Zobrazeno 1 - 10
of 9 331
pro vyhledávání: '"Wittwer, A"'
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:
Khaliq, Ahmar, Wittwer, Felix, Pyrlik, Niklas, Fevola, Giovanni, Patjens, Svenja, Barp, Jackson, Falkenberg, Gero, Hampel, Sven, Stuckelberger, Michael, Garrevoet, Jan, Bruckner, Dennis, Modregger, Peter
4H Silicon Carbide (4H-SiC) combines many attractive properties such as a high carrier mobility, a wide bandgap, and a high thermal conductivity, making it an ideal candidate for high-power electronic devices. However, a primary challenge in utilizin
Externí odkaz:
http://arxiv.org/abs/2409.00200
Autor:
Wittwer, Felix, Modregger, Peter
High-resolution x-ray microscopy requires a high photon flux to measure the signal from weakly scattering samples. This exposes samples to high radiation doses, potentially damaging or destroying them through radiation damage. In this work, we propos
Externí odkaz:
http://arxiv.org/abs/2409.00166
While a few methods for the determination of depth-resolved strain distributions each with inherent limitations are available, tomographic reconstruction has been applied to this problem in only a limited sense. One of the challenges was the potentia
Externí odkaz:
http://arxiv.org/abs/2409.00157
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:
Rinella, Gianluca Aglieri, Alocco, Giacomo, Antonelli, Matias, Baccomi, Roberto, Beole, Stefania Maria, Blidaru, Mihail Bogdan, Buttwill, Bent Benedikt, Buschmann, Eric, Camerini, Paolo, Carnesecchi, Francesca, Chartier, Marielle, Choi, Yongjun, Colocci, Manuel, Contin, Giacomo, Dannheim, Dominik, De Gruttola, Daniele, Viera, Manuel Del Rio, Dubla, Andrea, di Mauro, Antonello, Donner, Maurice Calvin, Eberwein, Gregor Hieronymus, Egger, Jan, Fabbietti, Laura, Feindt, Finn, Gautam, Kunal, Gernhaeuser, Roman, Glover, James Julian, Gonella, Laura, Grodaas, Karl Gran, Gregor, Ingrid-Maria, Hillemanns, Hartmut, Huth, Lennart, Ilg, Armin, Isakov, Artem, Jones, Daniel Matthew, Junique, Antoine, Kaewjai, Jetnipit, Keil, Markus, Kim, Jiyoung, Kluge, Alex, Kobdaj, Chinorat, Kotliarov, Artem, Kittimanapun, Kritsada, Křížek, Filip, Kucharska, Gabriela, Kushpil, Svetlana, La Rocca, Paola, Laojamnongwong, Natthawut, Lautner, Lukas, Lemmon, Roy Crawford, Lemoine, Corentin, Li, Long, Librizzi, Francesco, Liu, Jian, Macchiolo, Anna, Mager, Magnus, Marras, Davide, Martinengo, Paolo, Masciocchi, Silvia, Mattiazzo, Serena, Menzel, Marius Wilm, Mulliri, Alice, Mylne, Mia Rose, Piro, Francesco, Rachevski, Alexandre, Rasà, Marika, Rebane, Karoliina, Reidt, Felix, Ricci, Riccardo, Daza, Sara Ruiz, Saccà, Gaspare, Sanna, Isabella, Sarritzu, Valerio, Schlaadt, Judith, Schledewitz, David, Scioli, Gilda, Senyukov, Serhiy, Simancas, Adriana, Snoeys, Walter, Spannagel, Simon, Šuljić, Miljenko, Sturniolo, Alessandro, Tiltmann, Nicolas, Trifirò, Antonio, Usai, Gianluca, Vanat, Tomas, Van Beelen, Jacob Bastiaan, Varga, Laszlo, Verdoglia, Michele, Vignola, Gianpiero, Villani, Anna, Wennloef, Haakan, Witte, Jonathan, Wittwer, Rebekka Bettina
Analogue test structures were fabricated using the Tower Partners Semiconductor Co. CMOS 65 nm ISC process. The purpose was to characterise and qualify this process and to optimise the sensor for the next generation of Monolithic Active Pixels Sensor
Externí odkaz:
http://arxiv.org/abs/2403.08952
Autor:
Wittwer, David, Tamke, Felix
Many production processes require the cooperation of various resources. Especially when using expensive machines, their utilization plays a decisive role in efficient production. In agricultural production or civil construction processes, e.g., harve
Externí odkaz:
http://arxiv.org/abs/2403.03355
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:
Fleur Delva, Patrick Brochard, Marc Auriacombe, Charlotte Kervran, Linda Cambon, François Alla, Melina Fatseas, Judith Martin-Fernandez, Rachid Salmi, Dominique Dallay, Marion Kret, Loïc Sentilhes, Claire Brandet, Philippe Castéra, Chantal Raherison-Semjen, Nolwenn Stevens, Florence Francis-Oliviero, Sandra Ros, Adrianna Burtin, Rebecca Ratel, Estelle Clet, Fidéline Collin, Séverine Martiren, Sarah Perrin, Carla Monin, Séverine Barandon, Florence Calluaud, Annie Campagne, Louise Delavenne, Macha Cambier, Léo Donzel Godinot, Gaëlle Dreveau, Emmanuelle Gagnou, Anne-Florence Le Faou, Cathy Meier, Emilie Roquand-Wagner, Martine Valadie-Jeannel, Isabelle Vidal, Jérôme Wittwer, Césarine Sambou, Clément Berliet, André Nguyen, Marina Touron, Johanne Bozec, Sarah Tarmoul, Thininhane Ouaker, Manon Crepin, Sabrina Fournier, Gwendoline Mazurie, Clara Corfias, Isabelle Quintana, Younès Yaaraf
Publikováno v:
BMJ Open, Vol 14, Iss 11 (2024)
Introduction In 2021, among French women who smoked when they knew they were pregnant, 59% still smoked at the end of pregnancy. Support for pregnant women to stop smoking must include a structured organisational perspective. The main objective of th
Externí odkaz:
https://doaj.org/article/961094fc76b4495eae2c1f750a8d9870