Zobrazeno 1 - 10
of 131
pro vyhledávání: '"G, Sall"'
Autor:
S. Park, J. Yang, C. Kim, Byunghak Lee, Bosu Jeong, E. G. Sall, Jun Wan Kim, V.E. Yashin, Guang-Hoon Kim
Publikováno v:
Quantum Electronics. 51:873-877
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c95df49f79f8775e1f322943a1a48646
https://doi.org/10.1070/qel17622
https://doi.org/10.1070/qel17622
Autor:
Byunghak Lee, Duchang Heo, Jun Wan Kim, E. G. Sall, J. Yang, Vladimir E. Yashin, Guang-Hoon Kim, J.-A. Choi, Bosu Jeong, J. Jang, J.-H. Kim
Publikováno v:
Quantum Electronics. 50:201-204
We present images of microholes drilled in diamond using a homemade femtosecond Yb : KGW laser. We use a femtosecond laser source emitting pulses with a duration of 230 fs at a wavelength of 1030 nm, the focusing spot size amounting to 8.9 μm. The e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0de5cffdd14a9914a1c8d0393ee8db07
https://doi.org/10.1070/qel17097
https://doi.org/10.1070/qel17097
Autor:
Vladimir E. Yashin, Byunghak Lee, J. Yang, Duchang Heo, S. A. Chizhov, Guang-Hoon Kim, Bosu Jeong, Jun Wan Kim, E. G. Sall
Publikováno v:
Quantum Electronics. 49:1168-1171
A three-stage laser amplification system based on thin Yb : YAG rods with diode laser pumping is developed and fabricated. In this system, the average power of a continuous train of femtosecond pulses from a Yb : KGW master oscillator with a pulse re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3efd602014d03f4d191f002f4b6e289a
https://doi.org/10.1070/qel17108
https://doi.org/10.1070/qel17108
Publikováno v:
Journal de Pédiatrie et de Puériculture. 31:277-281
Resume Le but de notre travail etait d’evaluer le taux de couverture de la supplementation en vitamine A pour les enfants âges de 6 a 59 mois au Senegal apres deux passages d’intensification en 2011 dans 12 regions du Senegal a l’exception de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::155099e91ea81c78d7d8a32d6ee98a8f
https://doi.org/10.1016/j.jpp.2018.08.001
https://doi.org/10.1016/j.jpp.2018.08.001
Autor:
Byunghak Lee, Jun Wan Kim, E. G. Sall, Duchang Heo, Jung Hoon Kim, Youngtae Kim, Jung-An Choi, Jinah Jang, J. Yang, Bosu Jeong, Guang-Hoon Kim
A Micro holes in a diamond are presented by using a homemade femtosecond (fs) Yb:KGW laser. An fs laser source was used emitting pulse duration of 230 fs at 1030 nm wavelength, whereas the spot size amounted to 8.9 μm. Parameters like pulse energy,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41a4fab106396addf6d9a6c1d554a013
https://doi.org/10.20944/preprints201903.0269.v1
https://doi.org/10.20944/preprints201903.0269.v1
Autor:
Vladimir E. Yashin, Byunghak Lee, Guang-Hoon Kim, Chur Kim, Seol Won Park, Duchang Heo, Bosu Jeong, Jun Wan Kim, J. Yang, E. G. Sall
Publikováno v:
Laser Congress 2019 (ASSL, LAC, LS&C).
We have studied experimentally a high power booster of Yb:YAG single-crystal fiber with regenerative amplifier based on dual-slab Yb:KGW crystals. The booster provided the output power of 45 W with the gain of 3. It allowed the laser system to mainta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b977618f9f87b94efa7b6e834feecf6d
https://doi.org/10.1364/assl.2019.jth3a.22
https://doi.org/10.1364/assl.2019.jth3a.22
Autor:
Bosu Jeong, Chur Kim, S. A. Chizhov, Byunghak Lee, E. G. Sall, V.E. Yashin, Jun Wan Kim, Guang-Hoon Kim, Seolwon Park, Duchang Heo, J. Yang
Publikováno v:
Laser Physics. 31:065001
We present a hybrid chirped pulse amplification femtosecond laser amplification system with which to realize a Yb:KGW regenerative amplifier (RGA) and a Yb:YAG thin-rod amplifier. The combination of RGA based on dual Yb:KGW crystals and a thin-rod Yb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4c4a37d4076eff1e43ae1a27ec498e9
https://doi.org/10.1088/1555-6611/abf565
https://doi.org/10.1088/1555-6611/abf565
Autor:
S. A. Chizhov, Vladimir E. Yashin, Olga Vadimova, Byunghak Lee, E. G. Sall, Guang-Hoon Kim, Ivan B. Mukhin, Ivan Kuznetsov, O. V. Palashov
Publikováno v:
2018 International Conference Laser Optics (ICLO).
The numerical model for simulation of broadband amplification in a thin-rod and a tapered rod active elements was developed. The simulation results verified by the experimental data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c11714637b4ed743364f751e7d16811
https://doi.org/10.1109/lo.2018.8435567
https://doi.org/10.1109/lo.2018.8435567
Autor:
Seol Won Park, Ivan Kuznetsov, E. G. Sall, Olga Vadimova, Guang-Hoon Kim, Ivan Mukhin, Bosu Jeong, S. A. Chizhov, Chur Kim, Jun Wan Kim, Oleg Palashov, Byunghak Lee, Duchang Heo
Publikováno v:
2018 International Conference Laser Optics (ICLO).
Hybrid Yb:Y 2 O 3 ceramic thin-rod femtosecond amplifier is reported. By 4-pass amplification scheme, output power of 1.4 W with gain of 14 is achieved from 100 mW, 1033 nm, 30 MHz fiber seeder. The extracted gain spectrum shows gain bandwidth of abo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ee00f8525f90e9f85d74b4693d35b6b
https://doi.org/10.1109/lo.2018.8435512
https://doi.org/10.1109/lo.2018.8435512
Autor:
E. G. Sall, Byunghak Lee, Guang-Hoon Kim, J. Yang, Vladimir E. Yashin, Uk Kang, S. A. Chizhov
Publikováno v:
Quantum Electronics. 45:211-215
Diode-pump absorption is experimentally studied in a high-power Yb:KGd(WO4)2 (Yb:KGW) laser in the presence and absence of lasing. The maximum absorption efficiency in the cw regime exceeds 77% which is by a factor of 1.4 greater than the maximum abs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecd35a9fee5448081b2c39e25f4abc83
https://doi.org/10.1070/qe2015v045n03abeh015684
https://doi.org/10.1070/qe2015v045n03abeh015684