Highly efficient collection for photon emission enhanced by the hybrid photonic-plasmonic cavity

Zhu, Guchuan; Liao, Qinghua

doi:10.1364/oe.26.031391

Cited by 13 publications

(12 citation statements)

References 43 publications

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“…Hence, nonradiative antenna losses can be mitigated by going to the red-detuned regime where a large fraction of the energy exits the system via radiative cavity losses. In fact, it was shown that hybrid systems can show highly efficient power extraction into a single-mode waveguide, while keeping LDOS high [35,111].…”

Section: Single-photon Sources: Time Jitter Brightness and Indistinmentioning

confidence: 99%

Hybrid cavity-antenna systems for quantum optics outside the cryostat?

2019

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Hybrid cavity-antenna systems have been proposed to combine the sub-wavelength light confinement of plasmonic antennas with microcavity quality factors Q. Here, we examine what confinement and Q can be reached in these hybrid systems, and we address their merits for various applications in classical and quantum optics. Specifically, we investigate their applicability for quantum-optical applications at noncryogenic temperatures. To this end we first derive design rules for hybrid resonances from a simple analytical model. These rules are benchmarked against full-wave simulations of hybrids composed of state-of-the-art nanobeam cavities and plasmonic-dimer gap antennas. We find that hybrids can outperform the plasmonic and cavity constituents in terms of Purcell factor, and additionally offer freedom to reach any Q at a similar Purcell factor. We discuss how these metrics are highly advantageous for a high Purcell factor, yet weak-coupling applications, such as bright sources of indistinguishable single photons. The challenges for room-temperature strong coupling, however, are far more daunting: the extremely high dephasing of emitters implies that little benefit can be achieved from trading confinement against a higher Q, as done in hybrids. An attractive alternative could be strong coupling at liquid nitrogen temperature, where emitter dephasing is lower and this trade-off can alleviate the stringent fabrication demands required for antenna strong coupling. For few-emitter strong-coupling, high-speed and low-power coherent or incoherent light sources, particle sensing and vibrational spectroscopy, hybrids provide the unique benefit of very high local optical density of states, tight plasmonic confinement, yet microcavity Q.

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Section: Single-photon Sources: Time Jitter Brightness and Indistinmentioning

confidence: 99%

Hybrid cavity-antenna systems for quantum optics outside the cryostat?

2019

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“…In ref. [190], a hybrid photonic–plasmonic cavity composed of a Au nanorod dimer and a photonic crystal nanobeam cavity was theoretically demonstrated to fulfill both requirements. It was calculated that the spontaneous emission rate of a single emitter could be boosted by 5060‐times and that the collection efficiency into a dielectric waveguide reached 67%.…”

Section: Applicationsmentioning

confidence: 99%

“…Plasmonic NPs can be used to functionalize such on‐chip waveguides locally, adding functionalities such as light routing, [ 186,187 ] all‐optical switching, [ 188,189 ] or enhancing the emission from a nanoscale source directly into a guided mode. [ 190 ] The primary advantage of such an approach is the small footprint of the plasmonic antennas, which may enable highly compact on‐chip devices and/or a high integration density. Likewise, dielectric on‐chip waveguides can be bent to form high‐ Q WGM resonators, which can also be hybridized locally by plasmonic nanoantennas, forming coupled antenna‐cavity systems for high Purcell enhancements as described under the corresponding point above in this section.…”

Section: Introductionmentioning

confidence: 99%

Applications of Hybrid Metal‐Dielectric Nanostructures: State of the Art

Barreda

Vitale

Minovich

et al. 2022

Advanced Photonics Research

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Enhancing the light‐matter interactions is important for many different applications like sensing, surface enhanced spectroscopies, solar energy harvesting, and for quantum effects such as nonlinear frequency generation or spontaneous and stimulated emission. Hybrid metal‐dielectric nanostructures have shown extraordinary performance in this respect, demonstrating their superiority with respect to bare metallic or high refractive index dielectric nanostructures. Such hybrid nanostructures can combine the best of two worlds: strong confinement of the electromagnetic energy by metallic structures and high scattering directivity and low losses of the dielectric ones. In this review, following a general overview of the properties of metal‐dielectric nanostructures, some of their most relevant applications including directional scattering, sensing, surface enhanced Raman spectroscopy, absorption enhancement, fluorescence and quantum dot emission enhancement, nonlinear effects, as well as lasing, are summarized.

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“…Nevertheless, hybrid nanostructures can balance low loss (higher quality factors) with high confinement (smaller mode volumes) between two kinds of structures under deliberate design of hybrid resonances. It has been recently reported that multilayer nanodisks [29][30][31][32], hybrid nanodisk-nanoparticle structures [33][34][35][36], dimer antennas [37][38][39], Yagi-Uda antennas [40], spoof nanodisks [41], nanoparticle-cavity systems [42][43][44][45][46][47][48][49], metalsemiconductor nanowires [50,51] and hybrid gratings [52] are utilized as hybrid nanophotonic structures. These nanostructures have exhibited their potentials in nanolasers [53][54][55], strong light-matter interaction [44,47], radiation directivity control [56,57], nonlinear effects [58,59] and sensing [60].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous magnetic and electric Purcell enhancement in a hybrid metal-dielectric nanostructure

Shan¹,

Liu²,

Ma³

et al. 2023

Preprint

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Hybrid metal-dielectric structures, which combine the advantages of both metal and dielectric materials, support high-confined but low-loss magnetic and electric resonances under deliberate arrangements. However, their potential for enhancing magnetic emission has not been explored. Here, we study the simultaneous magnetic and electric Purcell enhancement supported by a hybrid structure consisting of a dielectric nanoring and a silver nanorod. Such a structure enables low Ohmic loss and highly-confined field under the mode hybridization of magnetic resonances on nanoring and electric resonances on nanorod in the optical communication band. So, the 60-fold magnetic Purcell enhancement and 45-fold electric Purcell enhancement can be achieved simultaneously with > 95% of the radiation transmitted to far field. The position of emitter has a several-ten-nanometer tolerance for sufficiently large Purcell enhancement, which brings convenience to experimental fabrications.Moreover, an array formed by this hybrid nanostructure can further enhance the magnetic Purcell factors. The findings provide a possibility to selectively excite the magnetic and electric emission in integrated photon circuits. It may also facilitate brighter magnetic emission sources and light-emitting metasurfaces in a simpler arrangement.

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Highly efficient collection for photon emission enhanced by the hybrid photonic-plasmonic cavity

Cited by 13 publications

References 43 publications

Hybrid cavity-antenna systems for quantum optics outside the cryostat?

Hybrid cavity-antenna systems for quantum optics outside the cryostat?

Applications of Hybrid Metal‐Dielectric Nanostructures: State of the Art

Simultaneous magnetic and electric Purcell enhancement in a hybrid metal-dielectric nanostructure

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