Share Email Print

Proceedings Paper

New methods for ultra-sensitive and fast SWIR imaging (Conference Presentation)
Author(s): Hooman Mohseni

Paper Abstract

Currently, there is no SWIR camera that can detect a single photon above cryogenic temperatures. We present the latest results of our Electron Injection (EI) cameras, which show a clear path toward achieving such a formidable goal. We present a fundamental relation between the capacitance of EI injector and its sensitivity to photons, and show experimental results that strongly support it. We also demonstrate the weak temperature dependency of the EI detectors, which allows operation with compact thermoelectric coolers. We also present our latest results for ultra-fast SWIR modulators, as fast optical shutter, and their applications in time of flight (ToF) SWIR 3D imaging. Our results show 3D imaging at video rates, with an unprecedented depth resolution due to the low energy consumption in the modulator. Our measurements show our new SWIR modulators consume only ~1 femto-Joule/bit, and with a timing accuracy of ~4 pico-seconds.

Paper Details

Date Published: 8 March 2019
Proc. SPIE 10926, Quantum Sensing and Nano Electronics and Photonics XVI, 109260U (8 March 2019); doi: 10.1117/12.2514659
Show Author Affiliations
Hooman Mohseni, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 10926:
Quantum Sensing and Nano Electronics and Photonics XVI
Manijeh Razeghi; Jay S. Lewis; Eric Tournié; Giti A. Khodaparast, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?