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Laboratory demonstration of an infrared-to-visible up-conversion interferometer for spatial coherence analysis.
MedLine Citation:
PMID:  18518109     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We experimentally demonstrate the possibility of retrieving the spatial coherence of an infrared source by using an up-conversion interferometer. Sum-frequency generation in Ti-diffused periodically poled lithium-niobate waveguides in both arms of the interferometer is used to convert the infrared into the visible domain. The fringe contrast of the interference pattern in the visible domain permits us to resolve the spatial separation of two uncorrelated pointlike infrared sources, which simulate a binary star. The validity of these measurements is confirmed through a simultaneous comparison with a reference interferometer working in the infrared domain.
Authors:
S Brustlein; L Del Rio; A Tonello; L Delage; F Reynaud; H Herrmann; W Sohler
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Publication Detail:
Type:  Journal Article     Date:  2008-04-16
Journal Detail:
Title:  Physical review letters     Volume:  100     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-06-03     Completed Date:  2008-06-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  153903     Citation Subset:  -    
Affiliation:
XLIM Département Photonique, UMR CNRS 6172, 123 Avenue A. Thomas, Limoges Cedex, France.
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