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   Articles with "dielectric grating" as a keyword



Numerical performance analysis of dielectric grating integrated mercury cadmium telluride long wavelength infrared photodetector

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recommendations! Published in 2025 at "Physica Scripta"

DOI: 10.1088/1402-4896/ae1d2a

Abstract: The quest for achieving high operating temperature (HOT) HgCdTe infrared detectors requires a thin absorbing layer to minimize dark current. However, this imposes a trade-off between carrier collection efficiency and absorption (i.e., responsivity). Particularly, the… read more here.

Keywords: dielectric grating; grating integrated; long wavelength; numerical performance ... See more keywords

A dynamically tunable and wide-angle terahertz absorber based on graphene-dielectric grating

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recommendations! Published in 2020 at "Modern Physics Letters B"

DOI: 10.1142/s0217984920502929

Abstract: We theoretically and numerically demonstrate a tunable and wide-angle terahertz absorber, which is composed of multilayer graphene-dielectric grating and bottom metal substrate. Numerical simulatio... read more here.

Keywords: terahertz absorber; dielectric grating; wide angle; graphene dielectric ... See more keywords

Giant and controllable Goos-Hänchen shift of monolayer graphene strips enabled by a multilayer dielectric grating structure.

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recommendations! Published in 2022 at "Applied optics"

DOI: 10.1364/ao.445558

Abstract: The discovery of monolayer graphene allows the unprecedented chance for exploring its Goos-Hänchen (GH) shift. However, most of the pronounced GH shifts are achieved in various structures with two-dimensional continuous monolayer graphene. Here, we report… read more here.

Keywords: monolayer graphene; shift; monolayer; dielectric grating ... See more keywords

Implementation and phase detection of dielectric-grating-coupled surface plasmon resonance sensor for backside incident light.

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recommendations! Published in 2019 at "Optics express"

DOI: 10.1364/oe.27.003867

Abstract: This paper proposes a design for a dielectric-grating-coupled surface plasmon resonance (SPR) sensor that can be fabricated using a low-cost nanoimprint process and exhibits a high phase detection sensitivity when light is incident on the… read more here.

Keywords: phase detection; dielectric grating; sensor; surface ... See more keywords

Multi-layered all-dielectric grating visible color filter with a narrow band and high-quality factor.

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recommendations! Published in 2022 at "Optics express"

DOI: 10.1364/oe.453155

Abstract: In this paper, we proposed a double-layer all-dielectric grating. Under the premise of ensuring the strength of the resonance peak, the upper SiO2 grating layer suppresses the tendency of high-order dipole resonance excitation and improves… read more here.

Keywords: quality factor; dielectric grating; high quality; filter ... See more keywords