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- Title
Eliminate the influence of zero-order diffraction for wavefront reconstruction with selectable magnification in digital holographic.
- Authors
Zhang, Yaping; Li, Junchang; Yang, Wenming; Zhang, Jianqiang; Wang, Peng; Xu, Wei
- Abstract
The objective surface is considered as the scattering plane; frequency spectrum of a digital hologram transmission light is studied when the reference light and reconstruction wave are spherical waves. The relation between relevant parameters and the object light, conjugate object light and zero-order diffraction wave frequency spectrum distribution. The research results show that: each frequency spectrum of the diffracted wave broadens to various degrees as the radius of the reconstruction wavefront decreases, and frequency aliasing is generated under certain conditions. Based on the research results, a new method that carries out high-pass filtering processing without zero-order diffraction interference upon digital hologram is proposed and the reconstruction experimental proof for eliminating the interferential changeable magnification wave is given.
- Subjects
DIGITAL holographic microscopy; MAGNIFICATION (Optics); LIGHT transmission; LIGHT scattering; SPHERICAL waves; MATHEMATICAL proofs
- Publication
Optical & Quantum Electronics, 2013, Vol 45, Issue 10, p1077
- ISSN
0306-8919
- Publication type
Article
- DOI
10.1007/s11082-013-9718-9