Zobrazeno 1 - 10
of 223
pro vyhledávání: '"Lee, Seong Ku"'
Autor:
Hojbota, Calin Ioan, Mirzaie, Mohammad, Kim, Do Yeon, Pak, Tae Gyu, Rezaei-Pandari, Mohammad, Pathak, Vishwa Bandhu, Jeon, Jong Ho, Yoon, Jin Woo, Sung, Jae Hae, Lee, Seong Ku, Kim, Chul Min, Kim, Ki Yong, Nam, Chang Hee
Petawatt-class lasers can produce multi-GeV electron beams through laser wakefield electron acceleration. As a by-product, the accelerated electron beams can generate broad synchrotron-like radiation known as betatron radiation. In the present work,
Externí odkaz:
http://arxiv.org/abs/2211.07963
Autor:
Wang, Pengjie, Gong, Zheng, Lee, Seong Geun, Shou, Yinren, Geng, Yixing, Jeon, Cheonha, Kim, I Jong, Lee, Hwang Woon, Yoon, Jin Woo, Sung, Jae Hee, Lee, Seong Ku, Kong, Defeng, Liu, Jianbo, Mei, Zhusong, Cao, Zhengxuan, Pan, Zhuo, Choi, Il Woo, Yan, Xueqing, Nam, Chang Hee, Ma, Wenjun
Publikováno v:
Phys. Rev. X 11, 021049 (2021)
The acceleration of super-heavy ions (SHIs) from plasmas driven by ultrashort (tens of femtoseconds) laser pulses is a challenging topic waiting for breakthrough. The detecting and controlling of the ionization process, and the adoption of the optima
Externí odkaz:
http://arxiv.org/abs/2008.09358
Autor:
Rao, Bobbili Sanyasi, Cho, Myung Hoon, Kim, Hyung Taek, Shin, Jung Hun, Oh, Kyung Hwan, Jeon, Jong Ho, Yoo, Byung Ju, Cho, Seong Ha, Lee, Seong Ku, Nam, Chang Hee
Publikováno v:
Phys. Rev. Research 2, 043319 (2020)
Laser wakefield accelerators rely on relativistically moving micron-sized plasma cavities that provide extremely high electric field >100GV/m. Here, we demonstrate transverse shaping of the plasma cavity to produce controlled sub-GeV electron beams,
Externí odkaz:
http://arxiv.org/abs/2007.01064
We demonstrate efficient multicycle terahertz pulse generation at 14.6 THz from large-area lithium niobate crystals by using high-energy (up to 2 J) femtosecond Ti:sapphire laser pulses. Such terahertz radiation is produced by phase-matched optical r
Externí odkaz:
http://arxiv.org/abs/2003.11715
Akademický článek
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Publikováno v:
In Optics and Laser Technology August 2023 163
We demonstrate high-energy terahertz generation from a large-aperture (75 mm diameter) lithium niobate wafer by using a femtosecond laser with energy up to 2 J. This scheme utilizes optical rectification in a bulk lithium niobate crystal, where most
Externí odkaz:
http://arxiv.org/abs/1907.07704
Autor:
Aniculaesei, Constantin, Pathak, Vishwa Bandhu, Oh, Kyung Hwan, Hojbota, Calin Ioan, Singh, Prashant Kumar, Lee, Bo Ram, Kim, Hyung Taek, Brunetti, Enrico, Yoo, Byung Ju, Sung, Jae Hee, Lee, Seong Ku, Nam, Chang Hee
Publikováno v:
Phys. Rev. Applied 12, 044041 (2019)
In the present work, we demonstrate for the first time a proof-of-principle experiment for nanoparticle-assisted laser wakefield acceleration. The nanoparticles, generated through laser ablation of aluminium, were introduced into the plasma and used
Externí odkaz:
http://arxiv.org/abs/1902.00921
Autor:
Aniculaesei, Constantin, Pathak, Vishwa Bandhu, Kim, Hyung Taek, Oh, Kyung Hwan, Yoo, Byung Ju, Brunetti, Enrico, Jang, Yong Ha, Hojbota, Calin Ioan, Shin, Junghun, Jeon, Jeong Ho, Cho, Seongha, Cho, Myung Hoon, Sung, Jae Hee, Lee, Seong Ku, Hegelich, Björn Manuel, Nam, Chang Hee
The phase velocity of the wakefield of a laser wakefield accelerator can, theoretically, be manipulated by shaping the longitudinal plasma density profile, thus controlling the parameters of the generated electron beam. We present an experimental met
Externí odkaz:
http://arxiv.org/abs/1809.02899
Autor:
Ma, W. J., Kim, I Jong, Yu, J. Q., Choi, Il Woo, Singh, P. K., Lee, Hwang Woon, Sung, Jae Hee, Lee, Seong Ku, Lin, C., Liao, Q., Zhu, J. G., Lu, H. Y., Liu, B., Wang, H. Y., Xu, R. F., He, X. T., Chen, J. E., Zepf, M., Schreiber, J., Yan, X. Q., Nam, Chang Hee
Publikováno v:
Phys. Rev. Lett. 122, 014803 (2019)
We report the experimental generation of highly energetic carbon ions up to 48 MeV per nucleon by shooting double-layer targets composed of well-controlled slightly underdense plasma (SUP) and ultrathin foils with ultra-intense femtosecond laser puls
Externí odkaz:
http://arxiv.org/abs/1801.10338