Accession Number:

ADA592778

Title:

Method and Characterization of Pyroelectric Coefficients for Determining Material Figures of Merit for Infrared (IR) Detectors

Descriptive Note:

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE

Report Date:

2013-12-01

Pagination or Media Count:

20.0

Abstract:

Infrared IR detectors have found wide-spread use in military applications including night-vision, rifle sights, surveillance gear, and tracking and guidance systems 1. These detectors provide a means for information collection and increased situational awareness, allowing for threat identification and informed decision making. The IR sensors used in these detectors can be categorized into two classes Photon or quantum and Thermal depending on the physics of operation. Photon detectors operate by the creation of an electrical signal in semiconducting material produced from the electronic absorption of incoming photons, and the signal is read as a photocurrent or at a photovoltaic p-n junction. These detectors can provide high-sensitivity and fast refresh rates and are typically found in applications with high-sensitivity requirements. Unfortunately, these detectors require sub-100 K cooling to lower thermal noise for optimal performance making them both bulky and expensive 2.

Subject Categories:

  • Infrared Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE