The school plans to purchase more laser pointer as the gift

The school plans to purchase more laser pointer as the gift.
Since then, according to the joint armed forces alert and identification of chemical laser radar program, developed for fixed facilities and shipboard applications, the laser can be a large area surveillance radar system. The system is the use of differential absorption and differential scattering lidar range resolution laser radar mode, you can scan the atmosphere and surface, to detect chemical vapors and airborne liquids and particles, using the pulse repetition frequency of 100Hz, 1J-level laser and 61cm optical system, to hemispheric scan mode, the distance can be achieved in 5 ~ 7km range resolution. Use of higher pulse energy and greater optical system, the role of distance up to 20km. Is currently manufacturing and testing laboratory-type equipment, the same background recognition algorithm development and large-scale surveillance algorithm with variable background. U.S. Air Force carried out airborne long-range detection of chemical warfare agents, the goal is to develop the role of distance more than 50km to CO2 laser-based differential absorption lidar. The first phase of a simple direct detection method. The laser pointer company will explore the American market.
Transmitter receiver includes work in the 9 ~ 11μm band, the output energy 4J, 30Hz repetition rate CO2 laser wavelength-agile, 35cm aperture telescope, the optical stability platform, and PV 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 .