Title: Selecting detection wavelength of resonant cavity-enhanced photodetectors by guided-mode resonance reflectors
Authors: Lai, Kuo-Wei
Lee, Yi-Shan
Fu, Ying-Jhe
Lin, Sheng-Di
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
Issue Date: 13-Feb-2012
Abstract: We propose and demonstrate a novel device structure of resonant cavity-enhanced photodetector (RCE-PD). The new RCE-PD structure consists of a bottom distributed Bragg reflector (DBR), a cavity with InGaAs multiple quantum wells (MQWs) for light absorption and a top mirror of sub-wavelength grating. By changing the fill factor of the 2-D grating, the effective cavity length of RCE-PDs can be varied so the resonant wavelength can be selected post growth. Accordingly, we can fabricate an array of PDs on a single chip, on which every PD aims for a specific wavelength. (C) 2012 Optical Society of America
URI: http://dx.doi.org/10.1364/OE.20.003572
http://hdl.handle.net/11536/15839
ISSN: 1094-4087
DOI: 10.1364/OE.20.003572
Journal: OPTICS EXPRESS
Volume: 20
Issue: 4
Begin Page: 3572
End Page: 3579
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