Waveguide cavity optomagnonics for microwave-to-optics conversion

Zhu, Na; Zhang, Xufeng; Han, Xu; Zou, Chang‐Ling; Zhong, Changchun; Wang, Chiao-Hsuan; Jiang, Liang; Tang, Hong X.

doi:10.1364/optica.397967

Cited by 124 publications

(63 citation statements)

References 57 publications

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“…1 b. and hence, plays an especially important role in the mechanics of ferromagnet-based microwave cavity experiments 44 – 46 . The impact of the phase noise on is non-trivial, since, in our earlier parametric studies, performed in the presence of an additional secondary frequency 36 we did not observe such an effect, although we did predict and demonstrate an increase in the threshold field.…”

Section: Discussionmentioning

confidence: 99%

Effective phase noise considerations in magnon based parametric excitations

Venugopal

Victora

2021

Sci Rep

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Magnon-phase is an important entity in the parametric processes involving magnons, yet the general qualitative and quantitative consequences of the phase-noise on nonlinear properties remain far from understood. In the current simulation-based theoretical study, we explore the direct impact the phase-noise has on non-linearity. We use analytical techniques usually employed in the study of hydrodynamics to explain the magnon-based nonlinear phenomena. The behavior of the threshold-field and growth rate of the magnons in the presence of Gaussian phase-noise is analytically predicted. These predictions are verified by micromagnetic simulations. Such results are of crucial importance in the design and engineering of both traditional and futuristic devices.

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Section: Discussionmentioning

confidence: 99%

Effective phase noise considerations in magnon based parametric excitations

Venugopal

Victora

2021

Sci Rep

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“…The converter discussed here involves an optical resonator interacting with the W-band signal of interest, as well as with a monochromatic optical carrier. The microwave signal is upconverted to the optical frequency domain and is processed optically [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. Since the optical parts have small sizes and are characterized by low attenuation and negligible thermal noise, the entire photonic system has much smaller dimensions, as well as superior performance, compared to a pure electronic implementation.…”

Section: Introductionmentioning

confidence: 99%

W-Band Photonic Receiver for Compact Cloud Radars

Strekalov

Majurec

Matsko

et al. 2022

Sensors

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We introduce an RF-photonics receiver concept enabling the next generation of ultra-compact millimeter wave radars suitable for cloud and precipitation profiling, planetary boundary layer observations, altimetry and surface scattering measurements. The RF-photonics receiver architecture offers some compelling advantages over traditional electronic implementations, including a reduced number of components and interfaces, leading to reduced size, weight and power (SWaP), as well as lower system noise, leading to improved sensitivity. Low instrument SWaP with increased sensitivity makes this approach particularly attractive for compact space-borne radars. We study the photonic receiver front-end both analytically and numerically and predict the feasibility of the greater than unity photonic gain and lower than ambient effective noise temperature of the device. The receiver design is optimized for W-band (94 GHz) radars, which are generally assessed to be the primary means for observing clouds in the free troposphere as well as planetary boundary layer from space.

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“…In recent years, yttrium iron garnet (YIG) material, as an excellent ferrimagnetic material with high spin density(about 4.22×10 −27 m −3 ) and low dissipation rate(about 1 MHz), has attracted considerable attention [1,2,3]. Moreover, YIG material is ferromagnetic at both cryogenic [4,5,6] and room temperature [7] because its Curie temperature is about 559K.…”

Section: Introductionmentioning

confidence: 99%

Squeezed driving induced entanglement and squeezing among cavity modes and magnon mode in a magnon-cavity QED system

Zhao¹,

Xu²,

Xie³

et al. 2022

Preprint

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We propose a scheme to generate entanglement between two cavity modes and squeeze magnon mode in a magnoncavity QED system, where the two microwave cavity modes are coupled with a massive yttrium iron garnet (YIG) sphere through magnetic dipole interaction. The nonlinearity used in our system originates from a squeezed driving via parametric down-conversion process, which is the reason to cause entanglement and squeezing. By using the mean field approximation and employing experimentally feasible parameters, we demonstrate that the system shows zero entanglement and squeezing without squeezed driving. Meanwhile, our QED system denotes that the entanglement between squeezed cavity mode and magnon mode can be transferred to the other cavity mode and magnon mode via magnon-cavity coupling interaction, and then the two cavity modes get entangled. A genuinely tripartite entangled state is formed. We also show that magnon mode can be prepared in a squeezed state via magnon-cavity beam-splitter interaction, which is as a result of the squeezed field. Moreover, we show that it is a good way to enhance entanglement and squeezing by increasing the nonlinear gain coefficient of squeezed driving. Our results denote that magnon-cavity QED system is a powerful platform for studying macroscopic quantum phenomena, which illustrates a new method to photon-photon entanglement and magnon squeezing.

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Waveguide cavity optomagnonics for microwave-to-optics conversion

Cited by 124 publications

References 57 publications

Effective phase noise considerations in magnon based parametric excitations

Effective phase noise considerations in magnon based parametric excitations

W-Band Photonic Receiver for Compact Cloud Radars

Squeezed driving induced entanglement and squeezing among cavity modes and magnon mode in a magnon-cavity QED system

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