Coherent multi-mode conversion from microwave to optical wave via a
magnon-cavity hybrid system
- URL: http://arxiv.org/abs/2007.15299v1
- Date: Thu, 30 Jul 2020 08:24:39 GMT
- Title: Coherent multi-mode conversion from microwave to optical wave via a
magnon-cavity hybrid system
- Authors: Yong Sup Ihn, Su-Yong Lee, Dongkyu Kim, Sin Hyuk Yim, and Zaeill Kim
- Abstract summary: Multi-mode enabled system is essential for practical applications.
We experimentally demonstrate coherent multi-mode conversion from the microwave to optical wave via collective spin excitation.
It is expected to be valuable for designing a magnon hybrid system that can be used for coherent conversion between microwave and optical photons.
- Score: 0.49213071634447486
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Coherent conversion from microwave to optical wave opens new research avenues
towards long distant quantum network covering quantum communication, computing,
and sensing out of the laboratory. Especially multi-mode enabled system is
essential for practical applications. Here we experimentally demonstrate
coherent multi-mode conversion from the microwave to optical wave via
collective spin excitation in a single crystal yttrium iron garnet (YIG,
Y3Fe5O12) which is strongly coupled to a microwave cavity mode in a
three-dimensional rectangular cavity. Expanding collective spin excitation mode
of our magnon-cavity hybrid system from Kittel to multi magnetostatic modes, we
verify that the size of YIG sphere predominantly plays a crucial role for the
microwave-to-optical multi-mode conversion efficiency at resonant conditions.
We also find that the coupling strength between multi magnetostatic modes and a
cavity mode is manipulated by the position of a YIG inside the cavity. It is
expected to be valuable for designing a magnon hybrid system that can be used
for coherent conversion between microwave and optical photons.
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