Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Taiki Kawamori"'
Publikováno v:
APL Photonics, Vol 7, Iss 8, Pp 086101-086101-9 (2022)
We report a study of high-order multiphoton absorption, nonlinear refraction, and their anisotropy in four notable mid-infrared χ(2) crystals: GaP, ZnSe, GaSe, and ZGP using femtosecond pulses at 2.35 μm with peak intensity in excess of 200 GW/cm2.
Externí odkaz:
https://doaj.org/article/637df7015ddd458982635fd52da2ad2e
Publikováno v:
Conference on Lasers and Electro-Optics.
We report multiphoton absorption (MPA) and pulse-length-dependent nonlinear absorption in four mid-infrared crystals. While MPA order varied following crystals’ bandgaps, generated free carriers by MPA contributed considerably to the total absorpti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b31e3bd128efbd55e986c57e8d989a2
https://doi.org/10.1364/cleo_at.2022.jw3a.57
https://doi.org/10.1364/cleo_at.2022.jw3a.57
Publikováno v:
Laser-Induced Damage in Optical Materials 2021.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68291e30950f98e28984b3d8913a7ba7
https://doi.org/10.1117/12.2601661
https://doi.org/10.1117/12.2601661
Autor:
Konstantin L. Vodopyanov, Qitian Ru, Peter G. Schunemann, Taiki Kawamori, Sergey Vasilyev, Sergey B. Mirov
Publikováno v:
Optics letters. 46(4)
We report a subharmonic (frequency-divide-by-2) optical parametric oscillator (OPO) with a continuous wavelength span of 3 to 12 µm ( − 37 d B level) that covers most of the molecular rovibrational “signature” region. The key to obtaining such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e09880b6b797bc5b73d31d1c3d7dd94
https://pubmed.ncbi.nlm.nih.gov/33577495
https://pubmed.ncbi.nlm.nih.gov/33577495
Publikováno v:
Conference on Lasers and Electro-Optics.
Using Z-scan and femtosecond 2.35-μm pulses, we study high-order nonlinear effects in monocrystals. We find the multiphoton absorption order N varies from N=6 (GaP, ZnSe) to N=4 (GaSe, ZGP), in accordance with the crystals’ bandgaps.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cca32b2633c0bedd77efde1ba1fd8ea
https://doi.org/10.1364/cleo_si.2021.stu4c.1
https://doi.org/10.1364/cleo_si.2021.stu4c.1
Autor:
Sergey Vasilyev, Peter G. Schunemann, Sergey B. Mirov, Qitian Ru, Taiki Kawamori, Konstantin L. Vodopyanov
Publikováno v:
Conference on Lasers and Electro-Optics.
We used a dispersionless-cavity subharmonic OPO pumped by femtosecond 2.35-pm pulses to demonstrate a coherent output spanning 3-12pm with up to 245-mW power. We also compare the performance of the OP-GaP vs OP-GaAs crystal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74806ba8cbca04d3174036495f72727b
https://doi.org/10.1364/cleo_si.2020.sf3r.3
https://doi.org/10.1364/cleo_si.2020.sf3r.3
Publikováno v:
Physical Review Applied. 11
With their natural randomness, polycrystalline materials as gain elements have opened an avenue for the development of ultrafast laser sources. The authors' model, based on the rigorous orientation of crystalline domains, lays the foundation for ultr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aeec225f8af23710d6d240b8b522807
https://doi.org/10.1103/physrevapplied.11.054015
https://doi.org/10.1103/physrevapplied.11.054015
Publikováno v:
Conference on Lasers and Electro-Optics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d17f5a823a6ecd7177367afc94eb2f8
https://doi.org/10.1364/cleo_qels.2019.ff3d.5
https://doi.org/10.1364/cleo_qels.2019.ff3d.5
Publikováno v:
Conference on Lasers and Electro-Optics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c68675308e0c150d9f95993f7f0ad86
https://doi.org/10.1364/cleo_si.2019.sth3j.6
https://doi.org/10.1364/cleo_si.2019.sth3j.6