Zobrazeno 1 - 10
of 978
pro vyhledávání: '"Wittwer, A. J."'
Autor:
Parriaux, Alexandre, Komagata, Kenichi N., Bertrand, Mathieu, Beck, Mattias, Wittwer, Valentin J., Faist, Jérôme, Südmeyer, Thomas
Optical injection locking of the repetition frequency of a quantum cascade laser frequency comb is demonstrated using an intensity modulated near-infrared light at 1.55 $\mu$m illuminating the front facet of the laser. Compared to the traditional ele
Externí odkaz:
http://arxiv.org/abs/2412.10052
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
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
Autor:
Truong, G. -W., Perner, L. W., Bailey, D. M., Winkler, G., Cataño-Lopez, S. B., Wittwer, V. J., Sudmeyer, T., Nguyen, C., Follman, D., Fleisher, A. J., Heckl, O. H., Cole, G. D.
For trace gas sensing and precision spectroscopy, optical cavities incorporating low-loss mirrors are indispensable for path length and optical intensity enhancement. Optical interference coatings in the visible and near-infrared (NIR) spectral regio
Externí odkaz:
http://arxiv.org/abs/2209.09902
Autor:
Komagata, Kenichi N., Wittwer, Valentin J., Südmeyer, Thomas, Emmenegger, Lukas, Gianella, Michele
Quantum cascade laser (QCL) frequency combs have revolutionized mid-infrared (MIR) spectroscopy by their high brightness and fast temporal resolution, and are a promising technology for fully-integrated and cost-effective sensors. As for other integr
Externí odkaz:
http://arxiv.org/abs/2205.03334
Autor:
Goodrich, Andrew C. 1, ∗, LeClair, Norbert P. 2, Shillova, Nita 3, Morton, William D. 3, Wittwer, Arthur J. 3, Loyet, Kelly M. 2, Hannoush, Rami N. 1, ∗
Publikováno v:
In Journal of Biological Chemistry July 2024 300(7)
Autor:
Moroney, Niall, Del Bino, Leonardo, Zhang, Shuangyou, Woodley, Michael T. M., Hill, Lewis, Wildi, Thibault, Wittwer, Valentin J., Südmeyer, Thomas, Oppo, Gian-Luca, Vanner, Michael. R., Brasch, Victor, Herr, Tobias, Del'Haye, Pascal
Publikováno v:
Nature Communications volume 13, Article number: 398 (2022)
Kerr-effect-induced changes of the polarization state of light are well known in pulsed laser systems. An example is nonlinear polarization rotation, which is critical to the operation of many types of mode-locked lasers. Here, we demonstrate that th
Externí odkaz:
http://arxiv.org/abs/2104.13892
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Autor:
Lahijani, Babak Vosoughi, Descharmes, Nicolas, Barbey, Raphael, Osowiecki, Gael D., Wittwer, Valentin J., Razskazovskaya, Olga, Südmeyer, Thomas, Herzig, Hans Peter
Guiding and confining light at interfaces is crucial for applications involving light-matter interactions such as surface spectroscopy, nonlinear optics, and quantum information technology. While dielectric surface waves offer promising perspectives
Externí odkaz:
http://arxiv.org/abs/1907.00187