Research/Patents/US 5739950
US 5739950Tier 3 — General Defense

BROADBAND PROTECTOR FOR PHOTODETECTORS

Assignee

US Government

Filed as: UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE ARMY

Filed

Sep 1, 1989

Granted

Apr 14, 1998

Location

FAIRFAX VA US

Abstract

A trilaminar semiconductor device is placed at an intermediate focus is an optical instrument having a sensitive photodetector. The layers of the device are successively in the form of a two-photon absorber, a sacrificial layer, and a multiple quantum well. The composition of the semiconductor is varied in the layers to achieve the desired bandgap and function.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Nov 3, 1989

Rescinded

Dec 5, 1997

Duration

8 years, 1 month

Inventor

  • 1GARY L. WOOD

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records