Suppression of stimulated rotational Raman scattering over long air paths via controlling the polarization state. (20th March 2015)

• Record Type: Journal Article
• Authors: Feng, B.; Fan, X.M.; Lu, Z.W.; Lin, D.Y.; Yang, F.; Wang, Y.L.
• Is Part Of: Laser and particle beams. Volume 33:Number 2(2015)
• Page Start: 169
• Page End: 173
• Publication Date: 2015-03-20
• Subjects: Laser beams -- Periodicals; Particle beams -- Periodicals; 535.5
• DOI: 10.1017/S0263034615000245
• Languages: English
• ISSNs: 0263-0346

Abstract

<abstract abstract-type="normal"> <title>Abstract</title> <p>Stimulated rotational Raman scattering (SRRS) limits the effective transmission distances of the high-energy and high-power laser pulses in laser–fusion systems and other applications. A simple and practical method of suppressing SRRS process by controlling the polarization direction of Stokes light is proposed. For a narrowband, linearly polarized, flat-topped laser pulse of 351 nm with intensity of 2 GW/cm² and width of 3 ns, the SRRS threshold distance in air is lengthened to 30.0 m from 16.2 m easily using the method. Simulation results demonstrate that the method is also applicable for broadband laser.</p> </abstract>