High Density HGCDTE Avalanche Photodiode Array Performance

reportActive / Technical Report | Accession Number: ADA390368 | Open PDF

Abstract:

Recent advances in Infrared materials and device design have been applied to developing a new class of high sensitivity It-Vi Avalanche Photodiodes APDs for eyesafe applications. These devices utilize Hg1-x Cdx Te and are designed using separate absorber and avalanche layers. Low excess noise at high gains is achieved by exploiting the natural resonance for hole avalanche multiplication in the gain region while high quantum efficiency is obtained by separately optimizing the thickness and field in the absorbing regions. The excellent k-value ratio of electron to hole ionization coefficient 0.1 achieved for Hg1-x Cdx Te is particularly advantageous in the development of APD arrays for 3D LADAR imaging applications.

Author(s):
Anderson, C. ; Bailey, S. ; Chapamn, G. ; Gordon, E. ; Herning, P.
Author Organization(s):
RAYTHEON CO GOLETA CA
Supplementary Note:
Prepared in cooperation with HRL, Malibu, CA, Raytheon Systems Co. of Plano, TX, Tucson, AR, and El Segundo, CA, Laboratory for the Physical Sciences, College Park, MD and Night Vision and Electronic Sensors Directorate, Fort Belvoir, VA.
Pagination:
0009

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DAAB07-96-D-H753
Monitor Series:
AMSEL-RD-NVD
 Subject Terms
Modernization Areas:
Microelectronics; Quantum Science and Computing
Communities of Interest:
Advanced Electronics
Descriptor(s):
*SEMICONDUCTOR LASERS, *PHOTODETECTORS, OPTICS, TARGET RECOGNITION, ARRAYS, THREE DIMENSIONAL, INFRARED LASERS, EYE SAFETY, QUANTUM EFFICIENCY, RANGE FINDING, PHOTODIODES, MERCURY CADMIUM TELLURIDES, AVALANCHE DIODES
Field(s)/Group(s):
Lasers and Masers, Infrared Detection and Detectors
Keyword(s):
APD(AVALANCHE PHOTODIODES), LADAR(LASER DETECTION AND RANGING), EYESAFE, LASER RANGE FINDERS
Report Date:
1999 Aug 01
Creation Date:
2001 Jun 06