Results 151 to 160 of about 97,919 (335)

Investigation of laser dynamics, modulation and control by means of intra-cavity time varying perturbation [PDF]

Work continued on a number of projects aimed at the generation of tunable visible, infrared, and ultraviolet light; and on the control of this light by means of novel mode-locking and modulation techniques.
Harris, S. E.
core   +1 more source

Temperature‐Induced Nonvolatile Switching through Thermal Hysteresis in a Gd3Fe5O12/Ho3Fe5O12 Exchange‐Coupled Rare‐Earth Iron Garnet Bilayer

Advanced Functional Materials, EarlyView.
Reducing power consumption in spintronic memory remains a major challenge due to the need for high current densities. A bilayer of gadolinium and holmium iron garnets enables purely temperature‐induced, nonvolatile magnetic switching with bistable states within a ±25 K range. This approach achieves up to 66‐fold lower energy use than current spin–orbit
Junseok Kim, Phuoc Cao Van, Jong‐Ryul Jeong, Hyungyu Jin   +3 more
wiley   +1 more source

A Q-switched, cavity-dumped YAG laser for use in plasma physics experiments

, 2008
S.R. Leffler
openalex   +1 more source

Q-Switching Nanophotonic Biosensing

Abstract Sensitive, label-free detection of biomarkers is critical for clinical diagnostics. However, conventional nanophotonic biosensors, typically based on single-oscillator architectures, remain confined to either real or imaginary sensing domain. This isolation often results in weak signal responses, limited operational stability, and high
Liaoyong Wen, Jiacheng Sun, Fajun Li, Xudong Wang, Sisi Yan, Jing He, Dangwu Ni, Lang Wang, Shaowei Lin, Min Qiu, Jinfeng Zhu   +10 more
openaire   +1 more source

Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing

Advanced Functional Materials, EarlyView.
Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu, Ming Lei, Yuanzhe Liang, Biao Qi, Ziyi Dai, Yong Zhao, Bingpu Zhou   +6 more
wiley   +1 more source

Investigation on the Stability of WSe₂-PVA Saturable Absorber in an all PM Q-Switched Fiber Laser

, 2016
Chaoshi Guo, Bohua Chen, Hao Wang, Xiaoyan Zhang, Jun Wang, Kan Wu, Jianping Chen   +6 more
openalex   +1 more source

Laser Q-switching [PDF]

Nature Photonics, 2014
openaire   +1 more source

Indirect Band Edge and Chain‐Locked Linear Dichroism in the Quasi‐1D Van der Waals Antiferromagnet AgCrP2S6

Advanced Functional Materials, EarlyView.
AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi, Sabrina Juergensen, Václav Valeš, Kumari Surbhi, Martin Mergl, Kseniia Mosina, Zdeněk Sofer, Jan Honolka, Patryk Kusch, Martin Kalbáč   +9 more
wiley   +1 more source

A sensorless control strategy for PMSM based on high frequency square wave voltage injection at low switching frequency

机车电传动
This paper presents an estimation method of rotor position at low speeds for permanent magnet synchronous motors (PMSM), using a high frequency (HF) square wave voltage injection technique at a low switching frequency.
DONG Shifan, JIANG Wei, WANG Xiaofan, QIU Tengfei, ZHOU Minglei, WANG Chenchen   +5 more
doaj  

Diode-pumped laser altimeter [PDF]

TEM(sub 00)-mode output energies up to 22.5 mJ with 23 percent slope efficiencies were generated at 1.064 microns in a diode-laser pumped Nd:YAG laser using a transverse-pumping geometry.
Isyanova, Y., Welford, D.
core   +1 more source