Lecoeuche, V. and Webb, D.J. and Pannell, C.N. and Jackson, D.A. (2000) Stimulated Brillouin scattering using short probe pulses: An unsuspected transient response with advantageous consequences in distributed sensing at high spatial resolution. Proceedings of The Society of Photo-optical Instrumentation Engineers (SPIE), 4087 . pp. 1163-1166. ISSN 0277-786X.
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We perform numerical simulations on a model describing a Brillouin based temperature and strain sensor, testing its response when probed with relatively short pulses. Experimental results were recently published that showed a broadening of the Brillouin loss curve when the probe pulse duration is reduced, followed by a sudden and rather surprising reduction of the linewidth when the pulse duration gets shorter than the acoustic relaxation time. Our study reveals the processes responsible for this behavior. We give a clear physical insight into the problem, allowing us to define of the best experimental conditions required to take advantage of this effect.
|Additional information:||Conference Information: 4th International Conference on Applications of Photonic Technology (ICAPT 2000) QUEBEC CITY, CANADA, JUN 12-16, 2000 Proceedings Paper|
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences|
|Depositing User:||O.O. Odanye|
|Date Deposited:||17 Apr 2009 13:58|
|Last Modified:||17 Jul 2012 10:14|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/16302 (The current URI for this page, for reference purposes)|
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