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US 5,317,897 AGranted
Method for detecting the presence of a gas with an opto-electronic gas sensor
AssigneeSiemens Corporate Research, Inc.
InventorsKevin W. Jelley, G. Jordan Maclay
Life of this patent
Estimating the term…
Abstract
Apparatus for detecting the presence of a gas in an ambient atmosphere comprises a multiple quantum well structure; a thin mesh of a transition metal formed on the multiple quantum well structure; and an arrangement for monitoring transmission of electromagnetic radiation through the mesh and the multiple quantum well structure.
Claims3
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.
Dependencies are inferred from the claim text.