The correlation between single-slit and inter-slit effects in a subwavelength metal double-slit device

Xiao-Lan Zhong; Yun-Song Zhou; Huai-Yu Wang; Fu-He Wang

doi:10.1117/12.871671

4 November 2010 The correlation between single-slit and inter-slit effects in a subwavelength metal double-slit device

Xiao-Lan Zhong, Yun-Song Zhou, Huai-Yu Wang, Fu-He Wang

Proceedings Volume 7848, Holography, Diffractive Optics, and Applications IV; 784804 (2010) https://doi.org/10.1117/12.871671
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

The extraordinary optical transmission (EOT) through a subwavelength metal double-slit structure is calculated to study in detail the correlation between the single-slit and inter-slit effects on the transmissivity. A transmissivity formula is put down which retrieves the numerical results from the finite-difference time-domain simulation method. After some reasonable approximations made, the formula is expressed as the product of two periodic functions, determined by the length of a single slit and inter-slit distance, respectively. This simplified form shows that the interplay between the single-slit and inter-slit effects is almost negligible.

Citation Download Citation

Xiao-Lan Zhong, Yun-Song Zhou, Huai-Yu Wang, and Fu-He Wang "The correlation between single-slit and inter-slit effects in a subwavelength metal double-slit device", Proc. SPIE 7848, Holography, Diffractive Optics, and Applications IV, 784804 (4 November 2010); https://doi.org/10.1117/12.871671

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