High energy laser propagation in various atmospheric conditions utilizing a new, accelerated scaling code
Fussman, Chris R.
Cohn, Keith R.
Colson, William B.
MetadataShow full item record
For this thesis, an atmospheric propagation code named ANCHOR (Atmospheric NPS Code for High Energy Laser Optical pRopagation) was developed and utilized to study the propagation of high energy lasers in various atmospheric conditions and for numerous laser configurations. The ANCHOR code accesses existing industry databases to obtain relevant optical properties for various atmospheres and then uses scaling laws to simulate laser propagation through the defined environments. ANCHOR accounts for the effects of atmospheric diffraction, turbulence, platform jitter and thermal blooming on the laser beam, and outputs on-target irradiance and power-in-the-bucket profiles for a wide range of laser wavelengths. Several known physical trends associated with laser propagation will be reproduced, and the results will be compared to the industry accepted propagation code Wavetrain. The results of ANCHOR studies will indicate that the 100 kW-class high energy laser can effectively engage slow-moving targets at ranges greater than five kilometers in clear weather by delivering enough energy to melt 0.1 liters of one millimeter-thick aluminum aircraft skin in five seconds. For hazy, turbulent, and rainy conditions, the laser can effectively engage targets from ranges closer than three kilometers, but reasonable dwell times are only achieved for ranges closer than two kilometers.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Corley, M.S.; Santiago, F.; T. Martinez; Agrawal, B.N. (2011);The Navy is interested in horizontal laser propagation studies in a maritime environment, near the ocean surface, for applications including imaging and high-energy laser propagation. The Naval Postgraduate School (NPS) ...
Blau, Joseph (2015);Building upon our past research into directed energy weapons and atmospheric propagation of high-energy laser (HEL) beams, we have analyzed the performance of a notional 30 kW to 50 kW HEL weapon with emission from a ...
Ng, Weisheng Joseph (Monterey, California: Naval Postgraduate School, 2015-12);Free Electron Lasers (FELs) are desirable for defense against a spectrum of threats, especially in the maritime domain, due to their all-electric nature, their wavelength tunability to atmospheric propagation sweet-spots, ...