Results 91 to 100 of about 12,195 (298)

Characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz wave

AIP Advances, 2020
To study the characteristics of transition metal dichalcogenides (TMDCs) in the THz regime, several kinds of terahertz modulators based on TMDCs were fabricated.
Zhiyuan Fan, Zhaoxin Geng, Weihao Fang, Xiaoqing Lv, Yue Su, Shicai Wang, Jian Liu, Hongda Chen   +7 more
doaj   +1 more source

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

Advanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu, Fulu Zheng, San‐Dong Guo, Thomas Frauenheim, Zhaobo Zhou, Junjie He   +5 more
wiley   +1 more source

Contactless Terahertz “Fiber Squeezer” for Tunable Dispersion Engineering in Unclad Silicon Dielectric Waveguides

Advanced Photonics Research
The advancement of terahertz technology is impeded by a lack of viable options for dynamic reconfigurability in compact systems with fixed low‐loss interconnect.
Daniel Headland, Yuma Kawamoto, Jordan Nedosyko, Tadao Nagatsuma, Masayuki Fujita, Guillermo Carpintero   +5 more
doaj   +1 more source

Pholidota‐Inspired Electronic Skin Possessing Terahertz‐Wave Reflection–Absorption–Transmission Switchability

Advanced Science, EarlyView.
The pholidota‐inspired electronic skin is successfully constructed, originally realized four‐state reversible switching of terahertz‐wave reflection, absorption, transmission, and secondary reflection. In response to external demands, it issues deformation instructions, verifies the deformation state after the equipment executes the action, and thus ...
Shangjing Li, Jiangsong Hou, Yifeng Ruan, Jiang Du, Jun Qiu   +4 more
wiley   +1 more source

Passively mode-locked diode-pumped surface-emitting semiconductor laser

, 2000
A surface-emitting semiconductor laser has been passively mode locked in an external cavity incorporating a semiconductor saturable absorber mirror. The gain medium consists of a stack of 12 InGaAs-GaAs strained quantum wells, grown above a Bragg mirror ...
Tropper, A.C., Morier-Genoud, F., F. Morier-Genoud, J. S. Roberts, Roberts, J.S., Garnache, A., A. C. Tropper, Keller, U., Paschotta, R., A. Garnache, Oesterle, U., S. Dhanjal, U. Oesterle, Dhanjal, S., Häring, R., R. Häring, R. Paschotta, S. Hoogland, U. Keller, Hoogland, S.   +19 more
core   +1 more source

Dynamic Terahertz Investigation of Nanoparticle-assisted Laser-tissue Interaction

, 2020
In this work, we capitalize on the unique properties of terahertz radiation to investigate nanoparticle-assisted laser-tissue interaction. We demonstrate the promising capability of the proposed technique to perform the simultaneous monitoring of laser ...
Razzari L., Caraffini D., Govorov A. O., Piccoli R., Besteiro L. V., Morandotti R., Wang Z. M., Naccache R., Breitenborn H., You P., Dong J., Vetrone F.   +11 more
core   +1 more source

Retina‐Inspired Bi‐Based Terahertz Photonic Neuromorphic Devices

Advanced Science, EarlyView.
Combined with effective band alignment and substrate engineering, bismuth materials are introduced to form terahertz photonic bio‐inspired devices with picosecond short‐term plasticity to enable multi‐scene visual perception. Thus obtained hardware through the terahertz optical neural network (THz‐ONN) demonstrates high recognition accuracy, providing ...
Pujing Zhang, Donggang Xie, Longyu Shi, Mengyuan Wang, Huiwen Shi, Yu Wu, Menglei Li, Guangwei She, Peijie Wang, Wensheng Shi, Cunlin Zhang, Kuijuan Jin, Guozhen Yang, Qingli Zhou, Chen Ge   +14 more
wiley   +1 more source

Systematic experimental study on a highly efficient terahertz source based on two-color laser-induced air plasma

, 2016
In this paper, highly efficient terahertz radiation generated by two-color femtosecond laser-induced air plasma is reported. A number of variables that can obviously influence terahertz generation and detection have been investigated systematically.
Xie, Jun, Fan, Wen-Hui, Chen, Xu
core   +1 more source

High-energy coherent terahertz radiation emitted by wide-angle electron beams from a laser-wakefield accelerator

New Journal of Physics, 2018
High-charge electron beams produced by laser-wakefield accelerators are potentially novel, scalable sources of high-power terahertz radiation suitable for applications requiring high-intensity fields.
Xue Yang, Enrico Brunetti, Dino A Jaroszynski   +2 more
doaj   +1 more source

Defect‐Functionalization‐Mediated Tunneling Drives Nonlinear Photoemission in Perovskites

Advanced Science, EarlyView.
This cover illustration depicts CsPbBr3 perovskite nanocrystals embedded with functionalized defect vacancies, where electrons migrate through defect‐mediated pathways and emit as lightning‐like beams. The imagery visualizes the core discovery of our work—defect‐functionalization‐mediated tunneling enabling nonlinear photoemission, where deep‐level ...
Hang Ren, Xi Zhang, Yicheng Wang, Shuai Wang, Zhi Wang, Yumeng Li, Jikai Yang, Xin Wang, Weijun Chen, Yining Mu   +9 more
wiley   +1 more source