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Mid-infrared upconversion imaging pumped by sub-nanosecond micro-cavity laser
Author(s): Lingwei Zhao; Lei Liu; Wei Zhao; Chuan Guo; Hongyan Wang; Weihong Hua
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Paper Abstract

Based on the polarization period of 22.67um magnesium-oxide-doped lithium niobate (MgO: PPLN) Crystal, a 4f midinfrared imaging system was constructed. The electronic enhanced charge-couple device (EMCCD) was used to receive the mid-infrared images to improve the sensitivity of the systerm. The resolution tablets of USAF 1951 were used to confirm the performance of the optical system. In this experiment, mid-infrared upconversion from 3412 nm to 3482 nm were achieved by changing the crystal temperature and the wavelength of the signal light. The upconversion imaging at 3482nm was attained by a silicon based CCD camera with the conversion efficiency of 3.8×10-6 and the resolution of 2.52/2 lp/mm.

Paper Details

Date Published: 29 March 2019
PDF: 5 pages
Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 1104607 (29 March 2019); doi: 10.1117/12.2523830
Show Author Affiliations
Lingwei Zhao, National Univ. of Defense Technology (China)
State Key Lab. of Pulsed Power Lab Technology (China)
Hunan Provincial Key Lab. of High Energy Laser Technology (China)
Lei Liu, National Univ. of Defense Technology (China)
State Key Lab. of Pulsed Power Lab Technology (China)
Hunan Provincial Key Lab. of High Energy Laser Technology (China)
Wei Zhao, National Univ. of Defense Technology (China)
State Key Lab. of Pulsed Power Lab Technology (China)
Hunan Provincial Key Lab. of High Energy Laser Technology (China)
Chuan Guo, National Univ. of Defense Technology (China)
Hongyan Wang, National Univ. of Defense Technology (China)
State Key Lab. of Pulsed Power Lab Technology (China)
Hunan Provincial Key Lab. of High Energy Laser Technology (China)
Weihong Hua, National Univ. of Defense Technology (China)
State Key Lab. of Pulsed Power Lab Technology (China)
Hunan Provincial Key Lab. of High Energy Laser Technology (China)


Published in SPIE Proceedings Vol. 11046:
Fifth International Symposium on Laser Interaction with Matter
YiJun Zhao, Editor(s)

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