Open AccessAnalysis of the negative refraction in two-dimensional photonic crystals with wavy structure
Author(s) -
Yiyu Li,
Peifu Gu,
Zhang Jinlong,
Mingyu Li,
Xu Liu,
浙江大学现代光学仪器国家重点实验室,杭州
Publication year - 2006
Publication title -
acta physica sinica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.4918
Subject(s) - negative refraction , optics , refraction , wavelength , physics , photonic crystal , ray , gaussian beam , transmission (telecommunications) , gaussian , materials science , beam (structure) , refractive index , electrical engineering , quantum mechanics , engineering
The negative refraction phenomenon in wavy two-dimensional (2D) photonic crystals (PC) is investigated with the iso-frequency surfaces of PC and incident medium. The finite-difference time-domain method is used to simulate the negative refraction of incident Gaussian beam with different wavelengths and incident angles. When the incident angle is set at 45 degrees, the linear relation exists between the negative refraction angle and the wavelength within the range from 1485 to 1530nm, which is suitable for the superprism effect. In order to increase the transmission when negative refraction happened at large incident angles, interface projection method is employed.
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