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Method for detecting the presence of a gas with an opto-electronic gas sensor

  • US 5,317,897 A
  • Filed: 11/30/1992
  • Issued: 06/07/1994
  • Est. Priority Date: 12/28/1989
  • Status: Expired due to Term
First Claim
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1. A method for detecting the presence of a gas in an ambient atmosphere comprising the steps of:

  • transmitting electromagnetic radiation through a multiple quantum well structure and a thin mesh of a transition metal formed thereon;

    exposing said mesh to an ambient atmosphere containing a gas to be detected;

    monitoring detecting the presence of a gas by electromagnetic radiation transmitted through sa multiple quantum well structure and said thin mesh for a change.

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