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Title: The underwater propagation of high-power pulsed and continuous-wave visible lasers : non-linear effects and a solid-state beam manipulation tool for imaging applications
Author: Slater, Thor
ISNI:       0000 0001 3417 0305
Awarding Body: Loughborough University
Current Institution: Loughborough University
Date of Award: 2000
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Underwater optics is a subject area with many applications from vision to remote sensing. Most have traditionally suffered from a limited range capability, despite advances in compact laser sources and beam steering technology. One reason for this is a lack of fundamental data concerning the propagation characteristics of high-power cw and pulsed beams through turbid media at the distances required. This project was designed to address that shortcoming by investigating two non-linear effects of high-power lasers underwater: thermal lensing and stimulated Raman scattering (SRS). A novel test facility was designed and attenuation measurements made at pathlengths up to 27m, using an array of mirrors, with argon ion (4.5W, 514.5nm) and Nd:YAG (140mJ, 532nm) lasers.
Supervisor: Not available Sponsor: DERA
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available