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Surface acoustic wave stimulated Brillouin scattering in thin-film lithium niobate waveguides

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arxiv 2311.14697 v2 pith:KSACIKYG submitted 2023-11-09 physics.optics

Kaixuan Ye , Hanke Feng , Yvan Klaver , Akshay Keloth , Akhileshwar Mishra , Cheng Wang , David Marpaung This is my paper
classification physics.optics
keywords brillouinacousticlithiumniobatescatteringstimulatedsurfacethin-film
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abstract

We report the first-ever experimental observation of backward stimulated Brillouin scattering (SBS) in thin-film lithium niobate (TFLN) waveguides. The peak Brillouin gain coefficient of the z-cut LN waveguide with a crystal rotation angle of 20$^{\circ}$ is as high as 84.9m$^{-1}$W$^{-1}$, facilitated by surface acoustic waves (SAW) at 8.06GHz.

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