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Title: Quantitative phase imaging by three-wavelength digital holography

Journal Article · · Optics Express
DOI:https://doi.org/10.1364/OE.16.009753· OSTI ID:1036197
 [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. ORNL
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Three-wavelength digital holography is applied to obtain surface height measurements over several microns of range, while simultaneously maintaining the low noise precision of the single wavelength phase measurement. The precision is preserved by the use of intermediate synthetic wavelength steps generated from the three wavelengths and the use of hierarchical optical phase unwrapping. As the complex wave-front of each wavelength can be captured simultaneously in one digital image, real-time performance is achievable.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1036197
Journal Information:
Optics Express, Vol. 16, Issue 13; ISSN 1094-4087
Country of Publication:
United States
Language:
English

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