Zobrazeno 1 - 10
of 305
pro vyhledávání: '"Südmeyer Thomas"'
Autor:
Hug Daniel, Zeyen Manuel, Dax Andreas, Trisorio Alexandre, Carreto Romain, Südmeyer Thomas, Resan Bojan
Publikováno v:
EPJ Web of Conferences, Vol 307, p 04017 (2024)
We simulated the time-dependent temperature profiles inside a blue diode pumped Ti:Sapphire (Ti:Sa) laser amplifier for several different pulsed pump configurations using a discrete element method, including temperature-dependent thermal conductivity
Externí odkaz:
https://doaj.org/article/3acab658bb7c4ec1881c5a16fd40815d
Autor:
Komagata Kenichi N., Parriaux Alexandre, Bertrand Mathieu, Hillbr Johannes, Wittwer Valentin J., Faist Jérôme, Südmeyer Thomas
Publikováno v:
EPJ Web of Conferences, Vol 287, p 07016 (2023)
Using near-infrared light, we tightly-lock a mid-infrared quantum cascade laser frequency comb to another laser, achieving a residual integrated phase noise of 200 mrad. This high coherence is pertinent for highly-sensitive dual-comb spectroscopy and
Externí odkaz:
https://doaj.org/article/f79fe60cb18f42a388d6b521f0be4765
Autor:
Trawi Firas, Drs Jakub, Müller Michael, Hamrouni Marin, Modsching Norbert, Wittwer Valentin J., Südmeyer Thomas
Publikováno v:
EPJ Web of Conferences, Vol 287, p 08003 (2023)
We demonstrate a multimode diode-pumped Yb:CALGO laser oscillator based on bandwidth-optimized cross-polarization pumping targeting sub-30-fs operation. In our first proof of principle experiment we achieved mode-locked operation at 83 MHz repetition
Externí odkaz:
https://doaj.org/article/c001f18d32834049b5d3c6589d7f17a3
Autor:
Drs Jakub, Müller Michael, Trawi Firas, Modsching Norbert, Wittwer Valentin J., Südmeyer Thomas
Publikováno v:
EPJ Web of Conferences, Vol 287, p 08007 (2023)
Thin-disk laser oscillators can nowadays reach few tens of femtosecond pulses at gigawatt-level intracavity powers and megahertz-repetition rates becoming increasingly more powerful sources for intra-oscillator high harmonic generation (HHG). Current
Externí odkaz:
https://doaj.org/article/0d4350b4874849e19d1a9f728c743976
Autor:
Parriaux Alexandre, Komagata Kenichi N., Bertrand Mathieu, Hillbrand Johannes, Wittwer Valentin J., Faist Jérôme, Südmeyer Thomas
Publikováno v:
EPJ Web of Conferences, Vol 287, p 07022 (2023)
We present a dual-comb spectrometer based on quantum cascade lasers operating at 7.7 µm with a stabilization scheme that enables coherent averaging. We show that by illuminating a low cost near-infrared light source of the front facet of the quantum
Externí odkaz:
https://doaj.org/article/095742ebad6d4f37beb8e2b4a48c50f3
Autor:
Pecile, Vito F., Leskowschek, Michael, Modsching, Norbert, Wittwer, Valentin J., Südmeyer, Thomas, Heckl, Oliver H.
Within the domain of optical frequency comb systems operating in the mid-infrared, extensive exploration has been undertaken regarding critical parameters such as stabilization, coherence, or spectral tunability. Despite this, certain essential param
Externí odkaz:
http://arxiv.org/abs/2403.19360
Autor:
Parriaux, Alexandre, Komagata, Kenichi N., Bertrand, Mathieu, Wittwer, Valentin J., Faist, Jérôme, Südmeyer, Thomas
Publikováno v:
Advanced Photonics Research (2024)
Frequency combs are powerful tools for many applications and high performances are achieved by stabilizing these lasers. For operation in the mid-infrared, quantum cascade lasers (QCL) are ideal candidates as they present numerous advantages. However
Externí odkaz:
http://arxiv.org/abs/2311.04820
Publikováno v:
EPJ Web of Conferences, Vol 255, p 03005 (2021)
To enable the production of sophisticated optical interference coating designs, coatings with very low absorption and stray light losses and excellent layer thickness deposition accuracy are required. The selection and optimization of suitable coatin
Externí odkaz:
https://doaj.org/article/7628a529ba534d1b9e2ff13e8c6aad37
Autor:
Labaye François, Wittwer Valentin J., Modsching Norbert, Razskazovskaya Olga, Cormier Eric, Südmeyer Thomas
Publikováno v:
EPJ Web of Conferences, Vol 243, p 10001 (2020)
Externí odkaz:
https://doaj.org/article/12b7c8b1ce7a4936b1f3213ac41d22d3
Autor:
Komagata, Kenichi N., Parriaux, Alexandre, Bertrand, Mathieu, Hillbrand, Johannes, Beck, Mattias, Wittwer, Valentin J., Faist, Jérôme, Südmeyer, Thomas
Publikováno v:
APL Photonics 8, 086110 (2023)
We demonstrate the use of a low power near-infrared laser illuminating the front facet of a quantum cascade laser (QCL) as an optical actuator for the coherent control of a mid-infrared frequency comb. We show that by appropriate current control of t
Externí odkaz:
http://arxiv.org/abs/2305.01508