High-resolution terahertz reflective imaging and image restoration

Sheng Hui Ding; Qi Li; Rui Yao; Qi Wang

doi:10.1364/AO.49.006834

High-resolution terahertz reflective imaging and image restoration

Sheng Hui Ding^*
, Qi Li
, Rui Yao
, Qi Wang

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

We present a high-resolution terahertz (THz) reflective imaging system, operating at 2:52 THz, that employs a continuous-wave THz gas laser and a pyroelectric detector. The spatial resolution was evaluated from the system's modulation transfer function and tested by scanning a series of resolution targets. To further improve the image quality, Lucy-Richardson method was adopted to restore the scanning result. With the scanning spot profile measured using knife edge method, a satisfying restoration result can be obtained. Finally, the system's performance was observed by imaging some different test objects.

Original language	English
Pages (from-to)	6834-6839
Number of pages	6
Journal	Applied Optics
Volume	49
Issue number	36
DOIs	https://doi.org/10.1364/AO.49.006834
State	Published - 20 Dec 2010

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title = "High-resolution terahertz reflective imaging and image restoration",

abstract = "We present a high-resolution terahertz (THz) reflective imaging system, operating at 2:52 THz, that employs a continuous-wave THz gas laser and a pyroelectric detector. The spatial resolution was evaluated from the system's modulation transfer function and tested by scanning a series of resolution targets. To further improve the image quality, Lucy-Richardson method was adopted to restore the scanning result. With the scanning spot profile measured using knife edge method, a satisfying restoration result can be obtained. Finally, the system's performance was observed by imaging some different test objects.",

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AU - Ding, Sheng Hui

AU - Li, Qi

AU - Yao, Rui

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N2 - We present a high-resolution terahertz (THz) reflective imaging system, operating at 2:52 THz, that employs a continuous-wave THz gas laser and a pyroelectric detector. The spatial resolution was evaluated from the system's modulation transfer function and tested by scanning a series of resolution targets. To further improve the image quality, Lucy-Richardson method was adopted to restore the scanning result. With the scanning spot profile measured using knife edge method, a satisfying restoration result can be obtained. Finally, the system's performance was observed by imaging some different test objects.

AB - We present a high-resolution terahertz (THz) reflective imaging system, operating at 2:52 THz, that employs a continuous-wave THz gas laser and a pyroelectric detector. The spatial resolution was evaluated from the system's modulation transfer function and tested by scanning a series of resolution targets. To further improve the image quality, Lucy-Richardson method was adopted to restore the scanning result. With the scanning spot profile measured using knife edge method, a satisfying restoration result can be obtained. Finally, the system's performance was observed by imaging some different test objects.

UR - https://www.scopus.com/pages/publications/78650646518

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DO - 10.1364/AO.49.006834

M3 - 文章

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High-resolution terahertz reflective imaging and image restoration

Abstract

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