Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Hyung Seon Song"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract We present a novel scheme to obtain robust, narrowband, and tunable THz emission using a nano-dimensional overdense plasma target, irradiated by two counter-propagating detuned laser pulses. So far, no narrowband THz sources with a field str
Externí odkaz:
https://doaj.org/article/95172a82aa874cc192dbd1bd6d353f79
Autor:
Jaeho Lee, Hyung Seon Song, Dohyun Park, Manoj Kumar, Bernhard Ersfeld, Samuel R. Yoffe, Dino A. Jaroszynski, Min Sup Hur
Publikováno v:
Physics of Plasmas. 30
A practical configuration for generating narrowband terahertz (THz) pulses based on plasma dipole oscillations (PDOs) is studied using two-dimensional particle-in-cell simulations. In this scheme, two slightly detuned laser pulses collide obliquely i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a41cb3627c4acc25266550b06d0e8e7
https://doi.org/10.1063/5.0142159
https://doi.org/10.1063/5.0142159
Publikováno v:
Journal of the Korean Physical Society. 80:852-858
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59643f7e43ac9a17f491f687a3379402
https://doi.org/10.1007/s40042-021-00390-x
https://doi.org/10.1007/s40042-021-00390-x
Autor:
MinSup Hur, Bernhard Ersfeld, Hyojeong Lee, Hyunseok Kim, Kyungmin Rho, Yunkyu Lee, Hyung Seon Song, Manoj Kumar, Samuel Yoffe, Dino Jaroszynski, Hyyong Suk
We propose a new method of compressing laser pulses to ultra-high powers based on spatially varying dispersion of a plasma plume that has a density gradient. Here, compression is achieved when a long, negatively frequency-chirped laser pulse reflects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cb4506e908380ae4b14a96c2b36d045
https://doi.org/10.21203/rs.3.rs-2307612/v1
https://doi.org/10.21203/rs.3.rs-2307612/v1
Publikováno v:
Physics of Plasmas. 29:033102
We studied the THz radiation generated by a beam-plasma system using two-dimensional (2D) particle-in-cell (PIC) simulations. The Langmuir waves excited by two counterpropagating electron beams, via two-stream instability, collide with each other at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26ade6559199bb62624939b8488e6e79
https://doi.org/10.1063/5.0073570
https://doi.org/10.1063/5.0073570
Autor:
Ronghuan Lin, Salizhan Kylychbekov, Sebastian Rodriguez, Barry Gross, Kwangmin Yu, Min Sup Hur, Jhair Alzamora, Paulo Castillo, Hyung Seon Song, David Wan
Publikováno v:
Technologies for Optical Countermeasures XVII; and High-Power Lasers: Technology and Systems, Platforms, Effects IV.
Laser-plasma interactions have many theoretical and technological applications. One is the use of coherently accelerated electrons to provide novel sources of THz radiation. Our research focuses on simulating the cross/self-interactions between two h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b04022a333f7d9d56fd06ce28a728453
https://doi.org/10.1117/12.2576280
https://doi.org/10.1117/12.2576280
Autor:
Bernhard Ersfeld, Dino A. Jaroszynski, Kyu Been Kwon, Min Sup Hur, Hyung Seon Song, Teyoun Kang, Adam Noble
Publikováno v:
Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III
It is well known that an infinite homogeneous Langmuir wave, formed by accelerating charged particles, it does not emit electromagnetic radiation because of its electrostatic nature, which is represented by the zero curl of the electric field. To rea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f33f01a4d49bdc38caae3d346e8d5922
https://strathprints.strath.ac.uk/68281/1/Hur_etal_SPIE_2019_Radiation_emission_from_plasma_oscillation.pdf
https://strathprints.strath.ac.uk/68281/1/Hur_etal_SPIE_2019_Radiation_emission_from_plasma_oscillation.pdf
Publikováno v:
Physics of Plasmas. 28:033101
We studied and demonstrated the emission of THz waves by the beating of two CW-laser beams in an axially modulated plasma in the presence of a static magnetic field (applied transversely to the direction of propagation of lasers) from two-dimensional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e47f870b2394a753aed411d312c070bd
https://doi.org/10.1063/5.0033833
https://doi.org/10.1063/5.0033833
Autor:
Hyung Seon Song, Myung-Hoon Cho, Moon Youn Jung, Young-Kuk Kim, Teyoun Kang, Hyung Ju Park, Min Sup Hur
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics. 92(4)
We investigated ion acceleration by an electrostatic shock in an exploded target irradiated by an ultrashort, circularly polarized laser pulse by means of one- and three-dimensional particle-in-cell simulations. We discovered that the laser field pen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba0db69c895859ee408344af7a9c8b29
https://pubmed.ncbi.nlm.nih.gov/26565351
https://pubmed.ncbi.nlm.nih.gov/26565351
Publikováno v:
Plasma Physics and Controlled Fusion. 58:025006
We investigated the possibility of pin pointing the local density and magnetic field of an inhomogeneous, magnetized plasma by stimulated Raman scattering of a pump laser pulse focused on a desired position. As the Raman growth rate is proportional t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03107df8afb7859ede6799c7caf85562
https://doi.org/10.1088/0741-3335/58/2/025006
https://doi.org/10.1088/0741-3335/58/2/025006