Zobrazeno 1 - 10
of 182
pro vyhledávání: '"Nicolaie Pavel"'
Autor:
Gabriela Croitoru, Florin Jipa, Madalin Greculeasa, Alin Broasca, Flavius Voicu, Lucian Gheorghe, Nicolaie Pavel
Publikováno v:
Materials, Vol 17, Iss 8, p 1758 (2024)
Buried depressed-cladding waveguides were fabricated in 0.7-at.% Nd:Ca3Li0.275Nb1.775Ga2.95O12 (Nd:CLNGG) and 7.28-at.% Yb:CLNGG disordered laser crystals grown by Czochralski method. Circular waveguides with 100 μm diameters were inscribed in both
Externí odkaz:
https://doaj.org/article/a35e05ff524840f88821d06dd61fedbc
Publikováno v:
Results in Physics, Vol 42, Iss , Pp 105958- (2022)
In this work we report on the characteristics of laser ignition of CH4-air mixtures, using multi-point (up to four points) ignition with single-pulse beams as well as with trains of two pulses. A compact Nd:YAG/Cr4+:YAG laser with four beams, each be
Externí odkaz:
https://doaj.org/article/9d2ef43a8e9a468faaf927f6522d2fbb
Publikováno v:
IEEE Photonics Journal, Vol 8, Iss 1, Pp 1-9 (2016)
Circular buried depressed-cladding waveguides have been inscribed in Nd:YAG ceramic media by direct writing with a femtosecond-laser beam. A classical step-by-step translation of the medium method, as well as a newly developed helical-moving techniqu
Externí odkaz:
https://doaj.org/article/77a700b5131947d78748ece9eba7dc4c
Autor:
Nicolaie Pavel, Gabriela Croitoru, Oana-Valeria Grigore, Nicolae-Tiberius Vasile, Traian Dascalu, Adrian Birtas, Nicolae Boicea, Mihai Dinca, Florin Draghici, Radu Chiriac
Publikováno v:
Advances in 3OM: Opto-Mechatronics, Opto-Mechanics, and Optical Metrology.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e56d9584c06c633d585b9790a664a9c
https://doi.org/10.1117/12.2620045
https://doi.org/10.1117/12.2620045
Publikováno v:
Materials, Vol 11, Iss 9, p 1689 (2018)
We report on laser performances obtained in Q-switch mode operation from buried depressed-cladding waveguides of circular shape (100 μm diameter) that were inscribed in Nd:YAG and Nd:YVO4 media by direct writing with a femtosecond laser beam. The Q-
Externí odkaz:
https://doaj.org/article/b3c41dc59ba149d899118159249fb3d2
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
An optical vortex (OV) has a number of intrinsic properties, such as spiral phase structure, hollow-core intensity distribution or orbital angular momentum, which leads to many interesting applications in the field of frontier research, like cold ato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e44b2aa3c528de71b598a082cfb47d55
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542502
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542502
Autor:
Mihai P. Dinca, Niculae Boicea, Radu Chiriac, Florin Draghici, Gabriela Croitoru, Nicolaie Pavel, Adrian Birtas
Publikováno v:
Energy Procedia. 157:1022-1028
A typical method frequently used for the experimental investigation of engines operation at light load, low speed and different air-fuel ratios by spark timing adjustment was applied to understand in what measure the characteristics of the ignition s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c4520fddcbc9118ae7c03e19c16af92
https://doi.org/10.1016/j.egypro.2018.11.269
https://doi.org/10.1016/j.egypro.2018.11.269
Autor:
Alin Broasca, Madalin Greculeasa, Flavius Voicu, George Stanciu, Stefania Hau, Cristina Gheorghe, Gabriela Croitoru, Nicolaie Pavel, Lucian Gheorghe
Publikováno v:
Laser Congress 2021 (ASSL,LAC).
Incongruent melting pure and Yb-doped La x Y y Sc4-x-y(BO3)4 - LYSB crystals were successfully grown by the Czochralski method. Their structural, linear and nonlinear optical properties are investigated. The laser emission characteristics of the Yb-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b526f16b3421a6d05b998b819ca5fe5
https://doi.org/10.1364/assl.2021.ath1a.6
https://doi.org/10.1364/assl.2021.ath1a.6
Autor:
Flavius Voicu, Cristina Gheorghe, Gabriela Croitoru, S. Hau, Lucian Gheorghe, Madalin Greculeasa, Alin Broasca, Nicolaie Pavel
Publikováno v:
EPJ Web of Conferences, Vol 243, p 06004 (2020)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca25206199e92cd1d9582f270edf57e6
https://www.epj-conferences.org/articles/epjconf/pdf/2020/19/epjconf_europhoton2020_06004.pdf
https://www.epj-conferences.org/articles/epjconf/pdf/2020/19/epjconf_europhoton2020_06004.pdf
Autor:
Lucian Gheorghe, Flavius Voicu, Alin Broasca, Madalin Greculeasa, Monica Enculescu, Cristina Gheorghe, Catalina-Alice Brandus, S. Hau, Nicolaie Pavel, George A. Stanciu
Publikováno v:
Optical Materials. 123:111832
The performances of 3.5 at.% Nd:LGSB bifunctional laser and nonlinear optical (NLO) crystal were investigated. A high-quality single crystal with incongruent melting, having dimensions of about 12 mm in diameter and 35 mm in length, was grown along t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f580d2411660a8b0f14e778d9af4beb3
https://doi.org/10.1016/j.optmat.2021.111832
https://doi.org/10.1016/j.optmat.2021.111832