Search Results - "Rao, J. W."
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1
Nonreciprocity and Unidirectional Invisibility in Cavity Magnonics
Published in Physical review letters (18-09-2019)“…We reveal the cooperative effect of coherent and dissipative magnon-photon couplings in an open cavity magnonic system, which leads to nonreciprocity with a…”
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2
Level Attraction Due to Dissipative Magnon-Photon Coupling
Published in Physical review letters (28-09-2018)“…We report dissipative magnon-photon coupling caused by the cavity Lenz effect, where the magnons in a magnet induce a rf current in the cavity, leading to a…”
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3
Unconventional Singularity in Anti-Parity-Time Symmetric Cavity Magnonics
Published in Physical review letters (01-10-2020)“…By engineering an anti-parity-time (anti-PT ) symmetric cavity magnonics system with precise eigenspace controllability, we observe two different singularities…”
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4
Unveiling a Pump-Induced Magnon Mode via Its Strong Interaction with Walker Modes
Published in Physical review letters (27-01-2023)“…We observe a power-dependent anticrossing of Walker spin-wave modes under microwave pumping when a ferrimagnet is placed in a microwave waveguide that does not…”
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5
Non-ergodic extended regime in random matrix ensembles: insights from eigenvalue spectra
Published in Scientific reports (12-01-2023)“…The non-ergodic extended (NEE) regime in physical and random matrix (RM) models has attracted a lot of attention in recent years. Formally, NEE regime is…”
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6
Coherent Microwave Emission of Gain-Driven Polaritons
Published in Physical review letters (07-04-2023)“…By developing a gain-embedded cavity magnonics platform, we create a gain-driven polariton (GDP) that is activated by an amplified electromagnetic field…”
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7
Non-Hermitian control between absorption and transparency in perfect zero-reflection magnonics
Published in Nature communications (10-06-2023)“…Recent works in metamaterials and transformation optics have demonstrated exotic properties in a number of open systems, including perfect…”
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8
Analogue of dynamic Hall effect in cavity magnon polariton system and coherently controlled logic device
Published in Nature communications (03-07-2019)“…Cavity magnon polaritons are mixed quasiparticles that arise from the strong coupling between cavity photons and quantized magnons. Combining high-speed…”
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9
Cooperative polariton dynamics in feedback-coupled cavities
Published in Nature communications (10-11-2017)“…The emerging field of cavity spintronics utilizes the cavity magnon polariton (CMP) induced by magnon Rabi oscillations. In contrast to a single-spin quantum…”
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10
Interferometric control of magnon-induced nearly perfect absorption in cavity magnonics
Published in Nature communications (26-03-2021)“…The perfect absorption of electromagnetic waves has promoted many applications, including photovoltaics, radar cloaking, and molecular detection. Unlike…”
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11
Level attraction and level repulsion of magnon coupled with a cavity anti-resonance
Published in New journal of physics (12-06-2019)“…We report on coherent and dissipative coupling between a magnon mode and an anti-resonance of transmission in a cylindrical microwave cavity. By effectively…”
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12
Voltage control of cavity magnon polariton
Published in Applied physics letters (18-07-2016)“…We have experimentally investigated the microwave transmission of the cavity-magnon-polariton (CMP) generated by integrating a low damping magnetic insulator…”
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13
Influence of stripline coupling on the magnetostatic mode line width of an yttrium-iron-garnet sphere
Published in AIP advances (01-07-2018)“…We study the effect of stripline coupling on the damping of magnetostatic modes in an yttrium-iron-garnet sphere. Both the magnetostatic dispersion and line…”
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14
Manipulation of the zero-damping conditions and unidirectional invisibility in cavity magnonics
Published in Applied physics letters (11-05-2020)“…In this paper, we report a cavity magnonic system consisting of a split-ring resonator coupled with a yttrium iron garnet sphere, in which both coherent and…”
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15
Characterization of the non-resonant radiation damping in coupled cavity photon magnon system
Published in Applied physics letters (26-06-2017)“…We have experimentally investigated the non-resonant radiation damping in the coupled cavity photon-magnon system in addition to the resonant radiation damping…”
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16
Spin number dependent dissipative coupling strength
Published in AIP advances (01-11-2019)“…A system consisting of a yttrium iron garnet (YIG) sphere coupled to a 1D circular-rectangular cavity is tuned between level repulsion and attraction by…”
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17
Unveiling a Pump-Induced Magnon Mode via its Strong Interaction with Walker Modes
Published 05-08-2023“…We observe a power-dependent anticrossing of Walker spin-wave modes under microwave pumping when a ferrimagnet is placed in a microwave waveguide that does not…”
Get full text
Journal Article -
18
Coherent Microwave Emission of a Gain-Driven Polariton
Published 15-02-2023“…By developing a gain-embedded cavity magnonics platform, we create gain-driven polariton (GDP) that is activated by an amplified electromagnetic field…”
Get full text
Journal Article -
19
Non-Hermitian topological magnonics
Published in Physics reports (22-04-2024)“…Dissipation in mechanics, optics, acoustics, and electronic circuits is nowadays recognized to be not always detrimental but can be exploited to achieve…”
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20
Unconventional Singularity in Anti-Parity-Time Symmetric Cavity Magnonics
Published 08-09-2020“…Phys. Rev. Lett. 125, 147202 (2020) By engineering an anti-parity-time (anti-PT) symmetric cavity magnonics system with precise eigenspace controllability, we…”
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