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Depth resolution enhancement in optical scanning holography with a dual-wavelength laser source |
Applied Optics, Vol. 50, Issue 34, pp. H285-H296 (2011)
http://dx.doi.org/10.1364/AO.50.00H285
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Abstract
In this paper, we use two point sources to analyze the depth resolution of an optical scanning holography (OSH) system with a single-wavelength source. A dual-wavelength source is then employed to improve it, where this dual-wavelength OSH (DW-OSH) system is modeled with a linear system of equations. Object sectioning in DW-OSH is obtained with the Fourier domain conjugate gradient method. Simulation results show that, with the two source wavelengths at 543 nm and 633 nm, a depth resolution at 2.5 μm can be achieved. Furthermore, an OSH system emulator is provided to demonstrate the performance of DW-OSH compared with a conventional OSH system.
© 2011 Optical Society of America
OCIS Codes
(100.3020) Image processing : Image reconstruction-restoration
(100.3190) Image processing : Inverse problems
(110.1758) Imaging systems : Computational imaging
(090.1995) Holography : Digital holography
ToC Category:
Optimization, Improvement, Enhancement, and Coding in Digital
Holography
History
Original Manuscript: August 5, 2011
Revised Manuscript: September 15, 2011
Manuscript Accepted: October 5, 2011
Published: December 5, 2011
Virtual Issues
Digital Holography and 3D Imaging 2011 (2011) Applied Optics
Citation
Jun Ke, Ting-Chung Poon, and Edmund Y. Lam, "Depth resolution enhancement in optical scanning holography with a dual-wavelength laser source," Appl. Opt. 50, H285-H296 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-34-H285
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