Journal article
Upconversion imaging using an all-fiber supercontinuum source
Department of Photonics Engineering, Technical University of Denmark1
NKT Group2
Department of Physics, Technical University of Denmark3
Optical Sensor Technology, Department of Photonics Engineering, Technical University of Denmark4
Risø National Laboratory for Sustainable Energy, Technical University of Denmark5
In this Letter, the first demonstration, to the best of our knowledge, of pulsed upconversion imaging using supercontinuum light is presented. A mid-infrared (IR) imaging system was built by combining a mid-IR supercontinuum source emitting between 1.8 and 2.6 mu m with upconversion detection. The infrared signal is used to probe a sample and mixed with a synchronized 1550 nm laser pulse inside a lithium niobate (LiNbO3) crystal.
The signal is thus upconverted to the 860-970 nm range and acquired on a standard silicon CCD array at a rate of 22 frames per second. In our implementation, spatial features in the sample plane as small as 55 mu m could be resolved. (C) 2016 Optical Society of America
Language: | English |
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Year: | 2016 |
Pages: | 2466-2469 |
ISSN: | 15394794 and 01469592 |
Types: | Journal article |
DOI: | 10.1364/OL.41.002466 |
ORCIDs: | Tidemand-Lichtenberg, Peter and Pedersen, Christian |