Zobrazeno 1 - 10
of 8 360
pro vyhledávání: '"terahertz emission"'
In spintronic terahertz emitters, THz radiation is generated by exciting an ultrafast spin current through femtosecond laser excitation of a ferromagnetic-nonmagnetic metallic heterostructure. Although an extensive phenomenological knowledge has been
Externí odkaz:
http://arxiv.org/abs/2411.14167
Autor:
Handa, Taketo, Huang, Chun-Ying, Li, Yiliu, Olsen, Nicholas, Chica, Daniel G., Xu, David D., Sturm, Felix, McIver, James W., Roy, Xavier, Zhu, Xiaoyang
Exfoliation and stacking of two-dimensional (2D) van der Waals (vdW) crystals have created unprecedented opportunities in the discovery of quantum phases. A major obstacle to the advancement of this field is the limited spectroscopic access due to a
Externí odkaz:
http://arxiv.org/abs/2411.09421
Autor:
Chan, Yao-Jui, Faizanuddin, Syed Mohammed, Kalaivanan, Raju, Raman, Sankar, Lin, Hsin, Kar, Uddipta, Singh, Akhilesh Kr., Lee, Wei-Li, Vankayala, Ranganayakulu K., Ou, Min-Nan, Wen, Yu-Chieh
Spectroscopic identification of distinct nonlinear photocurrents unveils quantum geometric properties of electron wavefunctions and the momentum-space topological structures. This is especially interesting, but still puzzling, for chiral topological
Externí odkaz:
http://arxiv.org/abs/2409.05424
Autor:
Kollarics, Sándor, Márkus, Bence Gábor, Kucsera, Robin, Thiering, Gergő, Gali, Ádám, Németh, Gergely, Kamarás, Katalin, Forró, László, Simon, Ferenc
Publikováno v:
Sci. Adv.10, eadn0616 (2024)
Coherent light sources emitting in the terahertz range are highly sought after for fundamental research and applications. THz lasers rely on achieving population inversion. We demonstrate the generation of THz radiation using nitrogen-vacancy (NV) ce
Externí odkaz:
http://arxiv.org/abs/2406.16616
Autor:
Rizaev, Georgy, Pushkarev, Dmitrii, Levus, Maximilian, Vrublevskaya, Nadezhda, Seleznev, Leonid
An experimental study of laser pulse duration influence on the terahertz emission during single-color filamentation is carried out. It is shown that for each terahertz frequency there is an optimal laser pulse duration providing maximal generation at
Externí odkaz:
http://arxiv.org/abs/2405.04413
Autor:
Wieland, Raphael, Kizilaslan, Olcay, Kinev, Nickolay, Dorsch, Eric, Guénon, Stefan, Song, Ziyu, Wei, Zihan, Wang, Huabing, Wu, Peiheng, Koelle, Dieter, Koshelets, Valery P., Kleiner, Reinhold
Suitably patterned single crystals made of the cuprate superconductor Bi$_2$Sr$_2$CaCu$_2$O$_{8+x}$ (BSCCO), intrinsically forming a stack of Josephson junctions, can generate electromagnetic radiation in the lower terahertz regime. Due to Joule heat
Externí odkaz:
http://arxiv.org/abs/2405.20742
Autor:
Maity, Srimanta, Arora, Garima
High-field terahertz (THz) pulse generation is investigated through the interaction of an intense single-color CO2 laser pulse with helium (He) gas targets. Employing multi-dimensional Particle-In-Cell (PIC) simulations, this study reveals a substant
Externí odkaz:
http://arxiv.org/abs/2405.12526
Autor:
Saleem, Muhammad Farooq, Ashraf, Ghulam Abbas, Iqbal, Muhammad Faisal, Khan, Rashid, Javid, Muhammad, Wang, Tianwu
InGaN quantum wells (QWs) grown on c-plane sapphire substrate experience strain due to the lattice mismatch. The strain generates a strong piezoelectric field in QWs that contributes to THz emission under ultrafast excitation. Physical parameters suc
Externí odkaz:
http://arxiv.org/abs/2404.02398
Akademický článek
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Autor:
Wang, Suyun1 (AUTHOR) wang-suyun@nict.go.jp
Publikováno v:
Remote Sensing. Nov2024, Vol. 16 Issue 21, p4037. 20p.
