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High Speed Room Temperature IR Camera Based on Plasmon Physics

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-06-C-0462
Agency Tracking Number: 05ST1-0062
Amount: $1,447,560.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: ST051-005
Solicitation Number: 2005.
Solicitation Year: 2005
Award Year: 2006
Award Start Date (Proposal Award Date): 2006-09-11
Award End Date (Contract End Date): 2006-10-01
Small Business Information
825 S. Myrtle Ave.
Monrivia, CA 91016-1016
United States
DUNS: 195754056
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Ravi Verma
 (626) 471-9712
Business Contact
 Mr.Kevin Dinniene
Title: Controller
Phone: (626) 471-9778
Research Institution
 Meredith O''Con
2540 Dole Street Hall 402
Honolulu, HI 96822-
United States

 (650) 724-5854
 Nonprofit College or University

It is desirable to make focal plane arrays (or imaging arrays) with reduced pitch; doing so enables smaller, cheaper and lighter camera systems that provide the same image resolution. Currently, the lower limit on pitch is set by electron/hole diffusion and light diffraction that results in crosstalk between neighboring pixels. Since electron hole pairs generated outside the depletion layer can be collected anywhere within 1 diffusion length scale, when the pitch is reduced below the diffusion length scale, the resultant resolution is compromised. On the other hand, if the individual detectors are made smaller than the wavelength of light, then they become nearly transparent to the light, and the quantum efficiency is compromised. In this proposal, we will implement a new photodiode architecture that was developed in the Phase I. In this photodiode, the optical energy of incident light is first compressed into a very small volume. The compressed optical energy is focused onto the depletion layer of a nanoscale photodetector, thereby preventing any electron-hole pair generation outside the depletion layer. Thus, we will circumvent the diffusion limit, and also the diffraction limit. During the Phase II project, we will implement specific designs of this architecture at LWIR wavelengths using mercury-cadmium-telluride alloys and at visible wavelengths using silicon compatible materials.

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

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