2848, 1999.
View at: Publisher Site | Google ScholarQ.-J. Wang, J.-Q. Li, C.-P. Huang, C. Zhang, and Y.-Y. Zhu, “Enhanced optical transmission through metal films with rotation-symmetrical hole arrays,” Applied Physics Letters, vol. 87, no. 9, pp. 1–3, 2005.
View at: Publisher Site | Google ScholarH. E. Went, A. P. Hibbins, J. R. Sambles, C. R. Lawrence, and A. P. Crick, “Selective transmission through very deep zero-order metallic gratings at microwave frequencies,” Applied Physics Letters, vol. 77, no. 18, pp. 2789–2791, 2000.
View at: Publisher Site | Google ScholarD. Qu, D. Grischkowsky, and W. Zhang, “Terahertz transmission properties of thin, subwavelength metallic hole arrays,” Optics Letters, vol. 29, no. 8, pp. 896–898, 2004.
View at: Publisher Site | Google ScholarJ. G. Rivas, C. Schotsch, P. H. Bolivar, and H. Kurz, “Enhanced transmission of THz radiation through subwavelength holes,” Physical Review B, vol. 68, no. 20, Article ID 201306, 4 pages, 2003.
View at: Publisher Site | Google ScholarC. Janke, J. Gómez Rivas, C. Schotsch, L. Beckmann, P. Haring Bolivar, and H. Kurz, “Optimization of enhanced terahertz transmission through arrays of subwavelength apertures,” Physical Review B, vol. 69, no. 20, Article ID 205314, 5 pages, 2004.
View at: Publisher Site | Google ScholarG. Torosyan, C. Rau, B. Pradarutti, and R. Beigang, “Generation and propagation of surface plasmons in periodic metallic structures,” Applied Physics Letters, vol. 85, no. 16, pp. 3372–3374, 2004.
View at: Publisher Site | Google ScholarH. Cao and A. Nahata, “Influence of aperture shape on the transmission properties of a periodic array of subwavelength apertures,” Optics Express, vol. 12, no. 16, pp. 3664–3672, 2004.
View at: Publisher Site | Google ScholarA. K. Azad, J. Dai, and W. Zhang, “Transmission properties of terahertz pulses through subwavelength double split-ring resonators,” Optics Letters, vol. 31, no. 5, pp. 634–636, 2006.
View at: Publisher Site | Google ScholarQ. Xing, S. Li, Z. Tian et al., “Enhanced zero-order transmission of terahertz radiation pulses through very deep metallic gratings with subwavelength slits,” Applied Physics Letters, vol. 89, no. 4, Article ID 041107, 3 pages, 2006.
View at: Publisher Site | Google ScholarL. Lang, Q. Xing, S. Li, F. Mao, L. Chai, and Q. Wang, “Experimental study on terahertz radiation,” Chinese Optics Letters, vol. 2, no. 11, pp. 677–679, 2004.
View at: Google ScholarP. Sheng, R. S. Stepleman, and P. N. Sanda, “Exact eigenfunctions for square-wave gratings: application to diffraction and surface-plasmon calculations,” Physical Review B, vol. 26, no. 6, pp. 2907–2916, 1982.
View at: Publisher Site | Google ScholarF. J. García-Vidal and L. Martín-Moreno, “Transmission and focusing of light in one-dimensional periodically nanostructured metals,” Physical Review B, vol. 66, no. 15, Article ID 155412, 10 pages, 2002.
View at: Publisher Site | Google ScholarW. Wood, “On a remarkable case of uneven distribution of light in a diffraction grating spectrum,” Philosophical Magazine, vol. 4, pp. 396–400, 1902.
View at: Google ScholarL. Rayleigh, “On the dynamical theory of gratings,” Proceedings of the Royal Society of London. Series A, vol. A79, no. 532, pp. 399–416, 1907.
View at: Publisher Site | Google Scholar