Paper Title:
Novel Measurement Method of Small Phase with Interference Phase Contrast
  Abstract

A novel method to measure small phase in micro-holography is discussed. It originated from Zernike phase contrast imaging technique, which has been a successful linear phase-to-intensity mapping approach toward phase object. Instead of phase-changing plate, an interference phase contrast technique that is based on in-line holography is utilized to obtain a hologram in the proposed method. The intensity distribution of hologram presents a monotone function with respect to phase distribution of phase object. Thus, the phase can be directly detected through hologram without phase unwrapping. In the work, the contrast of hologram is analyzed toward various phase difference between object wave and reference wave. An optimal solution to measure small phase of phase object is developed, which extends the measuring range of phase. Simulation on a computer is performed to validate theoretically the proposed method.

  Info
Periodical
Advanced Materials Research (Volumes 301-303)
Chapter
Chapter 2: Measuring and Testing Techniques
Edited by
Riza Esa and Yanwen Wu
Pages
1020-1023
DOI
10.4028/www.scientific.net/AMR.301-303.1020
Citation
L. P. Pan, C. G. Li, "Novel Measurement Method of Small Phase with Interference Phase Contrast", Advanced Materials Research, Vols. 301-303, pp. 1020-1023, 2011
Online since
July 2011
Export
Price
$35.00
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