22 August 2011 Volume holographic imaging with broadband illumination
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In this paper the imaging properties of volume holographic gratings with different illumination sources are investigated. In the experiments, the recording material is a 2-mm-thick LiNbO3: Fe: Cu crystal in which a volume hologram is recorded by two recording beams interfering at the wavelength of 532 nm. The grating recorded at wavelength of 532 nm can be Bragg matched at another wavelength of 640 nm by using a different reconstruction angle. The depth resolution of the volume holographic imaging system at the wavelength 640 nm is obtained experimentally, which is in accordance with the theoretical value. The volume holographic imaging with a white light is also conducted in the experiment. The result shows that more lateral information about the object can be obtained according to the Bragg degeneracy.
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Jiangtao Wu, Jiangtao Wu, Zhuqing Jiang, Zhuqing Jiang, Lei Song, Lei Song, Yujia Wang, Yujia Wang, Shiquan Tao, Shiquan Tao, } "Volume holographic imaging with broadband illumination", Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 819239 (22 August 2011); doi: 10.1117/12.900846; https://doi.org/10.1117/12.900846

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