Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Byung-Tai Kim"'
Optimization of pumping conditions with consideration of the thermal effects at ceramic Nd:YAG laser
Publikováno v:
Optik. 181:1085-1090
The authors describe the optimal pumping condition and output considering the media fracture and thermal lens effect at a 2 at.% ceramic Nd:YAG laser. The overall output characteristics according to a spot diameter of pump light, output degradation d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fde8346c8035a1b3330abb961a6597ba
https://doi.org/10.1016/j.ijleo.2018.12.043
https://doi.org/10.1016/j.ijleo.2018.12.043
Autor:
Byung-Tai Kim, Duck-Lae Kim
Publikováno v:
Applied Optics. 60:6170
The thermal shock and fatigue lifetime of a ceramic Nd:YAG laser material were analyzed. A new method is proposed to observe the effects induced by the intense temperature difference between the central portion and the surface of the material using a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bab6e5563e612926d25fb8f2c8871a97
https://doi.org/10.1364/ao.428620
https://doi.org/10.1364/ao.428620
Autor:
Byung-Tai Kim, Jaeheon Shin
Publikováno v:
Current Applied Physics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a95f53210f248b26a8f9c12e9a3970c
https://doi.org/10.1016/j.cap.2019.09.012
https://doi.org/10.1016/j.cap.2019.09.012
Autor:
Duck-Lae Kim, Byung-Tai Kim
Publikováno v:
Optik. 127:9738-9742
Laser output power losses in a ceramic Nd:YAG laser with a doping rate of 2 at.% Nd3+ due to thermal effects were analyzed. The ceramic Nd:YAG laser output power losses due to thermal birefringence effects and thermal lens effects were measured via c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df57eadc77fd248d29d11ac7807cc2ae
https://doi.org/10.1016/j.ijleo.2016.07.068
https://doi.org/10.1016/j.ijleo.2016.07.068
Autor:
Byung-Tai Kim, Duck-Lae Kim
Publikováno v:
OSA Continuum. 3:1633
We estimated the crack formation process by analyzing the crack type and thermal stress of 2 at.% and 4 at.% ceramic Nd:YAGs damaged by pump power in an end-pumped ceramic laser. Lateral cracks, radial cracks, and median cracks occurred sequentially
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ad6e0e46a02243c862b2484b43d42d4
https://doi.org/10.1364/osac.393703
https://doi.org/10.1364/osac.393703
Autor:
Byung-Tai Kim
Publikováno v:
Korean Journal of Optics and Photonics. 26:98-102
The radiative quantum efficiency of a solid-state laser was measured by photoacoustic spectroscopy with a PZT as the detector. The radiative quantum efficiency was about 58.3 % for a laser-diode pumped Nd:S-VAP laser under lasing conditions. The meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d8bb2573515c20317beb5a5ea6b83c7
https://doi.org/10.3807/kjop.2015.26.2.098
https://doi.org/10.3807/kjop.2015.26.2.098
Autor:
Duck-Lae Kim, Byung-Tai Kim
Publikováno v:
Optik - International Journal for Light and Electron Optics. 124:3710-3713
The nonlinear thermal conductivity of the laser material that appears in the ceramic Nd:YAG laser was analyzed. The nonlinear thermal conductivity equation describing the pump power was derived from the measured focal length of the thermal lens on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::470d0cc1fca162d3a2944604a69ddde4
https://doi.org/10.1016/j.ijleo.2012.12.008
https://doi.org/10.1016/j.ijleo.2012.12.008
Autor:
Shouyuan Chen, Zenghu Chang, Qiumei Bian, Shuting Lei, Hongbing Lu, Byung Tai Kim, Nicholas Leventis
Publikováno v:
Journal of Non-Crystalline Solids. 357:186-193
We successfully sliced cylindrical polyurea aerogel samples of 10–15 mm in diameter into 1–3 mm disks using femtosecond laser. The experiments were performed using a Ti:sapphire laser with 800 nm wavelength in ambient air with a pulse duration of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::292790b2ff3f6a899374e81772162f59
https://doi.org/10.1016/j.jnoncrysol.2010.09.037
https://doi.org/10.1016/j.jnoncrysol.2010.09.037
Autor:
Duck-Lae Kim, Byung-Tai Kim
Publikováno v:
Optics Communications. 283:5111-5116
The polarization dependence of a probe beam for use in measuring thermally induced birefringence effects in a laser-diode end-pumped Nd:YAG ceramic laser has been investigated. The variation in intensity of the probe beam was found to be 10.2% for a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1efc273325479cb85ee0b6bab27df017
https://doi.org/10.1016/j.optcom.2010.07.017
https://doi.org/10.1016/j.optcom.2010.07.017
Autor:
Duck-Lae Kim, Byung-Tai Kim
Publikováno v:
Journal of the Korean Physical Society. 57:227-232
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::303b192a4f7f52f6b0b2e5be83488da2
https://doi.org/10.3938/jkps.57.227
https://doi.org/10.3938/jkps.57.227