Observation of indirect parallel pumping of magneto-elastic modes in layered YIG/GGG structures |
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Authors: | CL Ordóñez-Romero OV Kolokoltsev N Qureshi |
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Institution: | a Centro de Ciencias Aplicadas y Desarrollo Tecnológico (CCADET), Universidad Nacional Autónoma de México (UNAM), Mexico b Universidad Autonoma del Estado de Morelos (UAEM), Av. Universidad 1001, Cuernavaca 62209, Mor., Mexico |
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Abstract: | In this work we report new experimental results on nonlinear excitation of magnetoelastic (ME) modes in layered YIG/GGG waveguide structures at GHz frequencies, obtained by a guided-wave light scattering technique. It is shown that the fundamental spin-dipole wave (SDW) mode induces a secondary microwave field at double frequency that can efficiently excite shear elastic modes of the structure. The distinctive feature of a mechanism for ME coupling proposed is that it is free from the selection rules and provides continuous excitation of elastic modes within a wide frequency range by means of the standard microstripe line excitation system. |
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Keywords: | 72 55 +s 75 70 -i 75 80 +q 78 20 Ls 43 35 Rw |
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