A High Precision Synthetic Method of Sub-Holograms in Phase-Shifting Synthetic Aperture Digital Hologram

Hongyan, 李红燕 Li; Zhijian, 马志俭 Ma; Liyun, 钟丽云 Zhong; Xiaoxu, 吕晓旭 Lü

doi:10.3788/aos201131.0509001

光学学报

2011

DOI: 10.3788/aos201131.0509001

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A High Precision Synthetic Method of Sub-Holograms in Phase-Shifting Synthetic Aperture Digital Hologram

李红燕 Li Hongyan¹,

马志俭 Ma Zhijian²,

钟丽云 Zhong Liyun³

et al.

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2012

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Advanced Aperture Synthesis by Wave-Front Combination in Generalized Phase-Shifting Interferometry

Cai

et al. 2012

Chinese Phys. Lett.

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An approach to improve the image quality by aperture synthesis in generalized phase-shifting interferometry is proposed. The aperture of the holographic system is enlarged by increasing the recording area to receive a more diffusive spectrum by moving a singular CCD. The sub-object wave fronts are combined with the index of their intensities. This method can avoid the negative effect of environmental disturbance and improve the synthesis efficiency by hundreds of times. The optical experiments have shown that it is simple and robust to stitch the complex object wave front accurately and to improve the imaging quality greatly, especially for the recording of large scale objects.

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Advanced Aperture Synthesis by Wave-Front Combination in Generalized Phase-Shifting Interferometry

Cai

et al. 2012

Chinese Phys. Lett.

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Focal depth of digital lensless Fourier transform micro-holographic system

Wang¹,

Zhang²,

Liao³

et al. 2012

Acta Phys. Sin.

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Based on the Strehl criterion of coherent lens imaging system, the focal depth (FD) of lensless Fourier digital micro-holographic system is deduced. The FD expressions of the holographic systems with symmetrical and unsymmetrical reference point sources are obtained. The results show that the FD of lensless Fourier digital micro-holographic system is dependent not only on the optical wavelength and the numerical aperture of the recording system but also on the offset of the reference optical source, which is different from the FD of lensless Fourier digital micro-holographic system. The validities of the theoretical analysis are demonstrated by the computer simulations and experiments.

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A High Precision Synthetic Method of Sub-Holograms in Phase-Shifting Synthetic Aperture Digital Hologram

Cited by 2 publications

References 0 publications

Advanced Aperture Synthesis by Wave-Front Combination in Generalized Phase-Shifting Interferometry

Advanced Aperture Synthesis by Wave-Front Combination in Generalized Phase-Shifting Interferometry

Focal depth of digital lensless Fourier transform micro-holographic system

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