Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Young-Chul Noh"'
Publikováno v:
Applied Surface Science. 479:375-385
This paper demonstrates the formation of high-fill-factor plano-convex cylindrical and dome-type micro-lens arrays on fused silica glass surface using CO2 laser assisted reshaping technique. Cylindrical micro-lens array is fabricated by polishing the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37e92bb19fc7a3a79bb0a285967daadb
https://doi.org/10.1016/j.apsusc.2019.02.083
https://doi.org/10.1016/j.apsusc.2019.02.083
Publikováno v:
14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020).
By including the additional variable, degree of coherence (DOC) in stochastic parallel gradient descent (SPGD) algorithm, we could improve the accuracy of modal decomposition which satisfies both measured near-field and far-field laser beams.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b53a386925354faa4bc537910ea07df7
https://doi.org/10.1364/cleopr.2020.p1_6
https://doi.org/10.1364/cleopr.2020.p1_6
Publikováno v:
Applied Surface Science. 427:396-400
This article demonstrates three-dimensional (3D) hologram printing in polymethyl methacrylate (PMMA) and linthum niobate (LiNbO 3 ) samples by means of single beam femtosecond laser direct writing technique. We have printed double-layer 3D hologram,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0771e4a6d465996c1af515f62a0d23be
https://doi.org/10.1016/j.apsusc.2017.08.033
https://doi.org/10.1016/j.apsusc.2017.08.033
Autor:
Ik-Bu Sohn, Seong-Ku Lee, Young-Chul Noh, Dongyoon Yoo, Hun-Kook Choi, Jae-Hee Sung, Ho Lee, Md. Shamim Ahsan
Publikováno v:
Optical Materials. 69:295-302
This paper demonstrates the design and development of a synchronized femtosecond laser pulse switching system and its applications in nano-patterning of transparent materials. Due to synchronization, we are able to control the location of each irradi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68cd1c052a7e7d58d4d2398e53fb932b
https://doi.org/10.1016/j.optmat.2017.04.055
https://doi.org/10.1016/j.optmat.2017.04.055
Autor:
Jae-Hee Sung, Young-Chul Noh, Seong-Ku Lee, Md. Shamim Ahsan, Ik-Bu Sohn, Hun-Kook Choi, Dongyoon Yoo
Publikováno v:
Journal of the Korean Physical Society. 69:335-343
We report on fabricating high-fill-factor plano-convex spherical and square micro-lens arrays on fused silica glass surface by using a CO2 laser-assisted reshaping technique. Initially, periodic micro-pillars are encoded on glass surfaces by means of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b3f63dd1fd36d5b5cadbb46cca11e1b
https://doi.org/10.3938/jkps.69.335
https://doi.org/10.3938/jkps.69.335
Autor:
Jin Hyeok Kim, Deok Jung, Ik-Bu Sohn, Dongyoon Yoo, Jin-Tae Kim, Md. Shamim Ahsan, Young-Chul Noh, Hun-Kook Choi, Ho-Min Kang
Publikováno v:
Optics & Laser Technology. 75:63-70
This paper demonstrates the laser assisted formation of plano-convex cylindrical and flat-top curved micro-lens array on fused silica glass surface. Initially, femtosecond laser pulses are irradiated on the sample glass to fabricate periodic linear m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ff406201341af2349131cf04225a6d1
https://doi.org/10.1016/j.optlastec.2015.05.022
https://doi.org/10.1016/j.optlastec.2015.05.022
Autor:
Dongyoon Yoo, Ik-Bu Sohn, Md. Shamim Ahsan, Yong Tak Lee, Jin-Tae Kim, Young-Chul Noh, Hun-Kook Choi, Ho-Min Kang
Publikováno v:
Optik. 126:4285-4291
Finding ways to pattern indium-tin-oxide (ITO) thin films attached with flexible polymer plays an important role in manufacturing a large variety of photonic/optical devices including flexible display panels. This paper demonstrates femtosecond laser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0447bace0cb353f8e4e66c4ea62990f3
https://doi.org/10.1016/j.ijleo.2015.08.142
https://doi.org/10.1016/j.ijleo.2015.08.142
Autor:
Jin-Tae Kim, Dongyoon Yoo, Md. Shamim Ahsan, Seong-Ku Lee, Hun-Kook Choi, Young-Chul Noh, Jae-Hee Sung, T. M. Jeong, Ik-Bu Sohn
Publikováno v:
Journal of the Optical Society of Korea. 19:327-333
This paper reports the fabrication of various micro-lensed single-mode optical fibers through the use of an enhanced peak power $CO_2$ laser beam. The end faces of the optical fibers are exposed to the $CO_2$ laser beam to form convex, concave, and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82ca4a46df4d7b1aca1eb7f34e586a57
https://doi.org/10.3807/josk.2015.19.4.327
https://doi.org/10.3807/josk.2015.19.4.327
Publikováno v:
Journal of the Korean Physical Society. 66:55-60
We have fabricated double-layer diffraction gratings with a zigzag shape inside fused silica glass by using a femtosecond laser, the intention of which is to overcome the hindrance of shortening grating’s period. Our primary focus is to utilize dou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1433f812807092c48d4d3012f5fc6646
https://doi.org/10.3938/jkps.66.55
https://doi.org/10.3938/jkps.66.55
Publikováno v:
SCIENTIFIC REPORTS(7)
Scientific Reports
Scientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
Scientific Reports
Scientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
Sensitive and fast optical imaging is needed for scientific instruments, machine vision, and biomedical diagnostics. Many of the fundamental challenges are addressed with time stretch imaging, which has been used for ultrafast continuous imaging for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1d3efee5d716484abf09c388053f04d
http://open-repository.kisti.re.kr/cube/handle/open_repository/481511.do
http://open-repository.kisti.re.kr/cube/handle/open_repository/481511.do
