Nonlinear Circular Dichroism in Mie-Resonant Nanoparticle Dimers

Frizyuk, Kristina; Melik-Gaykazyan, Elizaveta V.; Choi, Jae Hyuck; Petrov, Mihail; Park, Hong Gyu; Kivshar, Yuri S.

doi:10.1021/acs.nanolett.1c01025

Cited by 38 publications

(36 citation statements)

References 67 publications

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“…2(a). On the one hand, dimer structures can be utilized for various nanophotonic purposes such as local magnetic field enhancement [37], nonlinear generation enhancement [7,8,38], controlling the directionality of scattering and others, and, on the other hand, offer a simple analytical solution in the framework of the CMM.…”

Section: Nanosphere Dimermentioning

confidence: 99%

“…The solution of Eqs. (8) in the Born approximation of m-th order is given by transition from an infinite series to a finite sum in Eq. ( 10), i.e.,…”

Section: Nanosphere Dimermentioning

confidence: 99%

“…The rapidly developing all-dielectric nanophotonics [1,2,3] brings new functionalities to nanoscale devices and systems for nonlinear generation [4,5,6,7,8], polarization control [9,10], sensing [11,12], lasing [13,14], and imaging [15].…”

Section: Introductionmentioning

confidence: 99%

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Multipole Born series approach to light scattering by Mie-resonant nanoparticle structures

Ustimenko,

Kornovan,

Baryshnikova

et al. 2021

Preprint

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Exciting optical effects such as polarization control, imaging, and holography were demonstrated at the nanoscale using the complex and irregular structures of nanoparticles with the multipole Mie-resonances in the optical range. The optical response of such particles can be simulated either by full wave numerical simulations or by the widely used analytical coupled multipole method (CMM), however, an analytical solution in the framework of CMM can be obtained only in a limited number of cases. In this paper, a modification of the CMM in the framework of the Born series and its applicability for simulation of light scattering by finite nanosphere structures, maintaining both dipole and quadrupole resonances, are investigated. The Born approximation simplifies an analytical consideration of various systems and helps shed light on physical processes ongoing in that systems. Using Mie theory and Green's functions approach, we analytically formulate the rigorous coupled dipole-quadrupole equations and their solution in the different-order Born approximations. We analyze in detail the resonant scattering by dielectric nanosphere structures such as dimer and ring to obtain the convergence conditions of the Born series and investigate how the physical characteristics such as absorption in particles, type of multipole resonance, and geometry of ensemble influence the convergence of Born series and its accuracy.

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Section: Nanosphere Dimermentioning

confidence: 99%

“…The solution of Eqs. (8) in the Born approximation of m-th order is given by transition from an infinite series to a finite sum in Eq. ( 10), i.e.,…”

Section: Nanosphere Dimermentioning

confidence: 99%

See 1 more Smart Citation

Multipole Born series approach to light scattering by Mie-resonant nanoparticle structures

Ustimenko,

Kornovan,

Baryshnikova

et al. 2021

Preprint

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“…12,13 Recently, it was demonstrated that dielectric nanoparticle dimers made of AlGaAs provide high CD of the second-harmonic signal due to excitation of Mie resonances. 14 Also, it was predicted that nonlinear dielectric metasurfaces with asymmetric meta-atoms can be employed to enhance the nonlinear CD up to near-unity values by excitation of bound states in the continuum with high Q factors. 15 Here, we propose a design of a chiral nonlinear dielectric metasurface supporting high-Q resonant Mie modes in the near-IR.…”

Section: Introductionmentioning

confidence: 99%

Resonant chiral effects in nonlinear dielectric metasurfaces

Koshelev¹,

Tang²,

Hu³

et al. 2022

Preprint

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We study both linear and nonlinear circular dichroism in dielectric resonant metasurfaces. We predict and demonstrate experimentally the enhancement of circular dichroism for normal propagation of light due to the excitation of multipolar Mie-type modes in silicon resonators and the formation of a complex vectorial field structure. We also reveal that high-quality Mie resonances satisfying optimal coupling condition can lead to giant circular dichroism in the nonlinear regime observed for the generation of the third-harmonic signal by normally propagating circularly polarized fundamental frequency fields.

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“…One of the most intuitive solution is to engineer the geometric parameters of designed nanostructure, the polarization and intensity of incident light, which has been demonstrated to shape the nonlinear wavefront especially the radiation pattern of harmonic generation in previous works [32][33][34][35][36][37][38] . On the other hand, motivated by the recent progress of active nanophotonics, a great interest has been triggered into the study of dynamical control of harmonic generation in dielectric nanostructures using external stimuli 39 .…”

Section: Introductionmentioning

confidence: 99%

Tuning nonlinear second-harmonic generation in AlGaAs nanoantennas via chalcogenide phase change material

Liu,

Fang,

Xiao

2021

Preprint

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The ability to engineer nonlinear optical processes in all-dielectric nanostructures is both of fundamental interest and highly desirable for high-performance, robust, and miniaturized nonlinear optical devices. Herein, we propose a novel paradigm for the efficient tuning of second-harmonic generation (SHG) process in dielectric nanoantennas by integrating with chalcogenide phase change material. In a design with Ge2Sb2Te5 (GST) film sandwiched between the AlGaAs nanoantennas and AlOx substrate, the nonlinear SHG signal from the AlGaAs nanoantennas can be boosted via the resonantly localized field induced by the optically-induced Mie-type resonances, and further modulated by exploiting the GST amorphous-to-crystalline phase change in a non-volatile, multilevel manner. The tuning strategy originates from the modulation of resonant conditions by changes in the refractive index of GST. With a thorough examination of tuning performances for different nanoantenna radii, a maximum modulation depth as high as 540% is numerically demonstrated. This work not only reveals out the potential of GST in optical nonlinearity control, but also provides promising strategy in smart designing tunable and reconfigurable nonlinear optical devices, e.g., light emitters, modulators, and sensors.

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Nonlinear Circular Dichroism in Mie-Resonant Nanoparticle Dimers

Cited by 38 publications

References 67 publications

Multipole Born series approach to light scattering by Mie-resonant nanoparticle structures

Multipole Born series approach to light scattering by Mie-resonant nanoparticle structures

Resonant chiral effects in nonlinear dielectric metasurfaces

Tuning nonlinear second-harmonic generation in AlGaAs nanoantennas via chalcogenide phase change material

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