Hybrid APD for single visible photon imaging

Bill Smith; Keith T. Passmore; Arlynn W. Smith; Randy Lundberg; Nils Ian Thomas; Nick Bell; Chris Lively; Roger Sillmon; Rudolph G. Benz; Eric Karplus; J. M. Abraham; Hugh W. Popenoe; Richard Farrell; Daniel Ferenc

doi:10.1117/12.450893

5 February 2003 Hybrid APD for single visible photon imaging

Bill Smith, Keith T. Passmore, Arlynn W. Smith, Randy Lundberg, Nils Ian Thomas, Nick Bell, Chris Lively, Roger Sillmon, Rudolph G. Benz, Eric Karplus, J. M. Abraham, Hugh W. Popenoe, Richard Farrell, Daniel Ferenc

Author Affiliations +

Proceedings Volume 4796, Low-Light-Level and Real-Time Imaging Systems, Components, and Applications; (2003) https://doi.org/10.1117/12.450893
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

A hybrid photodetector based on a Gen 3 photocathode and electron-bombarded silicon, non-pixilated, position sensitive, Avalanche Photo Diode (APD) is being developed. The device promises gains of over 10⁶ and sub-millimeter spatial resolution. Signals read at the output of the device can be used to build up images, integrated over the time scales relevant to the process being studied. This integration as a post-process allows significant flexibility in investigation at very low light levels. A design and fabrication process is being developed that can be readily adapted for fast-turnaround proof-of-concept prototypes using a variety of solid state detectors. This process approach also facilitates the parallel development of high Quantum Efficiency (QE), low dark count III-V based photocathodes with a broad range of spectral response from UV to NIR. The Imaging Hybrid Avalanche Photo Diode (IHAPD) is targeted to bioluminescence, chemoluminescence and other low light level spectral imaging. A discussion of a reflection mode hybrid APD development is included as well.

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Bill Smith, Keith T. Passmore, Arlynn W. Smith, Randy Lundberg, Nils Ian Thomas, Nick Bell, Chris Lively, Roger Sillmon, Rudolph G. Benz, Eric Karplus, J. M. Abraham, Hugh W. Popenoe, Richard Farrell, and Daniel Ferenc "Hybrid APD for single visible photon imaging", Proc. SPIE 4796, Low-Light-Level and Real-Time Imaging Systems, Components, and Applications, (5 February 2003); https://doi.org/10.1117/12.450893

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KEYWORDS

Avalanche photodetectors

Prototyping

Quantum efficiency

Gallium arsenide

Image processing

Sensors

Compound parabolic concentrators

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