Accession Number:

ADD019292

Title:

System Which uses Porous Silicon for Down Converting Electromagnetic Energy to an Energy Level within the Bandpass of an Electromagnetic Energy Detector

Descriptive Note:

Patent, Filed 6 Mar 97, patented 27 Oct 98

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1998-10-27

Pagination or Media Count:

9.0

Abstract:

An electromagnetic energy detector system down converts electromagnetic energy from a relatively high energy beyond the detectable range of an electromagnetic energy detector to a lower energy level within the detectable range of the electromagnetic energy detector. The detector includes a transparent substrate, a porous silicon structure formed on the substrate for down converting electromagnetic energy characterized by a first wavelength W1 to electromagnetic energy characterized by a second wavelength W2, where W2W1 and an electromagnetic energy detector for detecting the down converted electromagnetic energy. The detector is useful in applications where the electromagnetic energy detector would ordinarily be incapable of detecting the higher level electromagnetic energy directly without going through the down conversion process effectuated by the porous silicon structure.

Subject Categories:

  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE