High Power CO Laser Application Study - Scaling Laws for the Propagation of Loosely Focused, Truncated Gaussian Beams; Final Technical Report Period Covering 15 July 1974 0 30 October 1975 NRTX 75-42R

Hawthorne, CA: Northrop Corporation, Northrop Research and Technology Center, High Power Laser Program Office, 1975. Presumed First Edition, First printing. Wraps. v, [1], I105, [1] pages. Tables. Figures. Ink correction to report number on title page. Staplebound. Number stamped on front cover. Ink mark on front cover. Minor discoloration on title page where there was an open section to show the report title. Northrop Grumman Corporation is an American global aerospace and defense technology company formed by Northrop's 1994 purchase of Grumman. The company was the fourth-largest arms trader in the world in 2017 with about 84% of all revenue coming from defense related activities. Northrop Grumman is made up of four main business sectors: Aerospace Systems, Mission Systems, Technology Services and Innovation Systems. It also ranks in the top ten military-friendly employers and top 50 companies for diversity. Northrop Grumman and its industry partners have won the Collier Trophy eight times, most recently for developing the Northrop Grumman X-47B which is the first unmanned, autonomous air system operating from an aircraft carrier. Scaling laws for the peak intensity profiles of cw truncated Gaussian beams propagating in the atmosphere have been developed. The scaling laws depend upon five nondimensional parameters, namely, modified distortion, Fresnel, slewing, absorption, and normalized range numbers. The predictions of the scaling laws are plotted against the date points generated by the propagation code. The scaling law predicts the intensity profiles fairly accurately. Plots of relative maximum intensity and its Z-location have been given to facilitate the use of the scaling equations. The variations of beam deflection into wind, intensity standard deviations, and the equivalent areas are plotted against the relative intensities. It is shown that relative intensity is the most important parameter, and the simple correlations describing beam deflection and equivalent areas as function of relative intensity can be obtained. Condition: Very Good.

Keywords: High Power Laser, CO Laser, Scaling Laws, Loosely Focused, Truncated Gaussian Beams, Fresnel, Nondimensional Parameters, Propagation Code, Beam Deflection, Relative Intensity

[Book #77472]

Price: $80.00

See all items by