Physical mechanism of “slow light”
in stimulated Brillouin scattering
Valeri I. KOVALEV1,Nadezhda E. KOTOVA1,Robert G. HARRISON2,
Author information+
1.Department of Physics,
Heriot-Watt University, Edinburgh EH14 4AS, UK;P. N. Lebedev Physical
Institute, Russian Academy of Sciences, Moscow 119991, Russia; 2.Department of Physics,
Heriot-Watt University, Edinburgh EH14 4AS, UK;
Show less
History+
Published
05 Mar 2010
Issue Date
05 Mar 2010
Abstract
We show from analytical analysis of the basic stimulated Brillouin scattering (SBS) equations in the time domain that the SBS amplification process does not amplify an external Stokes pulse and therefore cannot induce group delay of the Stokes pulse as claimed in the literature. Rather, the delayed output Stokes pulse is the pump radiation reflected by the induced acoustic wave, the amplitude of which determines the rate of the amplification process and time delay of the pulse. The latter is predominantly a consequence of the SBS buildup process determined by the inertia of the acoustic wave excitation. Analytical solutions of the SBS equations in the frequency domain show that spectral broadening of the pump radiation leads to only negligible broadening of the SBS spectral bandwidth and so does not provide an effective means to achieve broadband pulse delay.
Valeri I. KOVALEV, Nadezhda E. KOTOVA, Robert G. HARRISON,.
Physical mechanism of “slow light”
in stimulated Brillouin scattering. Front. Optoelectron., 2010, 3(1): 22‒32 https://doi.org/10.1007/s12200-009-0079-8
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
This is a preview of subscription content, contact us for subscripton.
AI Summary 中Eng×
Note: Please note that the content below is AI-generated. Frontiers Journals website shall not be held liable for any consequences associated with the use of this content.