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Citation/Abstract

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Detection of grating coupled surface plasma waves on Ag-nGaAs photodiodes
by Tremblay, Robert James, II, M.S., University of Massachusetts Lowell, 1995, 56 pages; AAT 1361930

Abstract (Summary)

An array of Ag-nGaAs Schottky photodiodes was designed and fabricated with a surface grating to couple incident light into surface plasma waves confined to the air-metal interface. Both electrical and optical characterizations were performed. This device was compared to a similar grating coupled detector consisting of Ag-Ti-nGaAs. The following observations were made concerning (1) the polarization dependent surface plasma enhanced detectivity for 20$\sp\circ$ angle of incidence; (2) the absence of a 24$\sp\circ$ offset experience by the Ag-Ti-nGaAs device; and (3) the improvement in detectivity resulting from the absence of titanium in the Ag-nGaAs device.

Indexing (document details)

Advisor:Karakashian, A. S.
School:University of Massachusetts Lowell
School Location:United States -- Massachusetts
Source:MAI 33/06, p. 1886, Dec 1995
Source type:Dissertation
Subjects:Optics, Condensation
Publication Number: AAT 1361930
Document URL:http://proquest.umi.com/pqdweb?did=743298941&sid=6&Fmt=2&cli entId=13708&RQT=309&VName=PQD
ProQuest document ID:743298941


 

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