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Beam walk-off suppression in photorefractive polymer-based coherence domain holography
- Source :
- Applied Physics B. 102:803-807
- Publication Year :
- 2010
- Publisher :
- Springer Science and Business Media LLC, 2010.
-
Abstract
- The effect of beam walk-off is known to reduce the overlap region of the writing beams in coherence domain holographic imaging. In photorefractive (PR) polymer devices this problem is particularly pronounced because of the restrictions that are imposed by the slanted recording geometry. Here, we demonstrate that by optically demagnifying the image bearing signal beam the field of view can be enhanced by a factor of 8. In addition, we found that the area ratio of the writing and readout beams determines both the PR performance and the depth resolution. In a second approach, we show that by changing the recording geometry from transmission to reflection the field of view can be almost fully recovered.
- Subjects :
- Quantum optics
Physics
Physics and Astronomy (miscellaneous)
business.industry
General Engineering
Holography
General Physics and Astronomy
Field of view
Photorefractive effect
Superluminescent diode
law.invention
Optics
Signal beam
law
Optoelectronics
business
Beam (structure)
Coherence (physics)
Subjects
Details
- ISSN :
- 14320649 and 09462171
- Volume :
- 102
- Database :
- OpenAIRE
- Journal :
- Applied Physics B
- Accession number :
- edsair.doi...........b23819249b274d730f5705f31ce1e785