Control of directional emission of resonance modes in an asymmetric cylindrical microcavity

Peter, Jaison; Kailasnath, M.; Anand, Vikas; Vallabhan, C. P. G.; Mujeeb, A.

doi:10.1016/j.optlastec.2018.02.028

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…Compared to other on-chip structures, the specific characteristic ring structures of optical microcavities enable them to confine light into small volumes in order to enhance light-atom interactions by resonant recirculation implying the natural frequency selection function. There are remarkable types of microcavities with different Q factor levels (which are proportional to the confinement time in units of the optical period [129] ), such as the Fabry-Perot bulk optical cavity, [130][131][132] microsphere, [133,134] microtoroid, [135][136][137][138][139] micropost, [140][141][142][143] microdisk, [144][145][146] semiconductor, [147][148][149][150][151][152] polymer add-drop filter, [153][154][155] photonic crystal cavity, [156][157][158][159][160][161] and microring cavity. [162][163][164][165] On the one hand, these microcavities can be used to generate orbital angular momentum beams owing to their resonant power enhancement and natural frequency selection characteristics.…”

Section: Microcavitymentioning

confidence: 99%

On‐Chip Light–Atom Interactions: Physics and Applications

Wang

Chai

2022

Advanced Photonics Research

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The large volumes induced by complex free‐space optical paths pose a challenge to quantum precision measurement and optical communication in traditional optics. Meanwhile, on‐chip integration is an important requirement for quantum technology. To simplify complicated optical systems, the development of miniaturized and integrated devices with a variety of structures, such as optical waveguide, microcavity, photonic crystal, and metasurface, has attracted increasing attention. Herein, on‐chip light–atom interactions affected by these nanostructures from the aspects of recent advancement in their physics and applications are reviewed. In recent years, different nanostructures are used to realize the functions of macro‐optical systems. The structural characteristics, interaction mechanisms, and main achievements in terms of the applications of the corresponding devices are demonstrated and compared. Finally, the research trends and challenges as well as the scope for future work are discussed.

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Section: Microcavitymentioning

confidence: 99%

On‐Chip Light–Atom Interactions: Physics and Applications

Wang

Chai

2022

Advanced Photonics Research

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“…Hence, directional emission is also required to support a high output power, and also facilitate easy coupling to a waveguide for optoelectronic circuits. Therefore, to date, several microcavity lasers have been studies to achieve these properties simultaneously [12][13][14][15][16][17].…”

mentioning

confidence: 99%

Entropic measure of directional emissions in microcavity lasers

Park,

Ju,

Jeong

2022

Preprint

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We propose a noble notion of the directional emission in microcavity lasers. First, Shannon entropy of the far-field profiles in the polar coordinate can quantify the degree of unidirectionality of the emission, while previous notions about the unidirectionality can not efficiently measure in the robust range against a variation of the deformation parameter. Second, a divergence angle of the directional emission is defined phenomenologically in terms of full width at half maximum, and it is barely applicable to a complicated peak structure. However, Shannon entropy of semi-marginal probability of the far-field profiles in the cartesian coordinate can present equivalent results, and moreover it is applicable to even the cases with a complicated peak structure of the emission.

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Exceptional point enhanced nanoparticle detection in deformed Reuleaux-triangle microcavity

Fei,

Zhang,

Zhang

et al. 2024

Front. Optoelectron.

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In this paper, we propose a deformed Reuleaux-triangle resonator (RTR) to form exceptional point (EP) which results in the detection sensitivity enhancement of nanoparticle. After introducing single nanoparticle to the deformed RTR at EP, frequency splitting obtains an enhancement of more than 6 times compared with non-deformed RTR. In addition, EP induced a result that the far field pattern of chiral mode responses significantly to external perturbation, corresponding to the change in internal chirality. Therefore, single nanoparticle with far distance of more than 4000 nm can be detected by measuring the variation of far field directional emission. Compared to traditional frequency splitting, the far field pattern produced in deformed RTR provides a cost-effective and convenient path to detect single nanoparticle at a long distance, without using tunable laser and external coupler. Our structure indicates great potential in high sensitivity sensor and label-free detector. Graphical Abstract

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Control of directional emission of resonance modes in an asymmetric cylindrical microcavity

Cited by 7 publications

References 16 publications

On‐Chip Light–Atom Interactions: Physics and Applications

On‐Chip Light–Atom Interactions: Physics and Applications

Entropic measure of directional emissions in microcavity lasers

Exceptional point enhanced nanoparticle detection in deformed Reuleaux-triangle microcavity

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