Title :
Study on resonant cavity enhanced photodetector using subwavelength grating
Author :
Shang, Yufeng ; Yongqing Huang ; Duan, Xiaofeng ; Ye, Xian ; Hui Huang ; Cai, Shiwei ; Wang, Qi ; Ren, Xiaomin
Author_Institution :
Key Lab. of Inf. Photonics & Opt. Commun. Minist. of Educ., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Sub-wavelength gratings are used in the new photodetector in this paper. The detectivity is enhanced by excitation of surface plasma waves (SPW) using a Metal Aperture Arrays grating. Sub-wavelength dielectric grating is used to replace the top Bottom Distributed Bragg Reflectors(DBR).
Keywords :
cavity resonators; dielectric materials; diffraction gratings; gallium arsenide; indium compounds; optical arrays; photodetectors; surface plasmon resonance; In0.53Ga0.47As-In0.53Ga0.47As-In0.72GaAs0.6P0.4; bottom distributed Bragg reflectors; metal aperture arrays grating; resonant cavity enhanced photodetector; subwavelength dielectric grating; surface plasma waves; Dielectrics; Gratings; Optical films; Optical reflection; Optical surface waves; Optimized production technology; Plasmons; Subwavelength Grating; photodetector; surface plasmons;
Conference_Titel :
Advances in Optoelectronics and Micro/Nano-Optics (AOM), 2010 OSA-IEEE-COS
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-8393-8
Electronic_ISBN :
978-1-4244-8392-1
DOI :
10.1109/AOM.2010.5713565
