0
LASER BEAM MOVEMENT

Wide-angle achromatic prism beam steering for infrared countermeasure applications

[+] Author Affiliations
Bradley D. Duncan

University of Dayton, Electro-Optics Program, 300 College Park, Dayton, Ohio?45469-0245 E-mail: brad@udayton.edu

Philip J. Bos

Kent State University, Liquid Crystal Institute, Materials Science Building, Kent, Ohio?44342

Vassili Sergan

California State University, Department of Physics and Astronomy, 6000 J Street, Sacramento, California?95819-6041

Opt. Eng. 42(4), 1038-1047 (Apr 01, 2003). doi:10.1117/1.1556393
History: Received Sep. 3, 2002; Revised Sep. 27, 2002; Accepted Sep. 27, 2002; Online April 01, 2003
Text Size: A A A

The design and analysis of achromatic doublet prisms for use in laser beam steering is presented. The geometric relationships describing the maximum steering angle are given, as are discussions of first- and second-order dispersion reduction. Infrared (IR) material alternatives and optimum IR material characteristics for wide-angle achromatic prism beam steering are also investigated. Sixteen materials in 120 different combinations have been examined to date. For midwave IR applications it is shown that the minimum dispersion currently achievable across the full 2 to 5 μm spectrum is 1.7816 mrad at an average maximum steering angle of 45 deg. This is accomplished using LiF/ZnS doublet prisms. Several issues related to the azimuth and elevation angles into which light is steered as a function of prism rotation angles are also presented. © 2003 Society of Photo-Optical Instrumentation Engineers.

Figures in this Article
© 2003 Society of Photo-Optical Instrumentation Engineers

Citation

Bradley D. Duncan ; Philip J. Bos and Vassili Sergan
"Wide-angle achromatic prism beam steering for infrared countermeasure applications", Opt. Eng. 42(4), 1038-1047 (Apr 01, 2003). ; http://dx.doi.org/10.1117/1.1556393


Access This Article
Sign In to Access Full Content
Please Wait... Processing your request... Please Wait.
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
 
Your Session has timed out. Please sign back in to continue.
Sign In to Access Full Content

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement

Buy this article ($18 for members, $25 for non-members).
Sign In