Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Sinan Gündoğdu"'
Publikováno v:
Laser & Photonics Reviews. :2200706
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92913e147d0beb3316e33e259e839f1e
https://doi.org/10.1002/lpor.202200706
https://doi.org/10.1002/lpor.202200706
Autor:
Aleksandra Maluckov, Ekaterina Smolina, Daniel Leykam, Sinan Gündoğdu, Dimitris G. Angelakis, Daria A. Smirnova
Publikováno v:
Physical Review B
We study how the nonlinear propagation dynamics of bulk states may be used to distinguish topological phases of slowly-driven Floquet lattices. First, we show how instabilities of nonlinear Bloch waves may be used to populate Floquet bands and measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4374447abdf9b537d15ee4ecd084e2a8
http://vinar.vin.bg.ac.rs/bitstream/id/26424/2111.10229.pdf
http://vinar.vin.bg.ac.rs/bitstream/id/26424/2111.10229.pdf
Publikováno v:
IEEE Photonics Technology Letters
Several factors limit the reliable output power of a semiconductor laser under CW operation, such as carrier leakage, thermal effects, and catastrophic optical mirror damage (COMD). Ever higher operating powers may be possible if the COMD can be avoi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25f74c3081370accd33bca2aaeceaffb
https://doi.org/10.1109/lpt.2018.2884465
https://doi.org/10.1109/lpt.2018.2884465
Publikováno v:
Superlattices and Microstructures
Multilayers of germanium nanocrystals (NCs) embedded in thin films of silicon nitride matrix separated with SiO2 barriers have been fabricated using plasma enhanced chemical vapor deposition (PECVD). SiGeN/SiO2 alternating bilayers have been grown on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbebf3427c2f60f6b47725c204e9e6fe
https://doi.org/10.1016/j.spmi.2017.02.037
https://doi.org/10.1016/j.spmi.2017.02.037
Publikováno v:
Proceedings High-Power Diode Laser Technology XVII, 2019
Date of Conference: 2-7 February 2019 Conference name: SPIE LASE, 2019 The self-heating of semiconductor lasers contributes directly to facet heating and consequently to the critical temperature for catastrophic optical mirror damage (COMD) but the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fd9d5b0719399dbbc5116afdeb785da
https://hdl.handle.net/11693/52941
https://hdl.handle.net/11693/52941
Publikováno v:
IEEE Photonics Technology Letters
Optical power output is the most sought-after quantity in laser engineering. This is also true for quantum cascade lasers operating especially at long wavelengths. Buried heterostructure cascade lasers with epitaxial regrowth have typically shown the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2171f8d71b8afc87121931673ef4ec5
https://hdl.handle.net/11693/50202
https://hdl.handle.net/11693/50202
Publikováno v:
Proceedings of the SPIE Vol. 10682, Semiconductor Lasers and Laser Dynamics VIII
Date of Conference: 22-26 April 2018 Conference Name: SPIE Photonics Europe, 2018 The main optical output power limitation in high power laser diodes is the catastrophic optical mirror damage (COMD) initiated by facet heating due to optical absorptio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f99c41d9c93a6ea6b2175a82499758e4
https://doi.org/10.1117/12.2311642
https://doi.org/10.1117/12.2311642
Autor:
Mete Gunoven, Sinan Gündoğdu, Hadi Sedaghat Pisheh, Abdullah Demir, Carlo Sirtori, Atilla Aydinli
Publikováno v:
Proceedings of SPIE-The International Society for Optical Engineering
Conference name: Proceedings of SPIE, Semiconductor Lasers and Laser Dynamics VIII Date of Conference: 23–26 April 2018 Quantum cascade lasers are coherent light sources that rely on intrersubband transition in periodic semiconductor quantum well s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::038f308785d92580b015de3e96c89436
https://hdl.handle.net/11693/50313
https://hdl.handle.net/11693/50313
Publikováno v:
Superlattices and Microstructures
Models that use phonon confinement fail to provide consistent results for nanocrystal sizes in differing dielectric matrices due to varying stress experienced by nanocrystals in different dielectric environments. In cases where direct measurement of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f0a7ff2534bca544b479f635132ab90
http://hdl.handle.net/11452/31540
http://hdl.handle.net/11452/31540
Autor:
Hadi Sedaghat Pisheh, Abdullah Demir, Mete Gunoven, Atilla Aydinli, Sinan Gündoğdu, Carlo Sirtori
Publikováno v:
Optics Express
Temperature rise during operation is a central concern of semiconductor lasers and especially difficult to measure during a pulsed operation. We present a technique for in situ time-resolved temperature measurement of quantum cascade lasers operating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74bc5f10c3eab7f15fc905755633b329
https://doi.org/10.1364/oe.26.006572
https://doi.org/10.1364/oe.26.006572