Publication

[2024]


Nonequilibrium Electron-Phonon Coupling in Warm Dense Copper

Gyeongbo Kang, Gyusang Lee, Changhoo Lee, Ahhyun Seong, Sam Azadi, Robert Carley, Loïc Le Guyader, Le Phuong Hoang, Minju Kim, Laurent Mercadier, Giuseppe Mercurio, Sergii Parchenko, Martin Teichmann, Benjamin E. Van Kuiken, Zhong Yin, Sam M. Vinko, Andreas Scherz, Byoung Ick Cho

- submitted


Numerical Investigation of Non-equilibrium Electron Effects on the Collisional Ionization Rate in the Collisional-Radiative Model

M. S. Cho, H.-K.Chung, M. E. Foord, S. Libby and B. I. Cho

Physical Review E 109, 045207 (2024)


High energy resolution off-resonant spectroscopy with self-seeded XFEL pulses

Jang Hyeob Sohn, Gyeongbo Kang, Tae-Kyu Choi, Gyusang Lee, Changhoo Lee, Sae Hwan Chun, Jaeku Park, Dongbin Shin, Byoung Ick Cho

Structural Dynamics 11, 024304 (2024)



[2023]


Resonant X-ray emission spectroscopy using self-seeded hard X-ray pulses at PAL-XFEL

Tae-Kyu Choi,  Jaeku Park,  Gyujin Kim,  Hoyoung Jang,  Sang-Youn Park,  Jang Hyeob Sohn,  Byoung Ick Cho,  Hyunjung Kim,  Kyung Sook Kim,  Inhyuk Nam, and  Sae Hwan Chun

Journal of Synchrotron Radiation 30, 1038-1047 (2023)


Opacity Calculations for Aluminum, Hydrogen, and Gold Using FLYCHK with Improved Free-Free Opacity Formalism

J. H. Sohn, M. S. Cho, H.-K. Chung, B. I. Cho, S. J. Hahn

Current Applied Physics 51, 53-63 (2023)


Diagnosis of ultrafast surface dynamics of thin foil targets irradiated by intense laser pulses

L. J. BAE, G. B. KANG, M. KIM, G. S. LEE, J. H. SOHN, C. H. NAM, AND B. I. CHO

Optics Express 31, 5767-5776 (2023)

[2022]


Review of laser-plasma physics research and applications in Korea

W. Bang, B. I. Cho, M. H. Cho, M. S. Cho, M. Chung, M. S. Hur, G. Kang, K. Kang, T. Kang, C. Kim, H. N. Kim, J. Kim, K. B. Kim, K. N. Kim, M. Kim, M. S. Kim, M. Kumar, H. Lee, H. W. Lee, K. Lee, I. Nam, S. H. Park, V. Phung, W. J. Ryu, S. Y. Shin, H. S. Song, J. Song, J. Won, and H. Suk

Journal of Korean Physical Society 80, 698-716 (2022)

[2021]


Investigation of Nonequilibrium Electronic Dynamics of Warm Dense Copper with Femtosecond X-ray Absorption Spectroscopy

Jong-Won Lee, Minju Kim, Gyeongbo Kang, Sam M. Vinko, Leejin Bae, Min Sang Cho, Hyun-Kyung Chung, Minseok Kim, Soonnam Kwon, Gyusang Lee, Chang Hee Nam, Sang Han Park, Jang Hyeob Sohn, Seong Hyeok Yang, Ulf Zastrau, Byoung Ick Cho

Physical Review Letters 127, 175003 (2021)


Investigation of Warm Dense Matter using Time-resolved X-ray Absorption Spectroscopy with 3rd and 4th Generation Light Sources

Gyeongbo Kang, Byoung Ick Cho

Current Applied Physics 30, 58-68 (2021)


Advanced materials characterization using synchrotron radiation

Jun Woo Choi, Jung Hwa Seo, Byoung Ick Cho, Dong Ryeol Lee, Young Jun Chang

Current Applied Physics 30, 1-3 (2021)


Effect of hot electron kinetics on self-reflectivity of warm dense gold irradiated with femtosecond laser pulses

Minju Kim, Jae Hyung Jung, Seong Hyeok Yang, Min Sang Cho, Gyeongbo Kang, Gyusang Lee, Jong-Won Lee, Suhyeon Lee, Janghyeob Sohn, and Byoung Ick Cho

Applied Surface Science 561, 150073 (2021)


Analysis on FLYCHK Opacity of X-pinch Wire Materials

M. S. Cho, J. H. Sohn, H.-K. Chung, B. I. Cho, S. J. Hahn

Journal of Korean Physical Society 78, 1072 (2021)

[2020]


Opacity Calculation for Aluminum, Iron, and Gold Plasmas using FLYCHK code

M. S. Cho, K. Matsuo, S. Fujioka, S. J. Hahn, B. I. Cho, H.-K. Chung 

Journal of Quantitative Spectroscopy and Radiative Transfer 257, 107369 (2020)


Femtosecond Soft X-ray Absorption Spectroscopy of Warm Dense Matter at the PAL-XFEL

Jong-Won Lee, Gyeongbo Kang, Minju Kim, Minseok Kim, Sang Han Park, Soonnam Kwon, Seonghyeok Yang, and Byoung Ick Cho

Journal of Synchrotron Radiation 27, 953-958 (2020)


Reduction of electron-phonon coupling in warm dense iron

A. Fernandez-Pañella, T. Ogitsu, K. Engelhorn, A. A. Correa, B. Barbrel, S. Hamel, D. G. Prendergast, D. Pemmaraju, M. A. Beckwith, L. J. Bae, J. W. Lee, B. I. Cho, P. A. Heimann, R. W. Falcone, and Y. Ping

Physical Review B 101, 184309 (2020)

[2019]


The impact of free electron degeneracy on collisional rates in plasmas

Gareth O. Williams, H.-K. Chung, S. Ku ̈nzel, V. Hilbert, U. Zastrau, H. Scott, S. Daboussi, B. Iwan, A. I. Gonzalez, W. Boutu, H. J. Lee, B. Nagler, E. Granados, E. Galtier, P. Heimann, B. Barbrel, R. W. Lee, B. I. Cho, P. Renaudin, H. Merdji, Ph. Zeitoun, and M. Fajardo

Physical Review Research 1, 033216 (2019)


X-ray Spectroscopies of High Energy Density Matter Created with X-ray Free Electron Lasers

Byoung Ick Cho

Applied Sciences 9(22), 4812 (2019)


A flat-field soft X-ray spectrometer for X-ray absorption spectroscopy measurement of warm dense matter

Gyeongbo Kang, Minju Kim, Leejin Bae, Seong Hyeok Yang, Min Sang Cho, Chuin Hong Yap, Jae Hyung Jung, Seung Woo Kang, Il Woo Choi, Chang Hee Nam, and Byoung Ick Cho

Nuclear Inst. and Methods in Physics Research A 922, 114-118 (2019)

[2018]


Intensity dependent resonant transmission of x-ray in solid density aluminum plasma

M. S. Cho, H.-K. Chung, and B. I. Cho

Physics of Plasmas 25, 053301 (2018)


Experimental station for ultrafast extreme ultraviolet spectroscopy for non-equilibrium dynamics in warm dense matter

Jong-won Lee, Xiaotao Geng, Jae Hyung Jung, Min Sang Cho, Seong Hyeok Yang, Jawon Jo, Chang-lyoul Lee, Byoung Ick Cho, Dong-Eon Kim

Nuclear Inst. and Methods in Physics Research A 895, 120-125 (2018)


Diagnosis of warm dense conditions in foil targets heated by intense femtosecond laser pulses using Ka imaging spectroscopy

L. J. Bae, U. Zastrau, H. K. Chung, A. C. Bernstein, M. S. Cho, G. M. Dyer, E. Galtier, Z.-H. He, P. A. Heimann, G. B. Kang, M. Kim, Y. H. Kim, H. J. Lee, J. W. Lee, B. Nagler, A. G. R. Thomas, and B. I. Cho

Optics Express 26, 6294 (2018)

[2017]


Observation of Reverse Saturable Absorption of an X-ray Laser

B. I. Cho, M. S. Cho, M. J. Kim, H.-K. Chung, B. Barbrel, K. Engelhorn, T. Burian, J. Chalupský, O. Ciricosta, G. L. Dakovski, V. Hájková, M. Holmes, L. Juha, J. Krzywinski, R. W. Lee, C. H. Nam, D. S. Rackstraw, S. Toleikis, J. J. Turner, S. M. Vinko, J. S. Wark, U. Zastrau, and P. A. Heimann

Physical Review Letters 119, 075002 (2017)


Imaging at an x-ray absorption edge using free electron laser pulses for interface dynamics in high energy density systems

M. A. Beckwith, S. Jiang, A. Schropp, A. Fernandez-Pañella, H. G. Rinderknecht, S. C. Wilks, K. B. Fournier, E. C. Galtier, Z. Xing, E. Granados, E. Gamboa, S. H. Glenzer, P. Heimann, U. Zastrau, B. I. Cho, J. H. Eggert, G. W. Collins and Y. Ping

Review of Scientific Instruments 88, 053501 (2017)


Atomic processes in x-ray free electron laser produced plasmas

H.-K. Chung, B. I. Cho, O. Ciricosta, S. Vinko, J. S. Wark and R. W. Lee

AIP Conference Proceedings 1811, 020001 (2017)


Impurity diagnosis of a KSTAR graphite divertor tile using laser induced breakdown spectroscopy technique

Minju Kim, Min Sang Cho, Byoung Ick Cho

Journal of Nuclear Materials 487, 305 (2017)

[2016]


Measurement of angularly dependent spectra of betatron gamma-rays from a laser plasma accelerator with quadrant-sectored range filters

Jong Ho Jeon, Kazuhisa Nakajima, Hyung Taek Kim, Yong Joo Rhee, Vishwa Bandhu Pathak, Myung Hoon Cho, Jung Hun Shin, Byung Ju Yoo, Sung Ha Jo, Kang Woo Shin, Calin Hojbota,  Lee Jin Bae, Jae Hyuong Jung,  Ming Sang Cho,  Jae Hee Sung, Seung Ku Lee, Byoung Ick Cho,  Il Woo Choi, Chang Hee Nam

Physics of Plasmas 23, 073105 (2016)


Measurements of Continuum Lowering in Solid-density Plasmas created from Elements and Compounds

O. Ciricosta, S. M. Vinko, B. Barbrel, D. S. Rackstraw, T. R. Preston, T. Burian, J. Chalupsky ́, B. I. Cho, H.-K. Chung, G. L. Dakovski, K. Engelhorn, V. H ́ajkov ́a, P. Heimann, M. Holmes, L. Juha, J. Krzywinski, R. W. Lee, S. Toleikis, J. J. Turner, U. Zastrau, and J. S. Wark

Nature Communications 7, 11713 (2016)


Measurement of Electron-Ion Relaxation in Warm Dense Copper

B. I. Cho, T. Ogitsu, K. Engelhorn, A. A. Correa, Y. Ping, J. W. Lee, L. J. Bae, D. Prendergast, R. W. Falcone, and P. A. Heimann

Scientific Reports 6, 18843 (2016)

[2015]


A broadband gamma-ray spectrometry using novel unfolding algorithms for characterization of laser wakefield-generated betatron radiation

Jong Ho Jeon, Kazuhisa Nakajima, Hyung Taek Kim, Yong Joo Rhee, Vishwa Pathak, Myung Hoon Cho, Jung Hun Shin, Byung Ju Yoo, Calin Hojbota, Sung Ha Jo, Kang Woo Shin, JaeHee Sung, Seong Lee, Byoung-Ick Cho, Il Choi, and Chang Hee NAM

Reviews of Scientific Instruments 86, 123116 (2015)


Time evolution of electron structure in femtosecond heated warm dense molybdenum

F. Dorchies,V. Recoules, J. Bouchet, C. Fourment, P.M. Leguay, B.I. Cho, K. Engelhorn, M. Nakatsutsumi, C. Ozkan, T. Tschentscher, M. Harmand, S. Toleikis, M. St ̈ormer, E. Galtier, H.J. Lee, B. Nagler, P.A. Heimann, and J. Gaudin

Physical Review B 92, 144201 (2015)


Electronic structure of warm dense silicon dioxide

K. Engelhorn, V. Recoules, B. I. Cho, B. Barbrel, S. Mazevet, D. M. Krol, R. W. Falcone, and P. A. Heimann

Physical Review B 91, 214305 (2015)


Investigation of Femtosecond Collisional Ionization Rates in a Solid-Density Aluminium Plasma

S. M. Vinko, O. Ciricosta, T. R. Preston, D. S. Rackstraw, C. R. D. Brown, T. Burian, J. Chalupsky ́, B. I. Cho, H. -K. Chung, K. Engelhorn, R. W. Falcone, R. Fiokovinini, C. Graves, V. H ́ajkov ́a, P. A. Heimann, A. Higginbotham, L. Juha, J. Krzywinski, H. J. Lee, R. W. Lee, M. Messerschmidt, C. D. Murphy, B. Nagler, Y. Ping, A. Scherz, W. Schlotter, S. Toleikis, J. J. Turner, L. Vysin, T. Wang, B. Wu, U. Zastrau, D. Zhu, and J. S. Wark,

Nature Communications 6, 6397 (2015)


Saturable absorption of an x-ray free-electron-laser heated solid-density aluminium plasma

D.S. Rackstraw, O. Ciricosta, S.M. Vinko, B. Barbrel, T. Burian, J. Chalupsky ,́ B. I. Cho, H.-K. Chung, G.L.Dakovski, K. Engelhorn, V. Ha j́kov á , P. Heimann, M. Holmes, L. Juha, J. Krzywinski, R.W. Lee, S. Toleikis, J.J. Turner, U. Zastrau, and J.S. Wark

Physical Review Letters 114, 015003 (2015)


Coherent Transition Radiation from Thin Targets Irradiated by High Intensity Laser Pulses

L. J. Bae and B. I. Cho

Current Applied Physics 15, 242-247 (2015)

[2014]


Evidence for a glassy state in strongly driven carbon

C. R. D. Brown, D. O. Gericke, M. Cammarata, B. I. Cho, T. Do ̈ppner, K. Engelhorn, E. Fo ̈rster, C. Fortmann, D. Fritz, E. Galtier, S. H. Glenzer, M. Harmand, P. Heimann, A. Higginbotham, N. Kugland, D. Q. Lamb, H. J. Lee, R. W. Lee, H. Lemke, M. Makita, A. Moinard, C. D. Murphy, B. Nagler, P. Neumayer, R. Redmer, D. Riley, F. B. Rosmej, P. Sperling, S. Toleikis, S. M. Vinko, J. Vorberger, J. Wark, S. White, K. Wuensch, U. Zastrau, T. Tschentscher, and G. Gregori

Scientific Reports 4, 5214 (2014)


Towards simultaneous measurements of electronic and structural properties in ultra-fast x-ray free electron laser absorption spectroscopy experiments

Jérôme Gaudin, Claude Fourment, Byoung-ick Cho, Kyle Engelhorn, Eric Galtier, Marion Harmand, Pierre-Marie Leguay, Hae Ja Lee, Bob Nagler, motoaki nakatsutsumi, Cygdem Ozkan, Michael Störmer, Sven Toleikis, Thomas Tschentscher, Philip Heimann, and Fabien Dorchies,

Scientific Reports 4, 4724 (2014)


Opacity Effects in a Solid-Density Aluminum Plasma Created by Photo-Excitation with an X-Ray Laser

D. S. Rackstraw, S. M. Vinko, O. Ciricosta, B. I. Cho, K. Engelhorn, H. -K. Chung, C. R. D. Brown, T. Burian, J. Chalupsky, R. W. Falcone, C. Graves, V. H ́ajkov ́a, A. Higginbotham, L. Juha, J. Krzywinski, H. J. Lee, M. Messersmidt, C. Murphy, Y. Ping, N. Rohringer, A. Scherz, W. Schlotter, S. Toleikis, J. J. Turner, L. Vysin, T. Wang, B. Wu, U. Zastrau, D. Zhu, B. Nagler, R. W. Lee, P. A. Heimann, J. S. Wark,

High Energy Density Physics 11, 59-69 (2014)

[2012]


Resonant Kα spectroscopy of hot dense aluminum

B. I. Cho, K. Engelhorn, S. M. Vinko, H.-K. Chung, O. Ciricosta, D. S. Rackstraw, R. W. Falcone, C. R. D. Brown, T. Burian, J. Chalupský, C. Graves, V. Hájková, A. Higginbotham, L. Juha, J. Krzywinski, H. J. Lee, M. Messersmidt, C. Murphy, Y. Ping, N. Rohringer, A. Scherz, W. Schlotter, S. Toleikis, J. J. Turner, L. Vysin, T. Wang, B. Wu, U. Zastrau, D. Zhu, R. W. Lee, B. Nagler, J. S. Wark, and P. A. Heimann,

Physical Review Letters 109, 245003 (2012)


Direct Measurements of the Ionization Potential Depression in a Dense Plasma

O. Ciricosta, S. M. Vinko, H. -K. Chung, B. I. Cho, C. D. R. Brown, T. Burian, J. Chalupsky, K. Engelhorn, R. W. Falcone, C. Graves, V. Hajkova, A. Higginbotham, L. Juha, J. Krzywinski, H. J. Lee, M. Messerchmidt, C. Murphy, Y. Ping, D. Rackstraw, A. Scherz, W. Schlotter, S. Toleikis, J. Turner, L. Vysin, T. Wang, B. Wu, U. Zastrau, D. Zhu, R.W. Lee, P. A. Heimann, B. Nagler, J. S. Wark,

Physical Review Letter 109, 065002 (2012)


Ballistic Electron Transport in Non-equlibrium Warm Dense Gold

T. Ogitsu, Y. Ping, A. Correa, B. I. Cho, P. A. Heimann, E. Schwegler, J. Cao, G. W. Collins,

High Energy Density Physics 8, 303 (2012)


Picosecond Single-Shot X-ray Absorption Spectroscopy for Warm and Dense Matter

B. I. Cho, P. A. Heimann, K. Engelhorn, J. Feng, T. E. Glover, M. P. Hertlein, T. Ogitsu, C. P. Weber, A. A. Correa, and R. W. Flacone,

Sychrotron Radiation News 25, 12 (2012)


Creation and diagnosis of solid–density hot-dense matter with an X-ray free-electron laser

S. M. Vinko, O. Ciricosta, B. I. Cho, K. Engelhorn, H.-K. Chung, C. R. D. Brown, T. Burian, J. Chalupský, R. Falcone, C. Graves, V. Hájková, A. Higginbotham, L. Juha, J. Krzywinski, H. J. Lee, M. Messersmidt, C. Murphy, Y. Ping, A. Scherz, W. Schlotter, S. Toleikis, J. Turner, L. Vysin, T. Wang, B. Wu, U. Zastrau, D. Zhu, R. W. Lee, P. A. Heimann, B. Nagler and J. S. Wark,

Nature 482, 59-62 (2012)


Simultaneous Imaging of Kα Radiation and Coherent Transition Radiation from Relativistic-Intensity Laser-Irradiated Solid Target Plasmas

J. Kern, S. Feldman, I. Kim, G. Dyer, B. I. Cho, A. C. Bernstein and T. Ditmire,

High Energy Density Physics 8, 60 (2012)

[2011]


Electron Structure of Warm Dense Copper Studied by Time Resolved X-ray Absorption Spectroscopy

B. I. Cho, K. Engelhorn, A. A. Correa, T. Ogitsu, C. P. Weber, H. J. Lee, J. Feng, P. A. Ni, Y. Ping, A. J. Nelson, D. Prendergast, R. W. Lee, R. W. Falcone, and P. A. Heimann,

Physical Review Letters 106, 167601 (2011)

[2010]


A grazing incidence x-ray streak camera for ultrafast, single-shot measurements

J. Feng, K. Engelhorn, B. I. Cho, H. J. Lee, M. Greaves, C. P. Weber, R. W. Falcone, H. A. Padmore, and P. A. Heimann,

Applied Physics Letters 96, 134102 (2010)

[2009]


Single-shot optical conductivity measurement of dense aluminum plasmas

I. V. Churina, B. I. Cho, A. Bernstein, D. S. Stoker, A. Dalton, D. R. Symes, and T. Ditmire,

Physical Review E 80, 015401 (2009)


Guiding, Focusing, and Collimated Transport of Hot Electrons in a Canal in the Extended Tip of Cone Targets

N. Renard-Le Galloudec, E. d’Humieres, B. I. Cho, J. Osterholz, Y. Sentoku, and T. Ditmire,

Physical Review Letters 102, 205003 (2009)


Characterization of two distinct, simultaneous hot electron beams in intense laser-solid interactions

B. I. Cho, J. Osterholz, A. C. Bernstein, G. M. Dyer, A. Karmakar, A. Pukhov, and T. Ditmire,

Physical Review E 80, 055402 (2009)

[2008]


Controlled reproducible alignment of cone targets and mitigation of preplasma in high intensity laser interactions

N. Renard-Le Galloudec, B. I. Cho, J. Osterholz, and T. Ditmire,

Review of Scientific Instruments 79, 083506 (2008)


Equation-of-State Measurement of Dense Plasmas Heated With Fast Protons

G. M. Dyer, A. C. Bernstein, B. I. Cho, J. Osterholz, W. Grigsby, A. Dalton, R. Shepherd, Y. Ping, H. Chen, K. Widmann, and T. Ditmire,

Physical Review Letters 101, 015002 (2008)


Study of hot electron transport in foil, wedge, and cone targets irradiated with ultraintense laser pulses

B. I. Cho, J. Osterholz, N. Renard-Le Galloudec, A. C. Bernstein, G. Dyer, and T. Ditmire,

Journal of the Optical Society of America B 25, B50 (2008)


Hot electron generation from intense laser irradiation of microtipped cone and wedge targets

B. I. Cho, G. M. Dyer, S. Kneip, S. Pikuz, D. R. Symes, A. C. Bernstein, Y. Sentoku, N. Renard-Le Galloudec, T. E. Cowan, and T. Ditmire,

Physics of Plasmas 15, 052701 (2008) – Cover of vol 15. issue 5


K-shell spectroscopy of plasmas created by intense laser irradiation of micron-scale pyramid and sphere targets

S. Kneip, B. I. Cho, D. R. Symes, H. A. Sumeruk, G. Dyer, I. V. Churina, A. V. Belolipetski, A. Henig, O. Wehrhan, E. Forster, T. D. Donnelly, and T. Ditmire,

High Energy Density Physics 4, 41 (2008)

[2007]


Development of third harmonic generation as a short pulse probe of shock heated material

W. Grigsby, B. I. Cho, A. C. Bernstein, H. J. Quevedo, J. Colvin, M. C. Downer, T. Ditmire,

Proceeding of the Conference of the APS Topical Group on Shock Compression of Condensed Matter (AIP 2007), 1097