Research/Patents/US 5311221
US 5311221

ELECTROMAGNETIC WAVE MODULATOR EQUIPPED WITH COUPLED QUANTAL WELLS, AND APPLICATION TO AN ELECTROMAGNETIC WAVE DETECTOR

Assignee

THOMSON-CSF

Filed

May 11, 1989

Granted

May 10, 1994

Location

PARIS FR

Abstract

A semi-conducting structure delimits two quantal wells (CP1, CP2) connected across a barrier layer (CB). The application of an electric field to the structure makes possible the transfer of electrons from one of the wells to the other. The electron-hole pairs are created by a wave-pump, or by the doping of one of the wells. This makes possible, in particular, a dual control by means of the wave-pump and the electric field, thus creating an "AND"-function modulator.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 22, 1990

Rescinded

Dec 31, 1990

Duration

9 months

Inventor

  • 1NAKITA VODJDANI

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Record Details

Patent number
US 5311221
Application
00736468
Aerospace match
Yes
Dataset source
35 USC §181 SO records

Browse by Assignee

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