Zobrazeno 1 - 10
of 1 786
pro vyhledávání: '"Graf Thomas"'
Publikováno v:
EPJ Web of Conferences, Vol 307, p 04028 (2024)
We present the first thin-disk laser operation of alexandrite with an average power over 15 W in continuous-wave multimode operation at a wavelength of 750 nm. Additionally, single- mode operation with up to 2.6 W was achieved.
Externí odkaz:
https://doaj.org/article/1d943f487add42daa8746fe559f61edf
Publikováno v:
EPJ Web of Conferences, Vol 307, p 02036 (2024)
We present in this contribution a single large-mode area inhibited-coupling hollow-core fiber for guiding laser beam at a wavelength of 1030 nm and its second harmonic at 515 nm with confinement losses below 30 dB/km.
Externí odkaz:
https://doaj.org/article/53f64f31b3b04337a8ed591d658dae03
Autor:
Leyzner Maxim, Gierss Peter, Ćutuk Ana, Currle Kai, Rühle Rebecca, Jetter Michael, Michler Peter, Graf Thomas, Ahmed Marwan Abdou
Publikováno v:
EPJ Web of Conferences, Vol 307, p 02035 (2024)
We propose a grating waveguide structure with embedded quantum wells that shows potential for improving the cooling scheme for red-emitting VECSELs. The reflectivity map, the internal field distribution and the transmission spectra of our recently fa
Externí odkaz:
https://doaj.org/article/aba7049608704239a2e5666cee698f80
Autor:
Boubekraoui Ayoub, Tomilov Sergei, Redkin Mykyta, Bashir Danish, Mourkioti Georgia, Mackenzie Jacob, Saraceno Clara J., Graf Thomas, Ahmed Marwan Abdou
Publikováno v:
EPJ Web of Conferences, Vol 307, p 02024 (2024)
We present resonant waveguide-grating (RWG) tailored for lasers operating at the 2-µm wavelength range. Utilizing the RWG as a cavity mirror, generation of tunable narrow-bandwidth and linearly-polarized radiation from a Ho:YAG thin-disk laser was d
Externí odkaz:
https://doaj.org/article/9a8221ab78574948983b9945c980a561
Autor:
Abdou Ahmed Marwan, Beirow Frieder, Loescher André, Dietrich Tom, Bashir Danish, Didychenko Denys, Savchenko Anton, Pruss Christof, Fetisova Marina, Li Fangfang, Karvinen Petri, Kuittinen Markku, Graf Thomas
Publikováno v:
Nanophotonics, Vol 11, Iss 4, Pp 835-846 (2021)
We present the intracavity generation of beams with radial polarization at an average output power of 750 W and an optical efficiency of 43% from a continuous wave thin-disk laser. Circular grating waveguide output couplers (GWOC) were used to select
Externí odkaz:
https://doaj.org/article/474792c43a5d40b0a27c798bb188db39
This survey analyzes intermediate fusion methods in collaborative perception for autonomous driving, categorized by real-world challenges. We examine various methods, detailing their features and the evaluation metrics they employ. The focus is on ad
Externí odkaz:
http://arxiv.org/abs/2404.16139
Ultrafast lasers, with pulse durations below a few picoseconds, are of significant interest to the industry, offering a cutting-edge approach to enhancing manufacturing processes and enabling the fabrication of intricate components with unparalleled
Externí odkaz:
http://arxiv.org/abs/2404.02044
Autor:
Zeyen, Manuel, Affolter, Lukas, Ahmed, Marwan Abdou, Graf, Thomas, Kara, Oguzhan, Kirch, Klaus, Marszalek, Miroslaw, Nez, François, Ouf, Ahmed, Pohl, Randolf, Rajamohanan, Siddharth, Yzombard, Pauline, Schuhmann, Karsten, Antognini, Aldo
We report on an Yb:YAG thin-disk multipass amplifier delivering 50 ns long pulses at a central wavelength of 1030 nm with an energy of 330 mJ at a repetition rate of 100 Hz. The beam quality factor at the maximum energy was measured to be $\text{M}^2
Externí odkaz:
http://arxiv.org/abs/2309.13726
Autor:
Zeyen, Manuel, Affolter, Lukas, Ahmed, Marwan Abdou, Graf, Thomas, Kara, Oguzhan, Kirch, Klaus, Langenbach, Adrian, Marszalek, Miroslaw, Nez, François, Ouf, Ahmed, Pohl, Randolf, Rajamohanan, Siddharth, Yzombard, Pauline, Antognini, Aldo, Schuhmann, Karsten
We demonstrate an injection-seeded thin-disk Yb:YAG laser at 1030 nm, stabilized by the Pound-Drever-Hall (PDH) method. We modified the PDH scheme to obtain an error signal free from Trojan locking points, which allowed robust re-locking of the laser
Externí odkaz:
http://arxiv.org/abs/2306.07131
Autor:
The CREMA Collaboration, Schuhmann, Karsten, Fernandes, Luis M. P., Nez, François, Ahmed, Marwan Abdou, Amaro, Fernando D., Amaro, Pedro, Biraben, François, Chen, Tzu-Ling, Covita, Daniel S., Dax, Andreas J., Diepold, Marc, Franke, Beatrice, Galtier, Sandrine, Gouvea, Andrea L., Götzfried, Johannes, Graf, Thomas, Hänsch, Theodor W., Hildebrandt, Malte, Indelicato, Paul, Julien, Lucile, Kirch, Klaus, Knecht, Andreas, Kottmann, Franz, Krauth, Julian J., Liu, Yi-Wei, Machado, Jorge, Monteiro, Cristina M. B., Mulhauser, Françoise, Naar, Boris, Nebel, Tobias, Santos, Joaquim M. F. dos, Santos, José Paulo, Szabo, Csilla I., Taqqu, David, Veloso, João F. C. A., Voss, Andreas, Weichelt, Birgit, Antognini, Aldo, Pohl, Randolf
Hydrogen-like light muonic ions, in which one negative muon replaces all the electrons, are extremely sensitive probes of nuclear structure, because the large muon mass increases tremendously the wave function overlap with the nucleus. Using pulsed l
Externí odkaz:
http://arxiv.org/abs/2305.11679