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14 May 2018 Image fidelity improvement using self-pumped phase conjugation digital holographic microscopy
Yang Kun Chew, Huang Tian Chan, Min Tzung Zhiu, Chia Hao Wu, Chi Ching Chang
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Proceedings Volume 10684, Nonlinear Optics and its Applications 2018; 106842I (2018) https://doi.org/10.1117/12.2314469
Event: SPIE Photonics Europe, 2018, Strasbourg, France
Abstract
In digital holographic microscopy, wavefront aberrations suppressions techniques are very matured from the perspective of the reference wave, i.e. aberrations was suppressed by numerically manipulating the reference wave. There are techniques that deal with the noises that arise from the object arm, but were mostly numerical procedure in the reconstruction stage. We found out that a better approach would be suppressing the noises, particular scattering noise from the object arm, prior to the recording stage via phase conjugation technique. By using phase conjugation technique, it is possible to trace back to the object plane where scattering is minimum; hence, achieving optical noise suppression prior to the recording stage.
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Yang Kun Chew, Huang Tian Chan, Min Tzung Zhiu, Chia Hao Wu, and Chi Ching Chang "Image fidelity improvement using self-pumped phase conjugation digital holographic microscopy", Proc. SPIE 10684, Nonlinear Optics and its Applications 2018, 106842I (14 May 2018); https://doi.org/10.1117/12.2314469
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KEYWORDS
Digital holography
Phase conjugation
Signal to noise ratio
Scattering
Holography
Microscopy
Holograms
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