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1.55 {mu}m GaInNAs resonant-cavity-enhanced photodetector grown on GaAs

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.2048828· OSTI ID:20709747
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  1. Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083 (China)
We report the design, growth, fabrication, and characterization of a GaAs-based resonant-cavity-enhanced (RCE) GaInNAs photodetector operating at 1.55 {mu}m. The structure of the device was designed using a transfer-matrix method (TMM). By optimizing the molecular-beam epitaxy growth conditions, six GaInNAs quantum wells were used as the absorption layers. Twenty-five (25)- and 9-pair GaAs/AlAs-distributed Bragg reflectors were grown as the bottom and top mirrors. At 1.55 {mu}m, a quantum efficiency of 33% with a full width at half maximum of 10 nm was obtained. The dark current density was 3x10{sup -7} A/cm{sup 2} at a bias of 0 V and 4.3x10{sup -5} A/cm{sup 2} at a reverse bias of 5 V. The primary time response measurement shows that the device has a rise time of less than 800 ps.
OSTI ID:
20709747
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 11 Vol. 87; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English