Light propagation and magnon-photon coupling in optically dispersive magnetic media

Bittencourt, Victor A. S. V.; Liberal, Iñigo; Kusminskiy, Silvia Viola

doi:10.1103/physrevb.105.014409

Cited by 13 publications

(7 citation statements)

References 71 publications

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“…Given the ability to predict coupled strain-magnetization-EM wave dynamics, our computational model can be directly applied to simulate and design systems where mutual interactions among phonons, magnons, and photons are significant (a.k.a. cavity magnomechanics systems) [33][34][35][36] .…”

Section: Discussionmentioning

confidence: 99%

Dynamical phase-field model of cavity electromagnonic systems

Hu,

Zhuang,

Zhong

et al. 2023

Preprint

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Cavity electromagnonic system, which simultaneously consists of cavities for microwave photons, magnons (quanta of spin waves), and acoustic phonons, provides an exciting platform to achieve coherent energy transduction among different physical systems down to single quantum level. Here we report a dynamical phase-field model that allows simulating the coupled dynamics of the electromagnetic waves, magnetization, and strain in 3D electromagnonic systems which have previously not been considered together. As examples of application, we computationally demonstrate the excitation of hybrid magnon-photon modes (magnon polaritons), Floquet-induced magnonic Aulter-Townes splitting, dynamical energy exchange (Rabi oscillation) and relative phase control (Ramsey interference) between the two magnon polariton modes. The simulation results are well consistent with analytical calculations based on Floquet Hamiltonian theory. With the capability to predict coupling strength, dissipation rates, and temporal evolution of photon/magnon/phonon mode profiles using only fundamental materials parameters as inputs, the present dynamical phase-field model represents a critically needed computational tool to guide and accelerate the fabrication of the cavity electromagnonic system and the design of operating conditions for applications in quantum sensing, transduction, and communication.

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Section: Discussionmentioning

confidence: 99%

Dynamical phase-field model of cavity electromagnonic systems

Hu,

Zhuang,

Zhong

et al. 2023

Preprint

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“…Along this line it was recently found that dispersion engineering around the ENZ frequency strengthens magnon−photon coupling. 53,54 Strong opto-magnonic coupling would allow for quantum state transfer in hybrid quantum systems. This is a recent and promising direction for NZI materials, and both fundamental and practical implementation advances will be needed to assess the technological potential of NZI media for opto-magnonics.…”

Section: Emission In Nzi Mediamentioning

confidence: 99%

New Horizons in Near-Zero Refractive Index Photonics and Hyperbolic Metamaterials

Lobet,

Kinsey,

Liberal

et al. 2023

ACS Photonics

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The engineering of the spatial and temporal properties of both the electric permittivity and the refractive index of materials is at the core of photonics. When vanishing to zero, those two variables provide efficient knobs to control light–matter interactions. This Perspective aims at providing an overview of the state of the art and the challenges in emerging research areas where the use of near-zero refractive index and hyperbolic metamaterials is pivotal, in particular, light and thermal emission, nonlinear optics, sensing applications, and time-varying photonics.

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“…A variety of wave phenomena emerges from the different physics of ENZ media, examples including supercoupling [5,6] and ideal fluid flow [7,8], geometry-invariant resonators [9], directive emission [10,11], photonic doping [12], nonradiating modes [13][14][15] and guided modes with a flat dispersion profile [16][17][18], just to name a few. Moreover, ENZ media intrinsically enhances light-matter interactions, as it is the case for nonlinear optics [19][20][21][22][23], electrical [24,25] and optical [26,27] modulation, spontaneous emission [28][29][30][31], magnon-optical photon coupling [32,33], entanglement generation [34,35], and light concentration on ultra-thin metallic films for thermal emitters [36,37] and optoelectronic [38] devices.…”

Section: Introductionmentioning

confidence: 99%

Addressing the impact of surface roughness on epsilon-near-zero substrates

Navajas¹,

Pérez-Escudero²,

Liberal³

2023

Preprint

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Epsilon-near-zero (ENZ) media have been very actively investigated due to their unconventional wave phenomena and strengthened nonlinear response. However, the technological impact of ENZ media will be determined by the quality of realistic ENZ materials, including material loss and surface roughness. Here, we provide a comprehensive experimental study of the impact of surface roughness on ENZ substrates. Using silicon carbide (SiC) substrates with artificially induced roughness, we analyze samples whose roughness ranges from a few to hundreds of nanometer size-scales. It is concluded that ENZ substrates with roughness in the few nanometer scale are negatively affected by coupling to longitudinal phonons and strong ENZ fields normal to the surface. On the other hand, when the roughness is in the hundreds of nanometer scale, the ENZ band is found to be more robust than dielectric and surface phonon polariton (SPhP) bands.

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Light propagation and magnon-photon coupling in optically dispersive magnetic media

Cited by 13 publications

References 71 publications

Dynamical phase-field model of cavity electromagnonic systems

Dynamical phase-field model of cavity electromagnonic systems

New Horizons in Near-Zero Refractive Index Photonics and Hyperbolic Metamaterials

Addressing the impact of surface roughness on epsilon-near-zero substrates

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