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

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$149,891.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
N00167-11-P-0405
Award Id:
n/a
Agency Tracking Number:
N111-032-0666
Solicitation Year:
2011
Solicitation Topic Code:
N111-032
Solicitation Number:
2011.1
Small Business Information
NJ, Cranbury, NJ, 08512-3509
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
170161595
Principal Investigator:
Mark Itzler
Cheif Technical Officer
(609) 495-2551
mitzler@princetonlightwave.com
Business Contact:
Sabbir Rangwala
Vice President, Product D
(609) 495-2554
srangwala@princetonlightwave.com
Research Institute:
Stub




Abstract
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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