Results 31 to 40 of about 2,677,605 (251)

Terahertz pump-probe experiment at the synchrotron light source MLS [PDF]

, 2013
We have developed a pump-probe experiment utilizing broad-band coherent terahertz synchrotron radiation provided by the Metrology Light Source (MLS).
H.-W. Hubers, Hoehl, Arne, Pohl, Andreas, Ulm, Gerhard, Müller, Ralph, R. Muller, Pavlov, Sergey, A. Pohl, S. G. Pavlov, M. Ries, G. Wustefeld, Wüstefeld, Godehard, Hübers, Heinz-Wilhelm, Ries, Markus, G. Ulm, A. Hoehl   +15 more
core   +1 more source

Recent progress in terahertz difference-frequency quantum cascade laser sources

Nanophotonics, 2018
Terahertz quantum cascade laser (QCL) sources based on intra-cavity difference frequency generation are currently the only electrically pumped monolithic semiconductor light sources operating at room temperature in the 1–6-THz spectral range.
Fujita Kazuue, Jung Seungyong, Jiang Yifan, Kim Jae Hyun, Nakanishi Atsushi, Ito Akio, Hitaka Masahiro, Edamura Tadataka, Belkin Mikhail A.   +8 more
doaj   +1 more source

Dynamic modeling of Terahertz Quantum cascade lasers [PDF]

, 2011
In this paper, the influence of the simplifications made in the four-equation-based set of rate equations describing the dynamic behavior of a Quantum Cascade Laser (QCL) is studied.
Petitjean, Yoann, Destic, Fabien, Mollier, Jean-Claude, Sirtori, Carlo   +3 more
core   +1 more source

A Perspective on Terahertz Next-Generation Wireless Communications

Technologies, 2019
In the past year, fifth-generation (5G) wireless technology has seen dramatic growth, spurred on by the continuing demand for faster data communications with lower latency.
John F. O’Hara, Sabit Ekin, Wooyeol Choi, Ickhyun Song   +3 more
doaj   +1 more source

Optical Terahertz Sources Based on Difference Frequency Generation in Nonlinear Crystals

Crystals, 2022
Terahertz (THz) sources, ranging from 0.1 THz to 10 THz, between microwaves and infrared waves, have important applications in spectral detection, medical imaging, communication, etc.
Yang Liu, Kai Zhong, Aiqiang Wang, Mengchen Zhou, Shanchuang Li, Lu Gao, Ze Zhang   +6 more
doaj   +1 more source

Enhanced terahertz third-harmonic generation by bound states in the continuum in graphene grating-like metamaterial

Frontiers in Physics, 2023
Non-linear metamaterials hold great promise for enhanced terahertz harmonic generation. Here, we numerically investigate enhanced terahertz third-harmonic generation (THG) by exploiting the symmetry-protected bound states in the continuum (BICs) in ...
Baoku Wang, Jing Liu, Jinhui Cui, Jialin Liu, Fengjun Tian, Weimin Sun, Li Li, Li Li   +7 more
doaj   +1 more source

Generation of Terahertz Radiation by Two-Color Ionizing Laser Pulses with Arbitrary Intensity Ratios

Photonics, 2020
The dependence of the terahertz energy generated by two-color femtosecond ionizing pulses on intensities of both one-color components is studied. The numerical calculations are supported with analytical formulas which help to reveal the nature of these ...
Ivan Laryushin
doaj   +1 more source

A Chirped Characteristic-Tunable Terahertz Source for Terahertz Sensing

Sensors
In broadband terahertz waves generated by femtosecond lasers, spatial chirp will be simultaneously produced with the introduction of angular dispersion.
Feilong Gao, Mingzhe Jiang, Shaodong Hou
doaj   +1 more source

Intra-pulse difference frequency generation in ZnGeP2 for high-frequency terahertz radiation generation

Scientific Reports, 2023
The highly-nonlinear chalcopyrite crystal family has experienced remarkable success as source crystals in the mid-infrared spectral range, such that these crystals are primary candidates for producing high terahertz frequency (i.e., $$\gtrsim$$ ≳ 10 THz)
B. N. Carnio, M. Zhang, K. T. Zawilski, P. G. Schunemann, O. Moutanabbir, A. Y. Elezzabi   +5 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