Results 31 to 40 of about 2,791,273 (292)

A spectrally bright wavelength-switchable vacuum ultraviolet source driven by quantum coherence in strong-field-ionized molecules

open access: yesNew Journal of Physics, 2021
We report generation of spectrally bright vacuum ultraviolet (VUV) and deep UV (DUV) coherent radiations at the wavelengths of 192 nm, 198 nm and 204 nm.
Yuexin Wan   +8 more
doaj   +1 more source

Techniques for Constructing Ultra Low Cost Deep Ultraviolet Transmission Microscopes

open access: yesIEEE Access, 2023
This article presents the design, construction, and results obtained by our new compact, small and inexpensive deep UV microscope. Several methods are described for recording microscopic images of various types in the deep ultraviolet spectral regime ...
Dinesh Dhankhar, Peter M. Rentzepis
doaj   +1 more source

Ultralow-power deep-ultraviolet photodetection using oxide-nitride heterojunctions integrated on silicon

open access: yes, 2022
A Si-integrated oxide-nitride deep-ultraviolet photodetector with remarkable photosensitivity is demonstrated. The proposed device topology is realized through the disordered nucleation of β-Ga2O3 crystals on monocrystalline TiN interlayers forming an ...
Ng, Tien Khee   +7 more
core   +1 more source

Solar‐Blind Ultrathin Sn‐Doped Polycrystalline Ga2O3 UV Phototransistor for Normally Off Operation

open access: yesAdvanced Photonics Research, 2022
Deep ultraviolet (DUV) photodetectors (PDs) based on ultrawide bandgap β‐Ga2O3 have great potential for aerospace, military, and civilian applications, especially because of their inherent solar blindness.
Youngbin Yoon   +2 more
doaj   +1 more source

275 nm Deep Ultraviolet AlGaN-Based Micro-LED Arrays for Ultraviolet Communication

open access: yesIEEE Photonics Journal, 2022
In this work, we fabricated and characterized 4 × 4 parallel flip-chip AlGaN-based micro-LED arrays with varied mesa diameters of 120 µm, 100 µm, 80 µm, and 60 µm.
Liang Guo   +6 more
doaj   +1 more source

Natural hyperbolicity of hexagonal boron nitride in the deep ultraviolet. [PDF]

open access: yesNat Commun
Abstract Hyperbolic media enable unique optical phenomena including hyperlensing, negative refraction, enhanced photonic density of states (PDOS), and highly confined polaritons. While most hyperbolic media are artificially engineered metamaterials, certain natural materials with extreme anisotropy can exhibit hyperbolic dispersion ...
Choi B   +8 more
europepmc   +4 more sources

High-Performance and Self-Powered Deep UV Photodetectors Based on High Quality 2D Boron Nitride Nanosheets

open access: yesNanomaterials, 2017
High-quality two-dimensional (2D) crystalline boron nitride nanosheets (BNNSs) were grown on silicon wafers by using pulsed plasma beam deposition techniques.
Ali Aldalbahi   +5 more
doaj   +1 more source

Exploiting Cross-Luminescence in BaF2 for Ultrafast Timing Applications Using Deep-Ultraviolet Sensitive HPK Silicon Photomultipliers

open access: yesFrontiers in Physics, 2020
Time resolution of scintillation-based detectors is becoming continuously more important, both for medical applications, especially in positron emission tomography (PET), and in high energy physics. This article is an initial study on exploiting the fast
Rosalinde Hendrika Pots   +4 more
doaj   +1 more source

Low-energy-threshold deep-ultraviolet generation in a small-mode-area hollow-core fiber

open access: yes, 2022
This dataset contains the data used in the journal paper "Xiong, D., Luo, J., Hassan, M. R. A., Wu, X., & Chang, W. (2021). Low-energy-threshold deep-ultraviolet generation in a small-mode-area hollow-core fiber. Photonics Research, 9(4), 590-595." and a
Xiong, Daiqi
core   +1 more source

Deep Ultraviolet BGaN Quantum Dot structures

open access: yesمجلة علوم ذي قار, 2022
This research studies boron-containing quantum dot (QD) structures that emit the ultraviolet. Ternary and quaternary lattice-matched structure:, , , , ,, , and and their TE and TM gain spectra, spontaneous emission, spontaneous polarization, and ...
Yasmeen Saad   +1 more
doaj   +1 more source

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