Modified filter design to optimize the synthetic reference wave in the generalized phase contrast method

Romero, Mary Jacquiline and Daria, Vincent Ricardo (2007) Modified filter design to optimize the synthetic reference wave in the generalized phase contrast method. Optics Communications, 280 2: 237-242. doi:10.1016/j.optcom.2007.08.029


Author Romero, Mary Jacquiline
Daria, Vincent Ricardo
Title Modified filter design to optimize the synthetic reference wave in the generalized phase contrast method
Journal name Optics Communications   Check publisher's open access policy
ISSN 0030-4018
1873-0310
Publication date 2007-12-15
Sub-type Article (original research)
DOI 10.1016/j.optcom.2007.08.029
Open Access Status Not yet assessed
Volume 280
Issue 2
Start page 237
End page 242
Total pages 6
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Language eng
Abstract We propose a modified design of the phase contrast filter to optimize the synthetic reference wave (SRW) in the generalized phase contrast method. The modified filter consists of a π-phase shifting disk surrounded by an annular ring to modulate the curvature of the intensity distribution generally associated with the SRW. We identify optimal filter parameters to yield a uniform intensity distribution within the working area. Performance tests where done for both periodic and arbitrary input phase patterns using the optimal filter parameters. Assessment of the quality of the projected intensity patterns suggests a more uniform intensity distribution at the output when using the modified filter.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
 
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