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NIR/LWIR dual-band infrared photodetector with optical addressing

Proceedings of SPIE - The International Society for Optical Engineering

Cellek, O.O.; Kim, H.S.; Reno, John L.; Zhang, Y.H.

A near infrared (NIR) and long-wavelength infrared (LWIR) dual-band infrared photodetector, which can switch detection bands with light bias, is demonstrated at 77 K. The demonstrated scheme consists of series connected photodetectors for different bands. The basic operating principle of the scheme is that without light bias, shorter wavelength detector limits the total current and thus the device operates in NIR mode. With light bias on the NIR detector, the LWIR detector becomes the current limiting device and the device then operates in LWIR mode. Proposed design allows single indium-bump per pixel focal plane arrays, and in principle allows covering all tactical bands such as UV, visible, NIR, SWIR, MWIR and LWIR bands with a single pixel. © 2012 SPIE.

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TYPE Conference YEAR 2012
ScopusOSTI

Interaction between metamaterial resonators and inter-subband transitions in quantum wells

2011 Conference on Lasers and Electro-Optics: Laser Science to Photonic Applications, CLEO 2011

Gabbay, Alon; Reno, John L.; Wendt, Joel R.; Gin, Aaron G.; Wanke, Michael C.; Sinclair, Michael B.; Shaner, Eric A.; Brener, Igal

Interaction between metamaterial elements and intersubband transitions in GaAs/AlGaAs quantum wells is observed in the mid-infrared. Transmission measurements were performed through metamaterial arrays, each having a different resonance frequency. © 2011 OSA.

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TYPE Conference YEAR 2011
ScopusOSTI
Results 201–225 of 343
Results 201–225 of 343