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Proceedings Paper

Research on depth-of-field depth-of-light field microscopy in the terahertz band
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Paper Abstract

Light field microscopic imaging technology is achieved by inserting a micro-lens array capable of capturing light field information on the relay image plane of a conventional optical microscope. The multi-focus surface can be extracted by the refocusing technique to increase the geometric depth of field. The terahertz wave has many advantages, such as strong penetrating power, low photon energy , good coherence and so on. Therefore, It can be used for microscopic imaging to obtain more comprehensive information, and can also improve the depth of field and resolution of imaging, and is also suitable for the detection of living organisms. Based on the principle of light field microscopic imaging and terahertz microscopic imaging technology, this paper analyzed the depth of field is related to the wavelength of the light source and the size of the micro-lens array. It has been found that the depth of terahertz light field microscopy technology can be increased by at least one to two orders of magnitude when the wavelength range is extended to the terahertz band.

Paper Details

Date Published: 18 November 2019
PDF: 8 pages
Proc. SPIE 11196, Infrared, Millimeter-Wave, and Terahertz Technologies VI, 111961G (18 November 2019); doi: 10.1117/12.2537710
Show Author Affiliations
Jiaqi Zhang, Key Lab. of Terahertz Optoelectronics (China)
Beijing Key Lab. for Terahertz Spectroscopy and Imaging (China)
Beijing Advanced Innovation Ctr. for Imaging Technology (China)
Lihua Geng, Key Lab. of Terahertz Optoelectronics (China)
Beijing Key Lab. for Terahertz Spectroscopy and Imaging (China)
Beijing Advanced Innovation Ctr. for Imaging Technology (China)
Zhichen Bai, Key Lab. of Terahertz Optoelectronics (China)
Beijing Key Lab. for Terahertz Spectroscopy and Imaging (China)
Beijing Advanced Innovation Ctr. for Imaging Technology (China)
Jingsuo He, Key Lab. of Terahertz Optoelectronics (China)
Beijing Key Lab. for Terahertz Spectroscopy and Imaging (China)
Beijing Advanced Innovation Ctr. for Imaging Technology (China)
Bo Su, Key Lab. of Terahertz Optoelectronics (China)
Beijing Key Lab. for Terahertz Spectroscopy and Imaging (China)
Beijing Advanced Innovation Ctr. for Imaging Technology (China)
Cunlin Zhang, Key Lab. of Terahertz Optoelectronics (China)
Beijing Key Lab. for Terahertz Spectroscopy and Imaging (China)
Beijing Advanced Innovation Ctr. for Imaging Technology (China)


Published in SPIE Proceedings Vol. 11196:
Infrared, Millimeter-Wave, and Terahertz Technologies VI
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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