Results 41 to 50 of about 1,939 (181)

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

Interpretable Machine Learning for Bandgap Prediction and Descriptor‐Guided Design Rules of Phosphates

Advanced Intelligent Discovery, EarlyView.
An explainable CatBoost model was trained to predict the bandgaps of 474 phosphate crystals based on composition and density descriptors. SHAP analysis identified two key variables—d‐electron‐count dispersion and atomic‐density dispersion—as the primary drivers of the model's predictions.
Wenhu Wang, Abudukadi Tudi, Ran An, Zhihua Yang   +3 more
wiley   +1 more source

Influence of Thin Fluorine Resin Film on DUV LED Packaging Devices

Applied Sciences, 2023
Amorphous fluorine resin is a promising material that can be used for the encapsulation of deep-ultraviolet light-emitting diodes (DUV LEDs) to promote the light output, due to its light characteristics which mean it shows no absorption in the DUV ...
Wenbo Li, Leming Tang, Yong Yang, Zhicong Zhang, Guanghui Li, Meixin Feng, Qiming Xu, Qian Sun   +7 more
doaj   +1 more source

Borate-Based Ultraviolet and Deep-Ultraviolet Nonlinear Optical Crystals

, 2017
Borates have long been recognized as a very important family of nonlinear optical (NLO) crystals, and have been widely used in the laser frequency-converting technology in ultraviolet (UV) and deep-ultraviolet (DUV) regions.
Yi Yang, Zheshuai Lin, Yicheng Wu, Xingxing Jiang   +3 more
core   +1 more source

Improved Characteristics of AlGaN-Based Deep Ultraviolet Light-Emitting Diodes with Superlattice p-Type Doping

IEEE Photonics Journal, 2017
The photoelectric properties and physical mechanism of AlGaN-based deep ultraviolet light emitting diodes (DUV-LEDs) with the superlattice p-type doping layer (PSL) are studied numerically and compared with the Al-composition (50%) conventional p ...
Qianying Si, Hangyang Chen, Shuping Li, Shiqiang Lu, Junyong Kang   +4 more
doaj   +1 more source

An excellent deep-ultraviolet birefringent material based on [BO2]∞ infinite chains

Light: Science & Applications, 2022
Birefringent materials play indispensable roles in modulating the polarization of light and are vital in the laser science and technology. Currently, the design of birefringent materials operating in the deep-ultraviolet region (DUV, λ ≤200 nm) is still ...
Fangfang Zhang, Xinglong Chen, Min Zhang, Wenqi Jin, Shujuan Han, Zhihua Yang, Shilie Pan   +6 more
doaj   +1 more source

Formation of conductive spontaneous via holes in AlN buffer layer on n+Si substrate by filling the vias with n-AlGaN by metal organic chemical vapor deposition and application to vertical deep ultraviolet photo-sensor

AIP Advances, 2014
We have grown conductive aluminum nitride (AlN) layers using the spontaneous via holes formation technique on an n+-Si substrate for vertical-type device fabrication.
N. Kurose, N. Iwata, I. Kamiya, Y. Aoyagi   +3 more
doaj   +1 more source

Deep learning classification of deep ultraviolet fluorescence images toward intra-operative margin assessment in breast cancer

Frontiers in Oncology, 2023
BackgroundBreast-conserving surgery is aimed at removing all cancerous cells while minimizing the loss of healthy tissue. To ensure a balance between complete resection of cancer and preservation of healthy tissue, it is necessary to assess themargins of
Tyrell To, Tongtong Lu, Julie M. Jorns, Mollie Patton, Taly Gilat Schmidt, Tina Yen, Bing Yu, Dong Hye Ye   +7 more
doaj   +1 more source

Organic photonic synaptic transistors for bionic vision: From spectral engineering to flexible intelligent perception

FlexMat, EarlyView.
Different wavelength photonic synapses are used for biomimetic visual applications. Abstract Bionic intelligent visual perception systems have significant application prospects in fields such as autonomous driving and robotics, medical imaging and auxiliary diagnosis, security and monitoring.
Longlong Jiang, Shan Wu, Silu Feng, Heyi Huang, Wangyu Wu, Hong Han, Yao Ni   +6 more
wiley   +1 more source

Multi-mJ, kHz, ps deep-ultraviolet source

, 2016
We demonstrate a 0.56-GW, 1-kHz, 4.2-ps, 2.74-mJ deep-ultraviolet (DUV) laser at ∼257.7 nm with a beam propagation factor ($M^{2}$) of ~2.54 from a frequency-quadrupled cryogenic multi-stage Yb-doped chirped-pulse amplifier.
Siqueira, Jonathas P., Zapata, Luis E., Krogen, Peter, Hong, Kyung-Han, Liang, Houkun, Kärtner, Franz. X., Lai, Chien-Jen, Chang, Chun-Lin, Stein, Gregory J., Moses, Jeffrey   +9 more
core   +1 more source