Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Nikola Opačak"'
Autor:
Dmitry Kazakov, Theodore P. Letsou, Maximilian Beiser, Yiyang Zhi, Nikola Opačak, Marco Piccardo, Benedikt Schwarz, Federico Capasso
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract High-quality optical ring resonators can confine light in a small volume and store it for millions of roundtrips. They have enabled the dramatic size reduction from laboratory scale to chip level of optical filters, modulators, frequency con
Externí odkaz:
https://doaj.org/article/ff1b3cb438104a93a63963bdb23830b8
Autor:
Dmitry Kazakov, Nikola Opačak, Florian Pilat, Yongrui Wang, Alexey Belyanin, Benedikt Schwarz, Federico Capasso
Publikováno v:
APL Photonics, Vol 9, Iss 2, Pp 026104-026104-6 (2024)
Cluster synchronization is a general phenomenon in a network of non-locally coupled oscillators. Here, we show that cluster synchronization occurs in semiconductor lasers, where the beat notes between the pairs of adjacent longitudinal modes of the l
Externí odkaz:
https://doaj.org/article/6437a75bb24a4f02a8479a698f317093
Autor:
Johannes Hillbrand, Nikola Opačak, Marco Piccardo, Harald Schneider, Gottfried Strasser, Federico Capasso, Benedikt Schwarz
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
Producing pulses in the mid-IR often requires bulky sources and has been inaccessible with compact and versatile quantum cascade lasers (QCLs). Here, the authors demonstrate actively mode-locked, mid-IR QCL operation at room temperature.
Externí odkaz:
https://doaj.org/article/751ce928e3614108aaccd516d0206a72
Autor:
Florian Pilat, Nikola Opačak, Dmitry Kazakov, Sandro Dal Cin, Federico Capasso, Gottfried Strasser, Benedikt Schwarz
Publikováno v:
Semiconductor Lasers and Laser Dynamics X.
Autor:
Nikola Opačak, Florian Pilat, Dmitry Kazakov, Sandro Dal Cin, Georg Ramer, Bernhard Lendl, Federico Capasso, Gottfried Strasser, Benedikt Schwarz
Publikováno v:
Conference on Lasers and Electro-Optics.
The linewidth enhancement factor (LEF) is an important parameter of semiconductor lasers as it describes many of their unique properties. Recently, it is gaining broad attention due to its key role in frequency comb operation. However, previously dev
Publikováno v:
Optics Letters
Quantum cascade lasers (QCLs) facilitate compact optical frequency comb sources that operate in the mid-infrared and terahertz spectral regions, where many molecules have their fundamental absorption lines. Enhancing the optical bandwidth of these ch
Autor:
Marco Piccardo, Nikola Opačak, Gottfried Strasser, Federico Capasso, Benedikt Schwarz, Harald Schneider, Johannes Hillbrand
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
The discovery of short optical pulses has triggered various breakthroughs in fundamental science and technology. While mode-locked lasers emitting visible and near-infrared light have reached a high level of maturity, methods for the generation of pu
Autor:
Aaron Maxwell Andrews, Benedikt Limbacher, Dominik Theiner, Maximilian Beiser, Benedikt Schwarz, Michael Jaidl, M. Giparakis, Nikola Opačak, Martin A. Kainz, Juraj Darmo, Karl Unterrainer, Sebastian Schönhuber, Gottfried Strasser
Publikováno v:
Scopus-Elsevier
In recent years, optical frequency comb sources have been realized in the mid-infrared and terahertz region by using quantum cascade lasers (QCLs) [1] , [2] . These electrically driven, on-chip sources provide high output power and a compact design.
Publikováno v:
Novel In-Plane Semiconductor Lasers XX.
A phenomenological linewidth enhancement factor (LEF) was recently used to explain a variety of laser dynamics, from free-running optical frequency combs (OFCs) to solitonic-structures in quantum cascade lasers (QCLs). In this work, we provide a phys
Autor:
Nikola Opačak, Marco Piccardo, Alexey Belyanin, Johannes Hillbrand, Lorenzo Columbo, Maximilian Beiser, Yongrui Wang, Shantanu Jha, Federico Capasso, Benedikt Schwarz, Dmitry Kazakov, Michele Tamagnone
Publikováno v:
Novel In-Plane Semiconductor Lasers XX.
It is a well-established truth that spatial hole burning (SHB) in a standing-wave cavity is an essential single-mode instability mechanism for multimode operation of quantum cascade lasers (QCLs). We discovered recently that another instability mecha