2026-04-22T04:30:18Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/479622021-08-23T20:47:43Zcom_10324_1191com_10324_931com_10324_894col_10324_1379

Chamorro Posada, Pedro Bengoechea de la Llera, J. 2021-08-23T07:30:05Z 2021-08-23T07:30:05Z 2021 Optical Fiber Technology, 2021, vol. 65, 102592 1068-5200 https://uvadoc.uva.es/handle/10324/47962 10.1016/j.yofte.2021.102592 Producción Científica In this work, we address the phonon dynamics in the stimulated Brillouin scattering process. There exists a wide consensus on the fact that the slowly varying approximation for the acoustic field cannot be invoked in the transient subphonon regime. We present an analysis where we set the precise limits of validity of this approximation. Our study shows that the resonant behavior of the Stokes interaction permits, in general, a first order treatment of this process in the theoretical analysis of current practical applications. An improved-accuracy first order model is also put forward. Numerical calculations are used to support our conclusions. Junta de Castilla y León (project VA296P18) application/pdf eng Elsevier info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ © 2021 The Authors Attribution-NonCommercial-NoDerivatives 4.0 Internacional Brillouin scattering Dispersión de Brillouin Nonlinear optics Óptica no lineal On the first order dynamics of subphonon lifetime transient stimulated Brillouin scattering info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S1068520021001413?via%3Dihub SI