Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Alfredo Bismuto"'
Autor:
Romain Terazzi, Michel Rochat, Thomas Südmeyer, Stéphane Blaser, Stéphane Schilt, Alfredo Bismuto, Lionel Tombez, Camille Tardy, Richard Maulini
We present an experimental study of noise in mid-infrared quantum cascade lasers (QCLs) of different designs. By quantifying the high degree of correlation occurring between fluctuations of the optical frequency and voltage between the QCL terminals,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3178e94013f53d443fb5a7d2e55bf992
http://doc.rero.ch/record/331623/files/340_2015_Article_6021.pdf
http://doc.rero.ch/record/331623/files/340_2015_Article_6021.pdf
Autor:
Yong Liang, Jérôme Faist, Martin J. Süess, Mattias Beck, Pierre-Baptiste Vigneron, V. Liverini, Johanna Wolf, Alfredo Bismuto, Wondwosen Metaferia, Emilio Gini, M. Balaji, Sebastian Lourdudoss, Romain Peretti, Christopher Bonzon
Publikováno v:
Laser & Photonics Reviews. 10:843-848
High power single mode quantum cascade lasers with a narrow far field are important for several applications including surgery or military countermeasure. Existing technologies suffer from drawbacks such as operation temperature and scalability. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::270d6ded8e594fd5af1313d2b5dfd8fd
https://doi.org/10.1002/lpor.201600047
https://doi.org/10.1002/lpor.201600047
Autor:
Stéphane Blaser, Richard Maulini, Alfredo Bismuto, Stéphane Schilt, Romain Terazzi, Michel Rochat, Camille Tardy, Lionel Tombez, Thomas Südmeyer
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 21:68-73
We report on the evaluation of the frequency stability of a distributed feedback quantum cascade laser (QCL) at 8 µm that was continuously monitored over a 2-month period using a spectroscopic setup. The QCL was operated in continuous wave mode at r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a16fcb258f6fa645bee12d318a07c84
https://doi.org/10.1109/jstqe.2015.2413962
https://doi.org/10.1109/jstqe.2015.2413962
Autor:
Angelo Sampaolo, Alfredo Bismuto, Frank K. Tittel, James Jiang, Pietro Patimisco, Marshall Scott, Yves Bidaux, Vincenzo Spagnolo
Publikováno v:
SPIE Proceedings.
We report on a novel quantum cascade laser (QCL) capable of operating in pure amplitude or wavelength modulation configuration thereby allowing the acquisition of background-free gas absorption-line profiles using quartz-enhanced photoacoustic spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5952483cedfedc68ed7f7fda4dd171e2
https://doi.org/10.1117/12.2252352
https://doi.org/10.1117/12.2252352
Autor:
Alfredo Bismuto, Emilio Gini, Jérôme Faist, Alice Bernard, Margaux Renaudat St‐Jean, H. C. Liu, Mattias Beck, Carlo Sirtori, A. Calvar, Maria I. Amanti
Publikováno v:
Laser & Photonics Reviews. 8:443-449
Compact laser sources operating in mid infrared spectral region with stable emission are important for appli- cations in spectroscopy and wireless communication. Quantum cascade lasers (QCL) are unique semiconductor sources cover- ing mid infrared fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::345737b6ee74e6faa35dee9d73660611
https://doi.org/10.1002/lpor.201300189
https://doi.org/10.1002/lpor.201300189
Autor:
Yves Bidaux, Jérôme Faist, Stéphane Blaser, Angelo Sampaolo, Pietro Patimisco, Vincenzo Spagnolo, Frank K. Tittel, Gregory Strubi, Tobias Gresch, Alfredo Bismuto, Antoine Muller
Publikováno v:
Optics express. 24(23)
We present a single mode multi-section quantum cascade laser source composed of three different sections: master oscillator, gain and phase section. Non-uniform pumping of the QCL's gain reveals that the various laser sections are strongly coupled. S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::201ddf074d85c20ec9f4b556243030f4
https://pubmed.ncbi.nlm.nih.gov/27857379
https://pubmed.ncbi.nlm.nih.gov/27857379
Autor:
Stéphane Blaser, Antoine Muller, Ilia Sergachev, Alfredo Bismuto, Tobias Gresch, Richard Maulini
Publikováno v:
Optics express. 24(17)
We report gain-guided broad area quantum cascade lasers at 4.55 μm. The devices were processed in a buried heterostructure configuration with a current injector section much narrower than the active region. They demonstrate 23.5 W peak power at a te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93c58622a900c0f11f619960080a51a3
https://pubmed.ncbi.nlm.nih.gov/27557186
https://pubmed.ncbi.nlm.nih.gov/27557186
Autor:
Camille Tardy, Alfredo Bismuto, Stéphane Blaser, Kutan Gürel, Tobias Gresch, Stéphane Schilt, Yves Bidaux, Thomas Südmeyer
Publikováno v:
Photonics, 3 (3)
Photonics; Volume 3; Issue 3; Pages: 47
Photonics; Volume 3; Issue 3; Pages: 47
We present a detailed experimental investigation of the use of a novel actuator for frequency tuning and modulation in a quantum cascade laser (QCL) based on a resistive integrated heater (IH) placed close to the active region. This new actuator is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63e119199e3173af716455d79cf3649d
http://doc.rero.ch/record/261478/files/G_rel_K.-Frequency_tuning-20160810.pdf
http://doc.rero.ch/record/261478/files/G_rel_K.-Frequency_tuning-20160810.pdf
Autor:
Tobias Gresch, Stéphane Blaser, Antoine Muller, Jérôme Faist, Romain Terazzi, Yves Bidaux, Alfredo Bismuto, Michel Rochat, Christopher Bonzon
Publikováno v:
Optics express. 24(10)
We present a single mode quantum cascade laser with nearly 1 W optical power. A buried distributed feedback reflector is used on the back section for wavelength selection. The laser is 6 mm long, 3.5 μm wide, mounted episide-up and the laser facets
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f23598eabe0321f7734cc63618d2ca63
https://pubmed.ncbi.nlm.nih.gov/27409890
https://pubmed.ncbi.nlm.nih.gov/27409890
Autor:
Sebastian Lourdudoss, Johanna Wolf, M. Balaji, Wondwosen Metaferia, Christopher Bonzon, M. Beck, Romain Peretti, V. Liverini, Alfredo Bismuto, Emilio Gini, Jérôme Faist, Martin J. Süess, Yong Liang, Pierre-Baptiste Vigneron
Publikováno v:
Imaging and Applied Optics 2016.
We demonstrate a buried-heterostructure photonic-crystal quantum cascade laser operating at room temperature. The large-area coherent lasing enabled an output peak power of 0.88 W at 263 K with single-mode behavior and narrow far field pattern.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::156202ae7fc6827f6c8cd9696f082298
https://doi.org/10.1364/lacsea.2016.lth3e.2
https://doi.org/10.1364/lacsea.2016.lth3e.2