Investigation on Two-Dimensional Photonic Crystal Self-Collimation Splitting Sensor

A self-collimation splitting sensor truncated in a two-dimensional (2D) photonic crystal has been proposed and demonstrated theoretically. Intensity of transmitted light and reflected light, which varies with the width of the splitter, is detected at two output ports. Calculation results validated b...

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Bibliographic Details
Published in:Key engineering materials 2010-01, Vol.428-429, p.367-371
Main Authors: Lin, Fu Zhong, Wang, Yu Fei, Zhang, Jian Feng, Chen, Xi Yao, Qiu, Hui Ye, Liang, Xiong, Lai, Guo Zhong, Su, Yu Xia
Format: Article
Language:English
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Summary:A self-collimation splitting sensor truncated in a two-dimensional (2D) photonic crystal has been proposed and demonstrated theoretically. Intensity of transmitted light and reflected light, which varies with the width of the splitter, is detected at two output ports. Calculation results validated by the 2D finite-difference time-domain technique show that with the increase of width, the transmittivity decreases while the reflectivity increases and their summation decreases. Considering the trade-off between the sensitivity of the optical detector and the loss of power, including the difficulty of fabrication, the width of 0.4a is meet for the sensor. The simulated relative intensity monotonously increases from 1.63 to 2.94 nonlinearly.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.428-429.367