Results 51 to 60 of about 78,821 (320)

Broadband THz Sources from Gases to Liquids

Ultrafast Science, 2021
Matters are generally classified within four states: solid, liquid, gas, and plasma. Three of the four states of matter (solid, gas, and plasma) have been used for THz wave generation with short laser pulse excitation for decades, including the recent ...
Yiwen E, Liangliang Zhang, Anton Tcypkin, Sergey Kozlov, Cunlin Zhang, X.-C. Zhang   +5 more
doaj   +1 more source

Possible generation of $γ$-ray laser by electrons wiggling in a background laser [PDF]

Chin. Phys. B24 (2015) 054208, 2014
The possibility of $\gamma-$ray laser generation by the radiation of wiggling electrons in an usual background laser is discussed.
arxiv   +1 more source

Covalently‐Bonded Diaphite Nanoplatelet with Engineered Electronic Properties of Diamond

Advanced Functional Materials, EarlyView.
A novel approach to engineering the electronic properties of diamond is reported on the diaphite nanoplatelet consisting of (11¯${{\bar{1}}}$1) planes of diamond nanoplatelet covalently bonded with graphite (0001) planes. The strong sp3/sp2‐hybridized interfacial covalent bonding induces the electron transfer from diamond to graphite, resulting in a ...
Zhaofeng Zhai, Chuyan Zhang, Bin Chen, Ying Xiong, Yan Liang, Lusheng Liu, Bing Yang, Nianjun Yang, Xin Jiang, Nan Huang   +9 more
wiley   +1 more source

Laser Shaping and Optimization of the Laser-Plasma Interaction [PDF]

AIP Conf.Proc.569:183-194,2000, 2000
The physics of energy transfer between the laser and the plasma in laser wakefield accelerators is studied. We find that wake excitation by arbitrary laser shapes can be parameterized using the total pulse energy and pulse depletion length. A technique for determining laser profiles that produce the required plasma excitation is developed. We show that
arxiv   +1 more source

Direct Ink Writing of Conductive Hydrogels

Advanced Functional Materials, EarlyView.
This review examines the use of direct ink writing (DIW) for fabricating conductive hydrogels with customizable 3D structures. It outlines the rheological requirements for successful DIW, followed by an exploration of the materials and ink formulations used to impart electronic and/or ionic conductivity to hydrogels while maintaining printability ...
Monica Ho, Aline Braz Ramirez, Negar Akbarnia, Eric Croiset, Elisabeth Prince, Gerald G. Fuller, Milad Kamkar   +6 more
wiley   +1 more source

High-temperature Infrared Transmission of Free-standing Diamond Films

Cailiao gongcheng, 2017
The combination of low absorption and extreme mechanical and thermal properties make diamond a compelling choice for some more extreme far infrared (8-12 μm) window applications. The optical properties of CVD diamond at elevated temperatures are critical
HEI Li-fu, YAN Xiong-bo, ZHU Rui-hua, CHEN Liang-xian, LIU Jin-long, WEI Jun-jun, LIAN Wei-yan, ZHANG Rong-shi, LI Cheng-ming   +8 more
doaj   +1 more source

Fibrous Pb(II)‐Based Coordination Polymer Operable as a Photocatalyst and Electrocatalyst for High‐Rate, Selective CO2‐to‐Formate Conversion

Advanced Functional Materials, EarlyView.
A coordination polymer [Pb(tadt)]n prepared by a microwave‐assisted solvothermal method selectively reduces CO2 into formate under visible light with a high apparent quantum yield of ≈25% at 400 nm. It can function as a pre‐catalyst, along with conductive Ketjen Black, to form an active PbCO3/Pb3(CO3)2(OH)2 mixture that exhibits a high Faradaic ...
Chomponoot Suppaso, Ryosuke Nakazato, Shoko Nakahata, Yoshinobu Kamakura, Fumitaka Ishiwari, Akinori Saeki, Daisuke Tanaka, Kazuhide Kamiya, Kazuhiko Maeda   +8 more
wiley   +1 more source

Femtosecond Laser Filamentation for Atmospheric Sensing

Sensors, 2010
Powerful femtosecond laser pulses propagating in transparent materials result in the formation of self-guided structures called filaments. Such filamentation in air can be controlled to occur at a distance as far as a few kilometers, making it ideally ...
Huai Liang Xu, See Leang Chin
doaj   +1 more source

Introduction to Laser Physics [PDF]

arXiv, 2020
This paper is a basic introduction to laser physics, especially that relevant to accelerator science. It presents the essential physics of a laser, some of the different types of laser system available, the propagation of laser beams, and the key diagnostics that are used for lasers.
arxiv  

The Berkeley tunable far infrared laser spectrometers [PDF]

Review of Scientific Instruments, 1991
A detailed description is presented for a tunable far infrared laser spectrometer based on frequency mixing of an optically pumped molecular gas laser with tunable microwave radiation in a Schottky point contact diode. The system has been operated on over 30 laser lines in the range 10–100 cm−1 and exhibits a maximum absorption sensitivity near one ...
Blake, G. A., Laughlin, K. B., Cohen, R. C., Busarow, K. L., Gwo, D.-H., Schmuttenmaer, C. A., Steyert, D. W., Saykally, R. J.   +7 more
openaire   +3 more sources