Results 21 to 30 of about 52,471 (290)

Fabrication of Transparent and Conductive SWCNT/SiO₂ Composite Thin-Film by Photo-Irradiation of Molecular Precursor Films

Nanomaterials, 2021
A single-walled carbon nanotube (SWCNT)-silica composite thin film on a quartz glass was formed by ultraviolet irradiation (20–40 °C) onto a spin-coated precursor film.
Naoki Ogawa, Hiroki Nagai, Yukihiro Kudoh, Takeyoshi Onuma, Taichi Murayama, Akinobu Nojima, Mitsunobu Sato   +6 more
doaj   +1 more source

Investigation of Light-Extraction Efficiency of Flip-Chip AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes Adopting AlGaN Metasurface

IEEE Photonics Journal, 2021
Herein, we investigate the influence of an AlGaN metasurface on AlGaN-based deep-ultraviolet light-emitting diodes' light-extraction efficiency by utilizing the 3D finite-difference time-domain method.
Joosun Yun, Hideki Hirayama
doaj   +1 more source

Deep Ultraviolet Light-Emitting Diode Light Therapy for Fusobacterium nucleatum

Microorganisms, 2021
Background: Fusobacterium nucleatum, which is associated with periodontitis and gingivitis, has been detected in colorectal cancer (CRC). Methods: We evaluated the bactericidal effect of deep ultraviolet (DUV) light-emitting diode (LED) light therapy on ...
Soichiro Fukuda, Shunsuke Ito, Jun Nishikawa, Tatsuya Takagi, Naoto Kubota, Ken-ichiro Otsuyama, Hidehiro Tsuneoka, Junzo Nojima, Koji Harada, Katsuaki Mishima, Yutaka Suehiro, Takahiro Yamasaki, Isao Sakaida   +12 more
doaj   +1 more source

Deep-Ultraviolet Transparent Conductive MWCNT/SiO₂ Composite Thin Film Fabricated by UV Irradiation at Ambient Temperature onto Spin-Coated Molecular Precursor Film

Nanomaterials, 2021
Deep-ultraviolet (DUV) light-transparent conductive composite thin films, consisting of dispersed multiwalled carbon nanotubes (MWCNTs) and SiO2 matrix composites, were fabricated on a quartz glass substrate.
Hiroki Nagai, Naoki Ogawa, Mitsunobu Sato   +2 more
doaj   +1 more source

Verdet constant dispersion of magnesium fluoride for deep-ultraviolet and vacuum-ultraviolet Faraday rotators

, 2023
0000-0002-7220-0613The Verdet constant dispersion in magnesium fluoride (MgF2) crystals was evaluated over a wavelength range of 190–300 nm. The Verdet constant was found to be 38.7 rad/(T·m) at a wavelength of 193 nm. These results were fitted using the
UEHARA, Hiyori, MIURA, Taisuke, YASUHARA, Ryo, TAMARU, Yuki, FUCHIMUKAI, Atsushi   +4 more
core   +2 more sources

Optimization algorithms as training approach with hybrid deep learning methods to develop an ultraviolet index forecasting model [PDF]

, 2022
The solar ultraviolet index (UVI) is a key public health indicator to mitigate the ultraviolet-exposure related diseases. This study aimed to develop and compare the performances of different hybridised deep learning approaches with a convolutional ...
Ahmed, Mohammad Hafez, Ahmed, A. A. Masrur, Sutradhar, Ambica, Ahmed, Oli, Saha, Sanjoy Kanti   +4 more
core   +1 more source

Deep-ultraviolet cavity ringdown spectroscopy [PDF]

Optics Letters, 2004
The sensitive optical detection technique of cavity ringdown spectroscopy is extended to the wavelength range 197-204 nm. A novel design narrowband Fourier-transform-limited laser is used, and the technique is applied to gas-phase extinction measurements in CO2, SF6, and O2.
Sneep, M.C., Hannemann, S., van Duijn, E.J., Ubachs, W.M.G.   +3 more
openaire   +3 more sources

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

New 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, Zhaoxiang Liu, Jinping Yao, Bo Xu, Jinming Chen, Fangbo Zhang, Zhihao Zhang, Lingling Qiao, Ya Cheng   +8 more
doaj   +1 more source

Anomalous Photocurrent Reversal Due to Hole Traps in AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes

Micromachines, 2022
The trap states and defects near the active region in deep-ultraviolet (DUV) light-emitting diodes (LED) were investigated through wavelength-dependent photocurrent spectroscopy.
Seungyoung Lim, Tae-Soo Kim, Jaesang Kang, Jaesun Kim, Minhyup Song, Hyun Deok Kim, Jung-Hoon Song   +6 more
doaj   +1 more source

Twist-Driven Deep-Ultraviolet-Wavelength Exciton Funnel Effect in Bilayer Boron Nitride

, 2023
Realizing direct band gap quantum dots working within the deep-ultraviolet frequency is highly desired for electro-optical and biomedical applications while remaining challenging.
Yizhou Wang (2054761), Linghan Zhu (10212682), Li Yang (6520)   +2 more
core   +1 more source