Document Detail

Ellipsometry with randomly varying polarization states.
MedLine Citation:
PMID:  22274433     Owner:  NLM     Status:  MEDLINE    
We show that, under the right conditions, one can make highly accurate polarization-based measurements without knowing the absolute polarization state of the probing light field. It is shown that light, passed through a randomly varying birefringent material has a well-defined orbit on the Poincar sphere, which we term a generalized polarization state, that is preserved. Changes to the generalized polarization state can then be used in place of the absolute polarization states that make up the generalized state, to measure the change in polarization due to a sample under investigation. We illustrate the usefulness of this analysis approach by demonstrating fiber-based ellipsometry, where the polarization state of the probe light is unknown, and, yet, the ellipsometric angles of the investigated sample (Ψ and Δ) are obtained with an accuracy comparable to that of conventional ellipsometry instruments by measuring changes to the generalized polarization state.
Feng Liu; Chris J Lee; Juequan Chen; Eric Louis; Peter J M van der Slot; Klaus J Boller; Fred Bijkerk
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Optics express     Volume:  20     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-01-25     Completed Date:  2012-05-22     Revised Date:  2013-03-20    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  870-8     Citation Subset:  IM    
FOM-Institute for Plasma Physics Rijnhuizen, Nieuwegein, The Netherlands.
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MeSH Terms
Equipment Design
Fiber Optic Technology / instrumentation*,  methods*,  standards
Lasers, Gas*
Models, Theoretical*
Optical Fibers
Reproducibility of Results
Reg. No./Substance:
7440-01-9/Neon; 7440-44-0/Carbon
Erratum In:
Opt Express. 2012 Dec 31;20(28):29308

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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