Femtowatt incoherent image conversion from mid-infrared light to near-infrared light

被引：13

作者：

Huang, Nan ^{[1
]}

Liu, Hongjun ^{[1
,2
]}

Wang, Zhaolu ^{[1
]}

Han, Jing ^{[1
]}

Zhang, Shuan ^{[1
]}

机构：

[1] Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon Technol, Xian 710119, Peoples R China

[2] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China

来源：

LASER PHYSICS | 2017年 / 27卷 / 03期

基金：

中国国家自然科学基金;

关键词：

image upconversion; mid-infrared; incoherent; UP-CONVERSION; SPECTROSCOPY;

D O I：

10.1088/1555-6611/aa57db

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the experimental conversion imaging of an incoherent continuous-wave dim source from mid-infrared light to near-infrared light with a lowest input power of 31 femtowatt (fW). Incoherent mid-infrared images of light emission from a heat lamp bulb with an adjustable power supply at window wavelengths ranging from 2.9 mu m to 3.5 mu m are used for upconversion. The sum-frequency generation is realized in a laser cavity with the resonant wavelength of 1064 nm pumped by an LD at 806 nm built around a periodically poled lithium niobate (PPLN) crystal. The converted infrared image in the wavelength range similar to 785 nm with a resolution of about 120 x 70 is low-noise detected using a silicon-based camera. By optimizing the system parameters, the upconversion quantum efficiency is predicted to be 28% for correctly polarized, on-axis and phase-matching light.

引用

页码：1 / 5

页数：5

共 20 条

[1] SENSING Infrared image upconversion [J].