the "laser standoff chemical detector" research program

Meanwhile, the U.S. has also developed, tested the use of frequency-agile CO2 laser and advanced laser radar system detection algorithm. Accordance with the "laser standoff chemical detector" research program, the Army Edgewood Research, Engineering and Development Center in cooperation with the Hughes Aircraft developed the tunable sealed-off CO2 laser frequency agility. The laser pulse repetition frequency of 200Hz, 40% duty cycle, input power less than 1kW, including 9P44 lines in the spectra, including all available on more than 100mJ energy. The laser developed using two laser radar systems, the use of 25.4cm in diameter, with terrain mapping mode, detection range up to 10km. One of the co-operation with France for research use, and another for the Air Force Phillips Laboratory, Los Alamos National Laboratory ? airborne laser radar collaborative research. 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.