Title :
Two-dimensional infrared imaging by frequency upconversion at few-photon level
Author :
Huang, Kun ; Gu, Xiaorong ; Pan, Haifeng ; Wu, E. ; Zeng, Heping
Author_Institution :
State Key Lab. of Precision Spectrosc., East China Normal Univ., Shanghai, China
Abstract :
We demonstrated few-photon-level infrared imaging at 1040 nm by coincidence frequency upconversion with a high conversion efficiency of 31%. The full imaging was implemented without any scanning devices, thus gaining in simplicity and speed.
Keywords :
infrared imaging; multiphoton processes; optical frequency conversion; coincidence frequency upconversion; conversion efficiency; few-photon level; scanning devices; two-dimensional infrared imaging; wavelength 1040 nm; Crystals; Infrared imaging; Laser beams; Laser excitation; Noise measurement; Photonics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
