Výsledky vyhledávání - "Affolter, Lukas"

Report

Radiant fluence from ray tracing in optical multipass systems

Autor: Marszałek, Mirosław, Affolter, Lukas, Kara, Oguzhan, Kirch, Klaus, Schuhmann, Karsten, Zeyen, Manuel, Antognini, Aldo

In applications of optical multipass cells in photochemical reactors and laser excitation of weak transitions, estimation of the radiation dose in a volume of interest allows to assess the performance and optimize the design of the cell. We adopt rad

Externí odkaz: http://arxiv.org/abs/2402.07223

Zobrazit plný text záznamu

Report

A compact 20-pass thin-disk multipass amplifier stable against thermal lensing effects and delivering 330 mJ pulses with $\bf{M^2 < 1.17}$

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

Zobrazit plný text záznamu

Report

Planetary evolution with atmospheric photoevaporation II: Fitting the slope of the radius valley by combining boil-off and XUV-driven escape

Autor: Affolter, Lukas, Mordasini, Christoph, Oza, Apurva V., Kubyshkina, Daria, Fossati, Luca

Publikováno v: A&A 676, A119 (2023)

The Kepler satellite has revealed a gap between sub-Neptunes and super-Earths that atmospheric escape models had predicted as an evaporation valley. We seek to contrast results from a simple XUV-driven energy-limited (ELIM) escape model against those

Externí odkaz: http://arxiv.org/abs/2307.02566

Zobrazit plný text záznamu

Report

Injection-seeded high-power Yb:YAG thin-disk laser stabilized by the Pound-Drever-Hall method

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

Zobrazit plný text záznamu

Report

Pound-Drever-Hall locking scheme free from Trojan operating points

The Pound-Drever-Hall (PDH) technique is a popular method for stabilizing the frequency of a laser to a stable optical resonator or, vice versa, the length of a resonator to the frequency of a stable laser. We propose a refinement of the technique yi

Externí odkaz: http://arxiv.org/abs/2210.05501

Zobrazit plný text záznamu