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13 March 2024 Enhanced stimulated Brillouin scattering in silicon slot subwavelength waveguides
David González-Andrade, Paula Nuño Ruano, Jianhao Zhang, Eric Cassan, Delphine Marris-Morini, Laurent Vivien, Norberto Daniel Lanzillotti-Kimura, Carlos Alonso-Ramos
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Proceedings Volume PC12889, Integrated Optics: Devices, Materials, and Technologies XXVIII; PC128890N (2024) https://doi.org/10.1117/12.3001719
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
The patterning of silicon with a period at the subwavelength scale has opened new degrees of freedom to control not only the propagation of light but also of sound. In this invited contribution, we will present our latest results on subwavelength-engineered silicon optomechanical waveguides. We harness subwavelength nanostructuration in a silicon slot waveguide to shape the distribution of the optical mode and maximize the coupling with the mechanical mode. Based on this approach, we demonstrate an enhanced Brillouin gain and a high tunability of the mechanical frequency.
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David González-Andrade, Paula Nuño Ruano, Jianhao Zhang, Eric Cassan, Delphine Marris-Morini, Laurent Vivien, Norberto Daniel Lanzillotti-Kimura, and Carlos Alonso-Ramos "Enhanced stimulated Brillouin scattering in silicon slot subwavelength waveguides", Proc. SPIE PC12889, Integrated Optics: Devices, Materials, and Technologies XXVIII, PC128890N (13 March 2024); https://doi.org/10.1117/12.3001719
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KEYWORDS
Silicon
Waveguides
Scattering
Phonons
Optical communications
Optical fibers
Optical lithography
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