Document Detail


Nanodisplacement measurement using spectral shifts in a white-light interferometer.
MedLine Citation:
PMID:  19037359     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We report a novel experimental method to measure nanometer displacements using wavelength shifts of spectral peaks around spectral switch or singular phase points in the interference spectra due to temporal correlation in a Michelson interferometer illuminated by a broadband white-light source. Dramatic changes in the spectral characteristics are recorded as a function of path difference between the interfering beams around the spectral switch position. These are then compared with measurements far from it in order to demonstrate the higher sensitivities involved in the proposed method.
Authors:
Maruthi M Brundavanam; Nirmal K Viswanathan; D Narayana Rao
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  47     ISSN:  1539-4522     ISO Abbreviation:  Appl Opt     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-11-27     Completed Date:  2009-01-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6334-9     Citation Subset:  -    
Affiliation:
School of Physics, University of Hyderabad, Hyderabad 500046, India.
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