Title :
Quantum dot infrared sensors with photonic crystal cavity
Author :
Krishna, Sanjay ; Posani, K.T. ; Tripathi, Vaibhav ; Annamalai, S.
Author_Institution :
ECE Dept., New Mexico Univ., Albuquerque, NM
Abstract :
This paper reports the use a photonic crystal resonant cavity to increase the quantum efficiency, detectivity, and the background limited infrared photodetector temperature of the quantum dot detector. The results of spectral response measurements of InAs/InGaAs/GaAs dots-in-well (DWELL) detectors are also discussed in detail
Keywords :
III-V semiconductors; cavity resonators; gallium arsenide; indium compounds; infrared detectors; optical resonators; photodetectors; photonic crystals; quantum well devices; semiconductor quantum dots; InAs-InGaAs-GaAs; detectivity; dots-in-well detectors; infrared photodetector temperature; infrared sensors; photonic crystal cavity; quantum dot sensors; quantum efficiency; resonant cavity; spectral response measurements; Chemical technology; Crystalline materials; Dark current; Gallium arsenide; Infrared detectors; Infrared sensors; Photodetectors; Photonic crystals; Quantum dots; Temperature sensors;
Conference_Titel :
Lasers and Electro-Optics Society, 2005. LEOS 2005. The 18th Annual Meeting of the IEEE
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-9217-5
DOI :
10.1109/LEOS.2005.1548305
