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   Articles with "contrast grating" as a keyword



Demonstration of polarization control GaN-based micro-cavity lasers using a rigid high-contrast grating reflector

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recommendations! Published in 2019 at "Scientific Reports"

DOI: 10.1038/s41598-019-49604-0

Abstract: We reported on GaN microcavity (MC) lasers combined with one rigid TiO2 high-contrast grating (HCG) structure as the output mirror. The HCG structure was directly fabricated on the GaN structure without an airgap. The entire… read more here.

Keywords: reflector; contrast grating; gan based; structure ... See more keywords

Monolithic High Contrast Grating Nitride-Based VECSEL

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recommendations! Published in 2019 at "IEEE Journal of Selected Topics in Quantum Electronics"

DOI: 10.1109/jstqe.2019.2949457

Abstract: This paper proposes a new design for a nitride-based vertical-external-cavity surface-emitting laser (VECSEL) emitting at 394 nm. The structure contains a monolithic high contrast grating (MHCG) instead of a conventional distributed Bragg reflector (DBR), makes the… read more here.

Keywords: contrast grating; monolithic high; high contrast; vecsel ... See more keywords
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Tuning of reflection spectrum of a monolithic high-contrast grating by variation of its spatial dimensions.

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recommendations! Published in 2020 at "Optics express"

DOI: 10.1364/oe.396693

Abstract: We report the first experimental parametric analysis of subwavelength monolithic high-contrast grating (MHCG) mirrors. To date, subwavelength grating mirrors have been fabricated by suspending a thin grating membrane in the air or placing it on… read more here.

Keywords: monolithic high; reflection spectrum; contrast grating; tuning reflection ... See more keywords

Thin-film dielectric characterization by bound state in the continuum in high contrast grating.

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recommendations! Published in 2024 at "Optics express"

DOI: 10.1364/oe.537197

Abstract: Subwavelength high contrast grating (HCG) is renowned for its remarkable ability to produce sharp optical resonance, known as the bound state in the continuum (BIC). Due to the strong surface field enhancement, the resonant wavelength… read more here.

Keywords: bound state; contrast grating; high contrast; characterization ... See more keywords