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Journal of Biomedical Optics

Wavelength-coded volume holographic imaging endoscope for multidepth imaging
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Paper Abstract

A wavelength-coded volume holographic imaging (WC-VHI) endoscope system capable of simultaneous multifocal imaging is presented. The system images light from two depths separated by 100  μm in a tissue sample by using axial chromatic dispersion of a gradient index probe in combination with two light-emitting diode sources and a multiplexed volume hologram to separate the images. This system is different from previous VHI systems in that it uses planar multiplexed gratings and does not require curved holographic gratings. This results in improved lateral imaging resolution from 228.1 to 322.5  lp/mm. This letter describes the design and fabrication of the WC-VHI endoscope and experimental images of hard and soft resolution targets and biological tissue samples to illustrate the performance properties.

Paper Details

Date Published: 2 October 2017
PDF: 4 pages
J. Biomed. Opt. 22(10) 100501 doi: 10.1117/1.JBO.22.10.100501
Published in: Journal of Biomedical Optics Volume 22, Issue 10
Show Author Affiliations
Isela D. Howlett, College of Optical Sciences, The Univ. of Arizona (United States)
Wanglei Han, College of Optical Sciences, The Univ. of Arizona (United States)
Photini Rice, The Univ. of Arizona (United States)
Jennifer K. Barton, Univ. of Arizona, College of Optical Sciences (United States)
Raymond K. Kostuk, Univ. of Arizona, College of Optical Sciences (United States)


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