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Behunin RO, Kharel P, Renninger WH, et al. Engineering dissipation with phononic spectral hole burning. Nat Mater. 2016;16(3):315-321doi: 10.1038/nmat4819.
Behunin, R. O., Kharel, P., Renninger, W. H., & Rakich, P. T. (2017). Engineering dissipation with phononic spectral hole burning. Nature materials, 16(3), 315-321. https://doi.org/10.1038/nmat4819
Behunin, R O, et al. "Engineering dissipation with phononic spectral hole burning." Nature materials vol. 16,3 (2017): 315-321. doi: https://doi.org/10.1038/nmat4819
Behunin RO, Kharel P, Renninger WH, Rakich PT. Engineering dissipation with phononic spectral hole burning. Nat Mater. 2017 Mar;16(3):315-321. doi: 10.1038/nmat4819. Epub 2016 Dec 12. PMID: 27941809.
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Nat Mater. 2017 Mar;16(3):315-321. doi: 10.1038/nmat4819. Epub 2016 Dec 12.

Engineering dissipation with phononic spectral hole burning.

Nature materials

R O Behunin, P Kharel, W H Renninger, P T Rakich

Affiliations

  1. Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA.

PMID: 27941809 DOI: 10.1038/nmat4819

Abstract

Optomechanics, nano-electromechanics, and integrated photonics have brought about a renaissance in phononic device physics and technology. Central to this advance are devices and materials supporting ultra-long-lived photonic and phononic excitations that enable novel regimes of classical and quantum dynamics based on tailorable photon-phonon coupling. Silica-based devices have been at the forefront of such innovations for their ability to support optical excitations persisting for nearly 1 billion cycles, and for their low optical nonlinearity. While acoustic phonon modes can persist for a similar number of cycles in crystalline solids at cryogenic temperatures, it has not been possible to achieve such performance in silica, as silica becomes acoustically opaque at low temperatures. We demonstrate that these intrinsic forms of phonon dissipation are greatly reduced (by >90%) by nonlinear saturation using continuous drive fields of disparate frequencies. The result is a form of steady-state phononic spectral hole burning that produces a wideband transparency window with optically generated phonon fields of modest (nW) powers. We developed a simple model that explains both dissipative and dispersive changes produced by phononic saturation. Our studies, conducted in a microscale device, represent an important step towards engineerable phonon dynamics on demand and the use of glasses as low-loss phononic media.

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