Results 31 to 40 of about 7,426,228 (285)

Divalent europium-doped near-infrared-emitting phosphor for light-emitting diodes

Nature Communications, 2019
Here the authors report a near-infrared K3LuSi2O7:Eu2+ phosphor for non-visible light source application. The selective site occupation of Eu2+ in LuO6 and K2O6 polyhedrons is found to be responsible for the light emission and these insights could serve ...
Jianwei Qiao, Guojun Zhou, Yayun Zhou, Qinyuan Zhang, Zhiguo Xia   +4 more
doaj   +1 more source

Effects of High-Temperature Growth of Dislocation Filter Layers in GaAs-on-Si

Nanoscale Research Letters, 2022
GaAs-on-Si templates with two different dislocation filter layers (DFLs) were grown at 550 °C low-temperature (LT)-DFL and 660 °C high-temperature (HT)-DFL using metal organic vapor-phase epitaxy and the effects of the growth temperature were studied ...
HoSung Kim, Dae-Myeong Geum, Young-Ho Ko, Won-Seok Han   +3 more
doaj   +1 more source

Autonomous lab-on-a-chip generic architecture for disposables with integrated actuation

Scientific Reports, 2019
The integration of actuators within disposable lab-on-a-chip devices is a demanding goal that requires reliable mechanisms, systematic fabrication procedures and marginal costs compatible with single-use devices.
Anke Suska, Daniel Filippini
doaj   +1 more source

Recent developments in agar-based optical devices

MRS Communications
Biocompatible optical devices are breakthrough illumination, imaging, and biomedical sensing technologies. Despite the noteworthy developments in silk, cellulose, and hydrogel-based optics, such approaches rely on expensive precursors and intricate ...
E. Fujiwara, Hiromasa Oku, Cristiano M. B. Cordeiro   +2 more
semanticscholar   +1 more source

CMOS-compatible photonic devices for single-photon generation

Nanophotonics, 2016
Sources of single photons are one of the key building blocks for quantum photonic technologies such as quantum secure communication and powerful quantum computing. To bring the proof-of-principle demonstration of these technologies from the laboratory to
Xiong Chunle, Bell Bryn, Eggleton Benjamin J.   +2 more
doaj   +1 more source

Study of the Optical Properties of Multi-Particle Phosphors by the FDTD and Ray Tracing Combined Method

Photonics, 2020
It is well known that the optical properties of multi-particle phosphor are crucial to the light performance of white light-emitting diodes (LEDs). Note that the optical properties including scattering or absorption properties for a single particle are ...
Xinrui Ding, Changkun Shao, Shudong Yu, Binhai Yu, Zongtao Li, Yong Tang   +5 more
doaj   +1 more source

Two Novel Neutral Cyclometalated Iridium(III) Complexes Based on 10,11,12,13-Tetrahydrodibenzo[a,c]phenazine for Efficient Red Electroluminescence

Molecules, 2023
Two novel neutral phosphorescent iridium(III) complexes (Ir1 and Ir2) were rationally designed and synthesized with high yields using 10,11,12,13-tetrahydrodibenzo[a,c]phenazine as the main ligand. The two complexes showed bright-red phosphorescence (625
Yuzhen Yang, Han Zhao, Weiqiao Zhou, Qin Zeng, Zihao Zhang, Junjie Jiang, Yongyang Gong, Yanqin Miao, Song Guo, Yuanli Liu   +9 more
doaj   +1 more source

Pure-quartic solitons

Nature Communications, 2016
Optical solitons are pulses that propagate undistorted. Here, the authors demonstrate a class of soliton arising from the interaction of self-phase modulation with quartic dispersion, rather than with quadratic dispersion as occurs in conventional ...
Andrea Blanco-Redondo, C. Martijn de Sterke, J.E. Sipe, Thomas F. Krauss, Benjamin J. Eggleton, Chad Husko   +5 more
doaj   +1 more source

Thin-Film Optical Devices Based on Transparent Conducting Oxides: Physical Mechanisms and Applications

Crystals, 2019
This paper provides a review of optical devices based on a wide band-gap transparent conducting oxide (TCO) while discussing related physical mechanisms and potential applications.
Jiung Jang, Yeonsu Kang, Danyoung Cha, J. Bae, Sungsik Lee   +4 more
semanticscholar   +1 more source

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei, Stephen Mihalcik, Sujith Baliga, Young Kwok, Dana Casey, Eric Ehler, Christiane Burton, John C. Breneman, Daphne A. Haas‐Kogan, Suzanne L. Wolden, Arnold C. Paulino, Nadia N. Laack, Natia Esiashvili, Sarah Milgrom, Christine Hill‐Kayser, Thomas J. Fitzgerald, John A. Kalapurakal, Chia‐Ho Hua   +17 more
wiley   +1 more source