Results 51 to 60 of about 1,986,833 (274)

Directivity Control of Terahertz Radiation from Single-Color Filament Plasma with Polypropylene Pipe

Photonics, 2023
Two-dimensional angular distribution of terahertz emission from single-color filamentation of laser pulses is experimentally studied. The use of a polypropylene pipe makes it possible to transform the angular pattern of terahertz radiation from the ...
Daria Mokrousova, Leonid Seleznev, Dmitrii Pushkarev, Georgy Rizaev, Maximilian Levus, Andrey Koribut, Yakov Grudtsyn   +6 more
doaj   +1 more source

Terahertz Spectroscopy of Gas Mixtures with Dual Quantum Cascade Laser Frequency Combs

, 2020
Terahertz laser frequency combs based on quantum cascade lasers provide coherent, broadband, electrically pumped, THz radiation sources for use in future spectroscopic applications.
L. Sterczewski, J. Westberg, Yang Yang, D. Burghoff, J. Reno, Q. Hu, G. Wysocki   +6 more
semanticscholar   +1 more source

Reconfiguration of magnetic domain structures of ErFeO3 by intense terahertz free electron laser pulses

Scientific Reports, 2020
Understanding the interaction between intense terahertz (THz) electromagnetic fields and spin systems has been gaining importance in modern spintronics research as a unique pathway to realize ultrafast macroscopic magnetization control.
T. Kurihara, K. Hirota, H. Qiu, Khoa Thanh Nhat Phan, Kosaku Kato, G. Isoyama, M. Nakajima   +6 more
semanticscholar   +1 more source

Broadband terahertz wave generation from an epsilon-near-zero material

Light: Science & Applications, 2021
Terahertz radiation: thin film enhancement A new method for generating terahertz waves exploits the low-permittivity properties of an ultrathin film.
Wenhe Jia, Meng Liu, Yongchang Lu, Xi Feng, Qingwei Wang, Xueqian Zhang, Yibo Ni, Futai Hu, Mali Gong, Xinlong Xu, Yuanyuan Huang, Weili Zhang, Yuanmu Yang, Jiaguang Han   +13 more
doaj   +1 more source

Spectrum of Terahertz Emission from Single-Color Filament Plasma under Different Laser Beam Focusing

Photonics, 2023
The spectrum of terahertz radiation generated in plasma of a single-color laser filament is observed, using a new technique based on obtaining two-dimensional angular distributions at different frequencies.
Georgy Rizaev, Dmitrii Pushkarev, Leonid Seleznev   +2 more
doaj   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, Volume 36, Issue 43, 29 May 2026.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Real-Time 0.89 THz Terahertz Imaging with High-Electron-Mobility Transistor Detector and Hydrogen Cyanide Laser for Non-Destructive Nut Detection

Micromachines
We present a method for real-time terahertz imaging that employs a hydrogen cyanide (HCN) laser as a terahertz source at 0.89 THz and an AlGaN/GaN high-electron-mobility transistor (HEMT) terahertz detector as a camera.
Nu Zhang, Haiqing Liu, Huihui Yan, Hongbei Wang, Jiaxing Xie, Yinxian Jie, Damao Yao   +6 more
doaj   +1 more source

Terahertz Generation by Optical Rectification of 780 nm Laser Pulses in Pure and Sc-Doped ZnGeP₂ Crystals

Photonics, 2022
Terahertz wave generation through the optical rectification of 780 nm femtosecond laser pulses in ZnGeP2 crystals has been studied. All of the possible interactions of types I and II were analyzed by modeling and experimentally.
Vladimir Voevodin, Svetlana Bereznaya, Yury S. Sarkisov, Nikolay N. Yudin, Sergey Yu. Sarkisov   +4 more
doaj   +1 more source

Terahertz semiconductor laser chaos

Nature Communications
Abstract Chaos characterized by its irregularity and high sensitivity to initial conditions finds various applications in secure optical communications, random number generations, light detection and ranging systems, etc. Semiconductor lasers serve as ideal light platforms for chaos generations owing to the advantages in on-chip ...
Binbin Liu, Carlo Silvestri, Kang Zhou, Xuhong Ma, Shumin Wu, Ziping Li, Wenjian Wan, Zhenzhen Zhang, Ying Zhang, Junsong Peng, Heping Zeng, Cheng Wang, Massimo Brambilla, Lorenzo Luigi Columbo, Hua Li   +14 more
openaire   +5 more sources

Active photonic crystal terahertz laser

Optics Express, 2009
We present the design and the realization of active photonic crystal (PhC) semiconductor lasers. The PhC consists of semiconductor nanostructure pillars which provide gain at a quantized transition energy. The vertical layer sequence is that of a terahertz quantum cascade laser.
A, Benz, Ch, Deutsch, G, Fasching, K, Unterrainer, A M, Andrews, P, Klang, W, Schrenk, G, Strasser   +7 more
openaire   +2 more sources