Results 21 to 30 of about 1,986,833 (274)

Integrated dual-laser photonic chip for high-purity carrier generation enabling ultrafast terahertz wireless communications

Nature Communications, 2022
Photonic generation of Terahertz (THz) carriers displays high potential for THz communications with a large tunable range and high modulation bandwidth.
S. Jia, M. Lo, Lu Zhang, O. Ozoliņš, A. Udalcovs, D. Kong, X. Pang, R. Guzmán, Xianbin Yu, S. Xiao, S. Popov, Jiajia Chen, G. Carpintero, T. Morioka, Hao Hu, L. Oxenløwe   +15 more
semanticscholar   +1 more source

Holography with high-power CW coherent terahertz source: optical components, imaging, and applications

Light: Advanced Manufacturing, 2022
This paper presents the results of 15 years of studies in the field of terahertz holography at the Novosibirsk free electron laser. They cover two areas: research on obtaining holographic images in the terahertz range and the use of diffractive optical ...
Yulia Choporova, Boris Knyazev, Vladimir Pavelyev   +2 more
doaj   +1 more source

Terahertz generation from laser-induced plasma

Opto-Electronic Science, 2022
Interest of the research in terahertz (THz) wave has been strongly motivated by its wide applications in the fields of physics, chemistry, biology, and engineering.
Wen-feng Sun, Xin-Ke Wang, Yan Zhang
semanticscholar   +1 more source

Multi-Wavelength Terahertz Parametric Generator Using a Seed Laser Based on Four-Wave Mixing

Photonics, 2022
In this study, we developed a multi-wavelength terahertz-wave parametric generator that operates with only one injection seeding laser. Tunable lasers used as an injection seeder must be single-frequency oscillators, and conventional multi-wavelength ...
Sota Mine, Kodo Kawase, Kosuke Murate
doaj   +1 more source

Flowing cryogenic liquid target for terahertz wave generation

AIP Advances, 2020
Terahertz wave emission from liquids excited by intense laser pulses not only reflects the details in laser–matter interaction but also offers bright terahertz wave sources.
Yiwen E, Yuqi Cao, Fang Ling, X.-C. Zhang   +3 more
doaj   +1 more source

Subwavelength Diffractive Optical Elements for Generation of Terahertz Coherent Beams with Pre-Given Polarization State

Sensors, 2023
Coherent terahertz beams with radial polarization of the 1st, 2nd, and 3rd orders have been generated with the use of silicon subwavelength diffractive optical elements (DOEs).
Vladimir Pavelyev, Svetlana Khonina, Sergey Degtyarev, Konstantin Tukmakov, Anton Reshetnikov, Vasily Gerasimov, Natalya Osintseva, Boris Knyazev   +7 more
doaj   +1 more source

Superhydrophobic polytetrafluoroethylene surfaces with accurately and continuously tunable water adhesion fabricated by picosecond laser direct ablation

Materials & Design, 2019
Superhydrophobic polytetrafluoroethylene (PTFE) surfaces with accurately and continuously tunable water adhesion were fabricated by a simple and rapid method of picosecond (ps) laser direct ablation.
Zhongli Qin, Jun Ai, Qifeng Du, Jianguo Liu, Xiaoyan Zeng   +4 more
doaj   +1 more source

Strong polarization-controlled terahertz generation by bi-elliptical polarized laser fields

Frontiers in Physics, 2023
Terahertz generation from atoms driven by two color linearly polarized (LP) and circularly polarized (CP) laser fields have been well investigated. In this work, based on the photocurrent model, we investigate theoretically the intensity and polarization
Yan-Mei Liu, Ya-Ning Li, Lei Zhang, Zhi-Hong Jiao, Song-Feng Zhao, Guo-Li Wang   +5 more
doaj   +1 more source

Photonic quasi-crystal terahertz lasers [PDF]

Nature Communications, 2014
AbstractQuasi-crystal structures do not present a full spatial periodicity but are nevertheless constructed starting from deterministic generation rules. When made of different dielectric materials, they often possess fascinating optical properties, which lie between those of periodic photonic crystals and those of a random arrangement of scatterers ...
Vitiello Miriam Serena, Nobile Michele, Ronzani Alberto, Tredicucci Alessandro, Castellano Fabrizio, Talora Valerio, Li Lianhe, Linfield Edmund H, Davies A Giles   +8 more
openaire   +4 more sources

Gas-discharge lasers of the terahertz range [PDF]

RADIOFIZIKA I ELEKTRONIKA, 2017
The terahertz (THz) frequency range now attracts much attention of researchers and consumers in connection with many possibilities of using it for solving a number of practical problems in science, technology and medicine. Therefore, the development of new sources of radiation and the improvement of the existing ones are actual.
M. I. Dzyubenko, Y. E. Kamenev, V. P. Radionov   +2 more
openaire   +2 more sources