Large grain, low-dislocation, high-quality single crystals of various Pb-salt compounds have been grown reproducibly by the Horizontal Unseeded Vapor Growth (HUVG) technique. The Tunable Diode Lasers with better perfo...Large grain, low-dislocation, high-quality single crystals of various Pb-salt compounds have been grown reproducibly by the Horizontal Unseeded Vapor Growth (HUVG) technique. The Tunable Diode Lasers with better performance have been made with such crystals. The annealing feature, dislocations and diffusion in the crystals have also been investigated.展开更多
A portable infrared spectral radiance measurement apparatus without the cooling based on PbSe detectors is designed to measure the spectral radiance of the object in the wavelength range from 2.1 to 4.1μm. Cores Luxe...A portable infrared spectral radiance measurement apparatus without the cooling based on PbSe detectors is designed to measure the spectral radiance of the object in the wavelength range from 2.1 to 4.1μm. Cores Luxell 256 module is applied which integrates 256 pixel line array PbSe detectors, amplifiers, analog-to-digital convertors, and Universal Serial Bus output interface. Electric aperture is applied to eliminate the effect of temperature drift. Wavelength and response function of the apparatus is calibrated with the blackbody. Results show that the wavelength resolution is 10 nm. The relative error of measured spectral radiance is below 2.3%.展开更多
文摘Large grain, low-dislocation, high-quality single crystals of various Pb-salt compounds have been grown reproducibly by the Horizontal Unseeded Vapor Growth (HUVG) technique. The Tunable Diode Lasers with better performance have been made with such crystals. The annealing feature, dislocations and diffusion in the crystals have also been investigated.
基金supported by the National Natural Science Foundation of China under Grant No.61275095
文摘A portable infrared spectral radiance measurement apparatus without the cooling based on PbSe detectors is designed to measure the spectral radiance of the object in the wavelength range from 2.1 to 4.1μm. Cores Luxell 256 module is applied which integrates 256 pixel line array PbSe detectors, amplifiers, analog-to-digital convertors, and Universal Serial Bus output interface. Electric aperture is applied to eliminate the effect of temperature drift. Wavelength and response function of the apparatus is calibrated with the blackbody. Results show that the wavelength resolution is 10 nm. The relative error of measured spectral radiance is below 2.3%.
