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

On the first order dynamics of subphonon lifetime transient stimulated Brillouin scattering Chamorro Posada, Pedro Bengoechea de la Llera, J. Brillouin scattering Dispersión de Brillouin Nonlinear optics Óptica no lineal 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) 2021-08-23T07:30:05Z 2021-08-23T07:30:05Z 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Optical Fiber Technology, 2021, vol. 65, 102592 1068-5200 https://uvadoc.uva.es/handle/10324/47962 10.1016/j.yofte.2021.102592 eng https://www.sciencedirect.com/science/article/pii/S1068520021001413?via%3Dihub Attribution-NonCommercial-NoDerivatives 4.0 Internacional info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ © 2021 The Authors application/pdf Elsevier https://uvadoc.uva.es/bitstream/10324/47962/4/On-the-first-order-dynamics.pdf.jpg Hispana TEXT http://creativecommons.org/licenses/by-nc-nd/4.0/ UVaDOC. Repositorio Documental de la Universidad de Valladolid https://uvadoc.uva.es/handle/10324/47962