Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Jaeryung Yoo"'
Publikováno v:
Journal of Crystal Growth. 273:368-374
A detailed study to achieve optically efficient GaInNAs QWs by low-pressure metal-organic chemical vapor deposition (LP-MOCVD) is reported. It was found that the insertion of GaNAs/InGaAs layers to GaInNAs QW/GaAs barrier is very effective to control
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d36b3b33a7c12422d19f7eaf1e2af61
https://doi.org/10.1016/j.jcrysgro.2004.09.041
https://doi.org/10.1016/j.jcrysgro.2004.09.041
Publikováno v:
Journal of Crystal Growth. 272:748-752
A comprehensive study to achieve optically efficient GaInNAs quantum wells (QWs) grown by low-pressure metalorganic vapor phase epitaxy (MOVPE) has been accomplished. In order to extend emission wavelength over 1.3 μm effectively, GaInNAs QW structu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7ea048263d7f47b7e74c5bcdead0e51
https://doi.org/10.1016/j.jcrysgro.2004.08.133
https://doi.org/10.1016/j.jcrysgro.2004.08.133
Autor:
Taek Kim, Ki-Sung Kim, Soohaeng Cho, Jun-Youn Kim, Gi-bum Kim, Jaeryung Yoo, Sang-Moon Lee, Yongjo Park
Publikováno v:
IEEE Photonics Technology Letters. 19:1925-1927
We report an improved optical pumping efficiency in a vertical-external-cavity surface-emitting laser (VECSEL) by employing the double-band mirror (DBM), which acts as a pump beam reflector as well as a cavity mirror. The optical pumping efficiency o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c594ec95394f1195628d4531aca1a8a
https://doi.org/10.1109/lpt.2007.908771
https://doi.org/10.1109/lpt.2007.908771
Autor:
Gi-bum Kim, Sang-Moon Lee, Ki-Sung Kim, Soohaeng Cho, Jaeryung Yoo, Taek Kim, Yongjo Park, Jun-Youn Kim
Publikováno v:
IEEE Photonics Technology Letters. 19:1655-1657
We report a high-power fundamental transverse mode operation of an optically pumped 920-nm vertical-external- cavity surface-emitting laser. The effects of the gain related structural parameters on the laser performance are investigated. Based on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee7509a048b962a5ea5c975b273c2a33
https://doi.org/10.1109/lpt.2007.905076
https://doi.org/10.1109/lpt.2007.905076
Autor:
Jaeryung Yoo, Jun-Youn Kim, Ki-Sung Kim, Soohaeng Cho, Gi Bum Kim, Yongjo Park, Sang-Moon Lee, Taek Kim
Publikováno v:
IEEE Photonics Technology Letters. 19:1325-1327
We propose a novel lens-less optical end-pumping scheme and report on the development of a highly efficient and compact green vertical-external-cavity surface-emitting laser (VECSEL). A constant-wave pump-power-limited maximum green output power of 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfa98b8d6716e3afe5c54a373dacbd40
https://doi.org/10.1109/lpt.2007.902914
https://doi.org/10.1109/lpt.2007.902914
Autor:
Ki-Sung Kim, Soohaeng Cho, Jun-Youn Kim, Jaeryung Yoo, Taek Kim, Sang-Moon Lee, Seong-Jin Lim, Gi Bum Kim, Junho Lee, Yongjo Park
Publikováno v:
Japanese Journal of Applied Physics. 46:5157-5159
We characterize the lasing properties of two configurations of end-pumped vertical-external-cavity surface-emitting lasers: one with an intracavity diamond heat spreader, the other with an extracavity heat spreader. A pump-power-limited CW output pow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4deed8b9bcf04a43cb5a4aae7a4b14f
https://doi.org/10.1143/jjap.46.5157
https://doi.org/10.1143/jjap.46.5157
Autor:
Seong-Jin Lim, Jaeryung Yoo, Ki-Sung Kim, Taek Kim, Gi Bum Kim, Junho Lee, Soohaeng Cho, Yongjo Park, Sang-Moon Lee, Jun-Youn Kim, Jong-In Shim
Publikováno v:
IEEE Photonics Technology Letters. 18:2496-2498
We investigate the effect of relative wavelength difference between material gain and resonance peaks on lasing performance in vertical-external-cavity surface-emitting lasers (VECSELs). We propose a measurement method of the wavelength-dependent mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cc3763972a25597b63aab4c5c82418b
https://doi.org/10.1109/lpt.2006.887217
https://doi.org/10.1109/lpt.2006.887217
Publikováno v:
IEEE Photonics Technology Letters. 16:1994-1996
We present a promising method to achieve a high-performance GaInNAs quantum-well (QW) laser emitting 1.36 /spl mu/m by metal-organic vapor phase epitaxy. It was found that the insertion of GaNAs-InGaAs layers to GaInNAs QW-GaAs barrier is very effect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e2db313b9d012596ce1f541a1beee16
https://doi.org/10.1109/lpt.2004.831953
https://doi.org/10.1109/lpt.2004.831953
Autor:
Duck-Hyung Lee, Taehun Lee, Yun-Ki Lee, Byung-Jun Park, Wook Lee, Jung-Chak Ahn, Yong Hee Lee, Chang-Rok Moon, Kyung-Ho Lee, Jin-hak Kim, Jaeryung Yoo, Moo-Sup Lim, Yong Jei Lee, Tae-Chan Kim, Hyunwoo Cho, Kyoung-Sik Moon, Junghoon Jung, Bum-Suk Kim, Sang-il Jung, Heemin Park, Yi-tae Kim, June-Taeg Lee
Publikováno v:
2008 IEEE International Electron Devices Meeting.
As pixel size of image sensors shrinks down rapidly, we are reaching technical barrier to get the required low light performance. In this paper, recent advanced technologies such as backside illumination, new color filter array, low F-number with ext
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ca4878c75cd64d747aa9651de8a2b77
https://doi.org/10.1109/iedm.2008.4796671
https://doi.org/10.1109/iedm.2008.4796671
Autor:
Taek Kim, Yongjo Park, Ki-Sung Kim, Soohaeng Cho, Sang-Moon Lee, Junho Lee, Gi Bum Kim, Jun-Youn Kim, Jaeryung Yoo
Publikováno v:
2007 Conference on Lasers and Electro-Optics (CLEO).
We report on the development and demonstration of the watt-level operation of a compact green vertical external cavity surface emitting laser optically end-pumped by a single chip laser diode without any focusing lenses.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a01417ba85975df23d843feb0864de5a
https://doi.org/10.1109/cleo.2007.4453612
https://doi.org/10.1109/cleo.2007.4453612