a broadband detector HgCdTe detectors

Infrared transmitter receiver mounted on a launch window on the KC-135 aircraft carried out a series of flight test, range of 20 ~ 50km. The second phase began in 1997, the development of the use of coherent laser radar detection theory. The radar uses the same transmitter, but adds a wavelength-agile local oscillator, and replaced with a broadband detector HgCdTe detectors. According to the plan, should be the end of the flight experiment in 1997. U.S. Department of Energy's "laser-ask spread of material by chemical analysis" program, the initial goal is to detect the spread of nuclear weapons, but then expanded to include detection of chemical and biological warfare agents, the development of laser-based remote sensing chemical diffusion material and determine the characteristics the system. ? in accordance with the plan Los Alamos National Laboratory is responsible for differential absorption lidar development, evaluation of high-repetition-rate, low-energy pulsed laser's ability to stabilize the laser spot, the use of hyperspectral remote sensing data to identify the chemical composition of gas mixtures of chemical measurement analysis. The  laser pointer  factory will rebuild the workshop of manufacturing  laser pointer . Emitter is one of the most important parts of laser pointer The emitter is one of parts of  laser pointer . Germany Hungrian company developed a VTB-1-based remote sensing of chemical warfare agent sensor. The sensor uses two in 9 ~ 11 (m between about 40 adjustable frequency continuous wave CO2 laser, the use of differential absorption principle to work in the Nd: YAG laser radar, the U.S. Los Alamos National Laboratory in accordance with ? long-range standoff biological warfare agent detection system plan, the construction of the three systems, to rapidly form a temporary biological warfare agent detection capabilities. the system by measuring the elastic backscattering, biological warfare agents to provide the concentration of aerosol cloud from the information and track it. standoff distance detection system of biological warfare agents, the use of pulse energy 420mJ, 20Hz pulse repetition frequency of Nd: YAG laser and a 48.3cm and 8.13cm parabolic primary mirror of the Cassegrain secondary mirror telescope, with silicon avalanche photodiode to detect the echo energy, and to perform signal processing on the machine the whole system weight 590kg, volume of 3m3, installed in the UH-60 helicopter. The emitter of  laser pointer  cannot be easily replaced.