A High Performance Room-Temperature Near-Infrared Camera
Abstract
The objective of this program is to advance InGaAs materials technology to allow high performance imaging at room temperature in the 1.0-2.6 micrometer near infrared band. During Phase I, 128xl28 pixel lattice-matched In(.53)Ga(.47) As focal plane arrays from 1-1.7 micrometer were fabricated. The detectivity, D*, was 10(13) cm-Hz(.5)/W at room temperature and greater than 3x10(exp 14) at 230K - a value very nearly background limited. The standard deviation in D* was 14% of the mean value and 98% of the pixels has a D* greater then 50% of the mean value. These results significantly advance the state-of-the-art and all of the objectives of Phase I were met or exceeded. The goals of Phase II will be to advance the materials growth and processing technologies of lattice mismatched InGaAs so as to lower the dark current sufficiently that room temperature imaging in the 1.0-2.6 um band can be performed. This goal has proven elusive despite investments of tens of millions of dollars over more than a decade. Potential applications of this research include remote atmospheric sensing, LIDAR, satellite imaging, and near infrared spectroscopy.... Near-infrared, InGaAs, Camera, Imaging, Focal plane array.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 20, 1993
- Accession Number
- ADA260602
Entities
People
- Gregory H. Olsen
- Marshall J. Cohen
- Robert Trew