Nonlinear optics in plasmonic nanostructures

Panoiu, Nicolae C.; Sha, Wei E. I.; Lei, Dangyuan; Li, Guang-Can

doi:10.1088/2040-8986/aac8ed

Cited by 204 publications

(195 citation statements)

References 180 publications

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“…There is currently an extensive toolbox for manipulating the plasmonic response, e.g., by changing the size, the shape, the periodicity or the stacking of nanostructures . In the case of SHG, the nonlinear response is governed by the samples' symmetry . Noncentrosymmetric materials, such as GaAs are therefore good sources of SHG.…”

Section: Electromagnetic Hotspots and Hot Electronsmentioning

confidence: 99%

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“Hot” in Plasmonics: Temperature‐Related Concepts and Applications of Metal Nanostructures

Kuppe

Rusimova

Ohnoutek

et al. 2019

Advanced Optical Materials

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Recent advances in nonlinear optics, hot electrons for renewable energy (e.g., solar cells and water‐splitting), acousto‐optics, nanometalworking, nanorobotics, steam generation, and photothermal cancer therapy are reviewed here. In all these areas, one of the key enabling properties is the ability of metallic nanoparticles to harvest and control light at the subwavelength scale by supporting coherent electronic oscillations, called localized surface plasmon resonances (LSPRs). Various physical properties and potential areas of application emerge depending on the decay mechanism of the LSPR and, especially, depending on the considered timescale. The field of plasmonics has mainly been associated with manipulating electromagnetic near‐fields at the nanoscale, where absorption is an obstacle. However, plasmonic absorption leads to a stream of temperature‐related phenomena that have only recently attracted significant attention. The goal of this review is to highlight exciting new areas of research (such as nanorobotics, nanometalworking, or acousto‐optical techniques) and to survey the most recent progress in more established areas (such as hot electrons, photothermal therapy, and plasmonic steam generation). To set each research area in context, the text is organized around the thermal cycle of the nanoparticles.

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Section: Electromagnetic Hotspots and Hot Electronsmentioning

confidence: 99%

“…Some of the most promising areas of applications for NLO are miniaturized tunable lasers, ultrathin optical components (based on metasurfaces), nondestructive imaging and ultrasensitive material characterization. In each case, the electromagnetic hotspots of plasmonic nanoparticles can play a crucial role …”

Section: Introductionmentioning

confidence: 99%

“Hot” in Plasmonics: Temperature‐Related Concepts and Applications of Metal Nanostructures

Kuppe

Rusimova

Ohnoutek

et al. 2019

Advanced Optical Materials

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“…2e, apart from the gap of C = 1, other gaps with C = −1, −2, 2, 3 are typically narrow and appear at high frequencies, so designing setups where these gaps are wide and are formed at low frequencies is particularly relevant from experimental point of view. Last but not least, the concept of topology-protected nonlinear frequency mixing is universal in that it applies not only to photonics, but also to plasmonics [32][33][34][35], phononics [36][37][38], magnonics [39][40][41], and metamaterials [42,43], thus we expect that our work will generate a broad impact.…”

Section: Resultsmentioning

confidence: 99%

Nonlinear one-way edge-mode interactions for frequency mixing in topological photonic crystals

2020

Self Cite

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Topological photonics aims to utilize topological photonic bands and corresponding edge modes to implement robust light manipulation, which can be readily achieved in the linear regime of light-matter interaction. Importantly, unlike solid state physics, the common test bed for new ideas in topological physics, topological photonics provide an ideal platform to study wave mixing and other nonlinear interactions. These are well-known topics in classical nonlinear optics but largely unexplored in the context of topological photonics. Here, we investigate nonlinear interactions of one-way edge-modes in frequency mixing processes in topological photonic crystals. We present a detailed analysis of the band topology of two-dimensional photonic crystals with hexagonal symmetry and demonstrate that nonlinear optical processes, such as second-and third-harmonic generation can be conveniently implemented via one-way edge modes of this setup. Moreover, we demonstrate that more exotic phenomena, such as slow-light enhancement of nonlinear interactions and harmonic generation upon interaction of backwardpropagating (left-handed) edge modes can also be realized. Our work opens up new avenues towards topologyprotected frequency mixing processes in photonics.One of the most important developments in condensed matter physics in the past decades is the discovery of topological insulating materials [1,2]. These materials feature gapped bulk but gapless edge modes, which propagate unidirectionally along the system edge and are immune to local disorder, thus opening a promising avenue towards robust wave manipulation protected by topology. Inspired by this development, the emerging field of topological photonics aims to extend these topology related ideas to the realm of photonics [3][4][5][6], which holds great promises for innovative optical devices by exploiting robust, scattering-free light propagation and manipulation. As the concept of energy band exists at the single particle level both in condensed matter physics and photonics, the goal of realizing photonic topological insulators can be readily achieved in the linear regime of light matter interaction. Indeed, topological phenomena of electromagnetic waves in a linear medium can be understood by mapping Maxwell equations to the Schrödinger equation [7,8].Photonics, however, has several features not present in solid-state physics. For example, optical gain and loss can be utilized to implement non-Hermitian photonics based on parity-time symmetry [9]. The recently realized topological insulator laser demonstrates the power of this new ingredient and could deepen our understanding of the interplay between non-hermiticity and topology in active optical systems k ω ω 0 Ω 2 = 2ω 0 Ω 3 = 3ω 0 y x z a b FIG. 1. Nonlinear one-way edge mode interaction in 2D topological photonic crystals. a, Schematic band structure showing the emergent edge modes due to the nontrivial topology of the bulk frequency bands. The edge modes can couple via SHG and THG frequency mixing processes. b, Real ...

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“…The resonant response is one of the main routes to increase the efficiency of nonlinear signal generation at the subwavelength scales in the absence of phase matching effects. That is why optical nonlinearity at the nanoscale is usually associated with the enhancement of electric fields in plasmonic nanostructures due to geometric plasmon resonances [1,2]. Despite the significant progress in this area [3], there exist fundamental drawbacks that limit the efficiency of nonlinear generation with metallic structures.…”

Section: Introductionmentioning

confidence: 99%

“…Despite the intense experimental stuides of the SHG effects in Mie-resonant nanostructures, a comprehensive theory of the SHG emission from nanoparticles with nonzero bulk nonlinearity tensorχ (2) has not been proposed yet. The important works related to the SHG generation were focused on the surface and bulk effects in nanoparticles with centrosymmetric crystalline lattice: in noble metal nanoparticles [16][17][18] including the shape effects [19], and in Mie-resonant silicon nanoparticles [20,21].…”

Section: Introductionmentioning

confidence: 99%

Second-harmonic generation in Mie-resonant dielectric nanoparticles made of noncentrosymmetric materials

et al. 2019

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We develop a multipolar theory of second-harmonic generation (SHG) by dielectric nanoparticles made of noncentrosymmetric materials with bulk quadratic nonlinearity. We specifically analyze two regimes of optical excitation: illumination by a plane wave and single-mode excitation, when the laser pump drives the magnetic dipole mode only. Considering two classes of nonlinear crystalline solids (dielectric perovskite material and III-V semiconductor), we apply a symmetry approach to derive selection rules for the multipolar composition of the nonlinear radiation. The developed description can be used for design of efficient nonlinear optical nanoantennas with reconfigurable radiation characteristics.

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Nonlinear optics in plasmonic nanostructures

Cited by 204 publications

References 180 publications

“Hot” in Plasmonics: Temperature‐Related Concepts and Applications of Metal Nanostructures

“Hot” in Plasmonics: Temperature‐Related Concepts and Applications of Metal Nanostructures

Nonlinear one-way edge-mode interactions for frequency mixing in topological photonic crystals

Second-harmonic generation in Mie-resonant dielectric nanoparticles made of noncentrosymmetric materials

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