Single-photon negative feedback APD focal plane array with 2.2 um cutoff wavelength

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00167-11-P-0405
Agency Tracking Number: N111-032-0666
Amount: $149,891.00
Phase: Phase I
Program: SBIR
Awards Year: 2011
Solicitation Year: 2011
Solicitation Topic Code: N111-032
Solicitation Number: 2011.1
Small Business Information
NJ, Cranbury, NJ, 08512-3509
DUNS: 170161595
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Mark Itzler
 Cheif Technical Officer
 (609) 495-2551
Business Contact
 Sabbir Rangwala
Title: Vice President, Product D
Phone: (609) 495-2554
Research Institution
For this SBIR program, we propose to demonstrate a solid state short-wave infrared (SWIR) detector technology with true single photon sensitivity with a cutoff wavelength of at least 2.2 um suitable for integration into large-format focal plane arrays (FPAs). Array pixel designs will include self-quenching negative feedback avalanche diode (NFAD) structures with demonstrated single photon response consisting of avalanche pulses providing effective gains of 10^5 to 10^6 charges. These NFAD avalanche pulses also provide extremely reproducible quantized charge packets characterized by charge excess noise of ~1.08. Extended wavelength response to 2.2 um will be achieved using a novel Type II superlattice absorber that is lattice-matched to InP. The ability to realize this extended wavelength response with an absorber lattice-matched to InP provides high material quality (i.e., low dark count rate) and facilitates the incorporation of best-in-class device design elements already proven for our InP-based single photon detectors operating in Geiger mode, such as the NFAD structures. This approach also ensures a rapid integration of these novel 2.2 um pixel designs into large-format arrays that leverage our past success in realizing high-performance arrays of Geiger-mode avalanche diodes as large as 128 x 32.

* Information listed above is at the time of submission. *

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