Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Xavier Marcadet"'
Autor:
W. Schrenk, Michel Calligaro, J. Darmo, C. Deutsch, Gottfried Strasser, Alexander Benz, Xavier Marcadet, J. Kroll, Harvey E. Beere, David A. Ritchie, W. Parz, Aaron Maxwell Andrews, Karl Unterrainer, Thomas Müller, M. Martl, Damien P. Kelly, Gernot Fasching, Carlo Sirtori, S. S. Dhillon
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 14:307-314
In this review, we report on the study of terahertz (THz) intersubband (ISB) transitions and on the optical devices based on them. We use time-resolved THz spectroscopy to examine ISB optical transitions in semiconductor quantum wells and quantum cas
Autor:
Nadezhda Kukharchyk, Shovon Pal, Ulrich Kunze, Sergej Markmann, Negar Hekmat, Arne Ludwig, Xavier Marcadet, Claudia Bock, Jérôme Tignon, Hanond Nong, Sven Scholz, Sukhdeep Dhillon, Nathan Jukam, Andreas D. Wieck
Publikováno v:
2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
Double-pulse injection seeding is used to modify the spectral emission of a terahertz quantum cascade laser (THz QCL). Two broad-band THz pulses delayed in time imprint a modulation on the single THz pulse spectrum. The resulting seed enables modific
Autor:
R. Rungsawang, J. Maysonnave, Xavier Marcadet, Carlo Sirtori, Julien Madéo, Stefano Barbieri, C. Filloux, Jérôme Tignon, Nathan Jukam, P. Cavalié, S. S. Dhillon, Kenneth Maussang
Publikováno v:
ResearcherID
International Conference on Infrared and Millimeter Waves/THz Electronics
International Conference on Infrared and Millimeter Waves/THz Electronics, 2011, Houston, United States
International Conference on Infrared and Millimeter Waves/THz Electronics
International Conference on Infrared and Millimeter Waves/THz Electronics, 2011, Houston, United States
Ultrafast gain switching of THz quantum cascade lasers is demonstrated and applied to amplify sub-ps THz pulses as well as to initiate THz laser emission with a controlled phase. Impact on THz time domain spectroscopy and on future development for mo
Autor:
Carlo Sirtori, Julien Madéo, P. Filloux, Jérôme Tignon, Stefano Barbieri, Nathan Jukam, Dimitri Oustinov, Sukhdeep Dhillon, R. Rungsawang, S. Sawallich, Xavier Marcadet
Publikováno v:
35th International Conference on Infrared, Millimeter, and Terahertz Waves.
Integrated THz pulse generation and amplification in THz QCLs is demonstrated. Intracavity narrowband THz pulses are generated at 2.1THz by exciting the facet of a THz quantum cascade laser with a resonant interband-intersubband transition and detect
Autor:
Stefano Barbieri, Jérôme Tignon, Julien Madéo, R. Rungsawang, S. Sawallich, Dimitri Oustinov, Sukhdeep Dhillon, Pascal Filloux, Nathan Jukam, Carlo Sirtori, Xavier Marcadet
Publikováno v:
GDR-E THz 2010
GDR-E THz 2010, 2010, Paris, France
BASE-Bielefeld Academic Search Engine
Photonics West 2011
Photonics West 2011, 2011, San Francisco, United States
Proc. SPIE 7945 : Quantum Sensing and Nanophotonic Devices VIII
Photonics West 2011, 2011, San Francisco, United States. pp.79450B
International Conference on Physics of Semiconductor
International Conference on Physics of Semiconductor, Jul 2010, Seoul, South Korea
GDR-E THz 2010, 2010, Paris, France
BASE-Bielefeld Academic Search Engine
Photonics West 2011
Photonics West 2011, 2011, San Francisco, United States
Proc. SPIE 7945 : Quantum Sensing and Nanophotonic Devices VIII
Photonics West 2011, 2011, San Francisco, United States. pp.79450B
International Conference on Physics of Semiconductor
International Conference on Physics of Semiconductor, Jul 2010, Seoul, South Korea
Integrated terahertz (THz) pulse generation and amplification in a THz quantum cascade laser (QCL) is demonstrated. Intra-cavity THz pulses are generated by exciting the facet of the quantum cascade laser with an ultrafast Ti:Sapphire laser (~100fs)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::391407fc6333d50b6ad845f904b6ce0b
https://hal.archives-ouvertes.fr/hal-00659838
https://hal.archives-ouvertes.fr/hal-00659838
Autor:
Stefano Barbieri, P. Filloux, S. Hameau, Jérôme Tignon, Carlo Sirtori, Sukhdeep Dhillon, Zhen-Yu Zhao, Xavier Marcadet, Angela Vasanelli, Dimitri Oustinov, Nathan Jukam
Publikováno v:
2008 33rd International Conference on Infrared, Millimeter and Terahertz Waves.
Terahertz time-domain spectroscopy is used to determine gain related parameters of terahertz quantum-cascade lasers. Due to the techniquespsila insensitivity to the QCL emission, spectral gain narrowing is observed above laser threshold. By correlati
Autor:
Stefano Barbieri, Zhen-Yu Zhao, S. Hameau, P. Filloux, Sukhdeep Dhillon, Dimitri Oustinov, Xavier Marcadet, Jérôme Tignon, Carlo Sirtori, Nathan Jukam
Publikováno v:
Conference on Lasers and Electro-Optics 2008
Conference on Lasers and Electro-Optics 2008, 2008, San José, United States
Conference on Lasers and Electro-Optics
Conference on Lasers and Electro-Optics, 2008, San-José, United States
Scopus-Elsevier
Conference on Lasers and Electro-Optics 2008, 2008, San José, United States
Conference on Lasers and Electro-Optics
Conference on Lasers and Electro-Optics, 2008, San-José, United States
Scopus-Elsevier
Terahertz time-domain spectroscopy is used to determine the gain of terahertz quantum-cascade lasers. Gain clamping and spectral gain narrowing are observed above threshold, giving insight into subband alignment as a function of the applied voltage.
Autor:
S. Hameau, Jérôme Tignon, Nathan Jukam, Zhen-Yu Zhao, Angela Vasanelli, Dimitri Oustinov, Pascal Filloux, Sukhdeep Dhillon, Xavier Marcadet, Carlo Sirtori, Stefano Barbieri
Publikováno v:
AIP Conf. Proc. 1199 : Physics of semiconductors
ICPS 29
ICPS 29, 2008, Rio, Brazil. pp.473
Applied Physics Letters
Applied Physics Letters, American Institute of Physics, 2008, 93, pp.101115
Applied Physics Letters, 2008, 93, pp.101115
ICPS 29
ICPS 29, 2008, Rio, Brazil. pp.473
Applied Physics Letters
Applied Physics Letters, American Institute of Physics, 2008, 93, pp.101115
Applied Physics Letters, 2008, 93, pp.101115
International audience; The spectral gain of bound-to-continuum terahertz quantum cascade lasers (QCLs) is measured as a function of current density using terahertz time-domain spectroscopy. During lasing action the full width at half maximum (FWHM)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9281d3f32c5d2811012c076538338664
https://hal.archives-ouvertes.fr/hal-00659798
https://hal.archives-ouvertes.fr/hal-00659798
Autor:
Carlo Sirtori, Juraj Darmo, Karl Unterrainer, J. Kroll, Sukhdeep Dhillon, Michel Calligaro, Xavier Marcadet
Publikováno v:
Scopus-Elsevier
We present loss characteristics of a terahertz quantum cascade laser based on the bound-to-continuum design. By coupling broadband THz pulses into the laser’s waveguide structure the spectrum of thermally activated absorption features is measured.
Autor:
S. S. Dhillon, J. Kroll, Karl Unterrainer, Xavier Marcadet, J. Darmo, Carlo Sirtori, Michel Calligaro
Publikováno v:
AIP Conference Proceedings.
We show results on the interaction between broadband terahertz radiation and a quantum cascade laser operating at 2.87 THz. By coupling terahertz pulses into the laser’s waveguide the losses and gain in the frequency range 0.5 – 3.5 THz are deter