Metasurface-tunable lasing polarizations in a microcavity

Yuan, Zhiy; Huang, Shih‐Hsiu; Qiao, Zhen; Wu, Pin Chieh; CHEN, YU-CHENG

doi:10.1364/optica.478616

Cited by 7 publications

(3 citation statements)

References 29 publications

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“…The results demonstrate that the polarization state of lasing output can be actively modulated and controlled at the source with a metasurface‐embedded mircocavity. [ 91 ]…”

Section: Contribution Of Hybrid Microcavity To Laser Outputmentioning

confidence: 99%

“…The results demonstrate that the polarization state of lasing output can be actively modulated and controlled at the source with a metasurface-embedded mircocavity. [91] The hybrid microcavity, which combines both OAM and SAM adjustment, has the potential to provide even more informationcarrying capacity and sensing capabilities. However, due to its complex mechanism and higher implementation difficulty, the work of angular momentum adjustment hybrid microcavity lasers is less than others.…”

Section: Angular Momentum Modulationmentioning

confidence: 99%

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Hybrid Microcavity Lasers: Principle, Design, and Practical Application

Liang

Yan

Zhai

2023

Laser & Photonics Reviews

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Control coupling and synchronization of lasers has become increasingly attractive for their applications in spectroscopy, imaging, sensing, secret communication, and optical networks. As complex microcavities emerge, more complicated light–matter interactions, along with the resulting distinct lasing emission behavior, is induced in these hybrid microcavities. This review summarizes the most important advances and current deep insights into the inherent relationship between the hybrid microcavity geometries and lasing behaviors, which are classified as the modulated lasing output freedom, including wavelength, angular momentum, mode, direction, and their multiple combinations. Finally, based on scientific research and practical application, the challenges and prospects of future development of hybrid microcavities are proposed, hoping to provide valuable inspiration for further optimizing hybrid microcavities to achieve low thresholds, small divergence angles, and single‐mode microcavity lasers.

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“…The results demonstrate that the polarization state of lasing output can be actively modulated and controlled at the source with a metasurface‐embedded mircocavity. [ 91 ]…”

Section: Contribution Of Hybrid Microcavity To Laser Outputmentioning

confidence: 99%

Section: Angular Momentum Modulationmentioning

confidence: 99%

Hybrid Microcavity Lasers: Principle, Design, and Practical Application

Liang

Yan

Zhai

2023

Laser & Photonics Reviews

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“…In recent years, dielectric metasurfaces have garnered significant attention due to their emerging nature, characterized by ultrathin structures, minimal absorption losses, and remarkable capabilities in manipulating light [11][12][13]. This novel, ultrathin, flat optical component has been applied across a broad array of fields, encompassing high numerical aperture lenses [14], waveplates [15], beam deflectors [16], polarization converters [17], beam shapers with holograms [18,19], and polarization-tunable and orbital-angular-momentum-tunable lasers [20,21]. Furthermore, metasurfaces are amenable to seamless integration with established semiconductor processes.…”

Section: Introductionmentioning

confidence: 99%

Metasurface-driven polarization-division multiplexing of PCSEL for optical communications

Miao,

Chang,

Hsiao

et al. 2023

Discover Nano

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Free-space optical communications hold promising advantages, including a large bandwidth, access to license-free spectrum, high data rates, quick and simple deployment, low power consumption, and relaxed quality requirements. Nevertheless, key technical challenges remain, such as a higher transmission efficiency, a lower transmission loss, and a smaller form factor of optical systems. Here, we demonstrate the viability of circular-polarization-multiplexed multi-channel optical communication using metasurfaces alongside a photonic-crystal surface-emitting laser (PCSEL) light source at wavelength of 940 nm. Through the light manipulation with metasurface, we split the linearly polarized incidence into left and right circular polarizations with desired diffraction angles. Such orthogonal polarization states provide a paradigm of polarization division multiplexing technique for light communication. The PCSEL light source maintains a low divergence angle of about 0.373 degrees after passing through an ultra-thin metasurface without further bulky collimator or light guide, making end-to-end (E2E) and device-to-device (D2D) communications available in a compact form. Both light source and modulated polarized light exhibit a − 3 dB bandwidth over 500 MHz, with successful 1 Gbit/s transmission demonstrated in eye diagrams. Our results affirm that metasurface effectively boosts transmission capacity without compromising the light source's inherent properties. Future metasurface designs could expand channel capacity, and its integration with PCSEL monolithically holds promise for reducing interface losses, thereby enhancing efficiency.

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High Quality–Factor All–Dielectric Metacavity for Label–Free Biosensing

Zheng,

Sun,

et al. 2024

Advanced Science

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High sensitivity and high quality‐factor are crucial for achieving outstanding sensing performance in photonic biosensors. However, strong optical field confinement and high light–biomolecule interactions on photonic surfaces are usually contradictory and challenging to satisfy simultaneously. Here, a distinctive configuration for addressing this issue is reported: embedding a nanophotonic metasurface inside a micro vertical cavity as a meta‐channel (metacavity) biosensor. The analyte solution serves as the cavity medium, thereby maximizing the light–analyte interaction. Simulation validation is conducted to optimize the metacavity with high structural robustness and remarkable optical and sensing properties. Large‐scale low‐cost metacavity biosensors are realized by combining anodic aluminum oxide template technique and wafer bonding. Experimentally, the metacavity biosensor demonstrates a notable quality‐factor (maximum 4140) and high bulk refractometric sensitivity (450 nm RIU−1), resulting in an unprecedented figure‐of‐merit (1670 RIU−1). Moreover, the metacavity biosensor achieves high surface sensitivity, together with a detection‐limit of 119 viral copies mL−1 for label‐free severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) pseudovirus sensing, revealing remarkable performance in both bulk and surface sensing.

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Metasurface-tunable lasing polarizations in a microcavity

Cited by 7 publications

References 29 publications

Hybrid Microcavity Lasers: Principle, Design, and Practical Application

Hybrid Microcavity Lasers: Principle, Design, and Practical Application

Metasurface-driven polarization-division multiplexing of PCSEL for optical communications

High Quality–Factor All–Dielectric Metacavity for Label–Free Biosensing

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