Coherent pumping of high-momentum magnons by light

Fran Šimić; Sanchar Sharma; Yaroslav M. Blanter; Gerrit E.W. Bauer

doi:10.1103/PhysRevB.101.100401

Coherent pumping of high-momentum magnons by light

Fran Šimić, Sanchar Sharma^*, Yaroslav M. Blanter, Gerrit E.W. Bauer

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

We propose and model a method to excite a large number of coherent magnons with high momentum in optical cavities. This is achieved by two counterpropagating optical modes that are detuned by the frequency of a selected magnon, similar to stimulated Raman scattering. In submillimeter-size yttrium iron garnet spheres, a milliwatt laser input power generates 106-108 coherent magnons. The large magnon population enhances Brillouin light scattering, a probe suitable to access their quantum properties.

Original language	English
Article number	100401
Number of pages	5
Journal	Physical Review B
Volume	101
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.101.100401
Publication status	Published - 2020

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10.1103/PhysRevB.101.100401

PhysRevB.101.100401(1)Final published version, 266 KB

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abstract = "We propose and model a method to excite a large number of coherent magnons with high momentum in optical cavities. This is achieved by two counterpropagating optical modes that are detuned by the frequency of a selected magnon, similar to stimulated Raman scattering. In submillimeter-size yttrium iron garnet spheres, a milliwatt laser input power generates 106-108 coherent magnons. The large magnon population enhances Brillouin light scattering, a probe suitable to access their quantum properties.",

author = "Fran {\v S}imi{\'c} and Sanchar Sharma and Blanter, {Yaroslav M.} and Bauer, {Gerrit E.W.}",

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AU - Sharma, Sanchar

AU - Blanter, Yaroslav M.

AU - Bauer, Gerrit E.W.

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AB - We propose and model a method to excite a large number of coherent magnons with high momentum in optical cavities. This is achieved by two counterpropagating optical modes that are detuned by the frequency of a selected magnon, similar to stimulated Raman scattering. In submillimeter-size yttrium iron garnet spheres, a milliwatt laser input power generates 106-108 coherent magnons. The large magnon population enhances Brillouin light scattering, a probe suitable to access their quantum properties.

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Coherent pumping of high-momentum magnons by light

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