Zobrazeno 1 - 10
of 39
pro vyhledávání: '"S. T. Bauerschmidt"'
Autor:
Virginia Izquierdo-Bermúdez, Gottfried H. Döhler, Luis Enrique Garcia-Munoz, B. Andres-Garcia, Daniel Segovia-Vargas, Stefan Malzer, Alejandro Rivera-Lavado, Javier Montero-de-Paz, S. T. Bauerschmidt, E. Ugarte-Munoz, Sascha Preu
Publikováno v:
Journal of Infrared, Millimeter, and Terahertz Waves. 34:97-108
Power limitations in CW THz generation imposed by conventional photomixers (“antenna emitters”, AEs) are the major drawbacks on THz generation. From the antenna point of view, two different strategies are proposed to increase the generated power:
Publikováno v:
Optics letters. 41(12)
We report on the generation of a purely vibrational Raman comb, extending from the vacuum ultraviolet (184 nm) to the visible (478 nm), in hydrogen-filled kagomé-style photonic crystal fiber pumped at 266 nm. Stimulated Raman scattering and molecula
Publikováno v:
Conference on Lasers and Electro-Optics.
DUV-pumped hydrogen-filled kagome-PCF displays coherent Raman gain suppression at much higher values of dephasing than for visible pumping. This will impair the performance of gas-based Raman amplifiers and lasers, especially at higher pump powers.
Autor:
Gottfried H. Döhler, Daniel Segovia-Vargas, E. García-Muñoz, S. T. Bauerschmidt, Wang Lijun, Stefan Malzer, B. Andres-Garcia, Sascha Preu
Publikováno v:
IEEE Transactions on Antennas and Propagation. 59:3164-3170
A new geometry for the design of antennas in the Terahertz band is presented. The structure is based on a horn antenna etched in the substrate and fed with a planar printed antenna used for generation of terahertz radiation, designed for the 200 GHz
In 1964 Bloembergen and Shen predicted that Raman gain could be suppressed if the rates of phonon creation and annihilation (by inelastic scattering) exactly balance. This is only possible if the momentum required for each process is identical, i.e.,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::050e01f74b3d69150fbd83e872b672c5
http://arxiv.org/abs/1508.06501
http://arxiv.org/abs/1508.06501
Autor:
Sascha Preu, E. Ugarte-Munoz, David Gonzalez-Ovejero, Mario Mendez-Aller, Alejandro Rivera-Lavado, Gottfried H. Döhler, Javier Montero-de-Paz, Stefan Malzer, Christian Müller, Daniel Segovia-Vargas, S. T. Bauerschmidt, Luis Enrique Garcia-Munoz
Publikováno v:
2014 44th European Microwave Conference.
Arrays of coherently driven photomixers with antenna (antenna emitter arrays, AEAs) have been evaluated as a possibility to overcome the power limitations of individual conventional photomixers with antenna (antenna emitters, AEs) for the generation
Publikováno v:
Advanced Photonics.
Supercontinuum radiation is frequency up-shifted with ~50% quantum efficiency by Raman-driven molecular modulation in a hydrogen-filled hollow-core PCF. Perfect phase-matching is achieved by pressure tuning and the use of higher order modes.
Publikováno v:
2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC.
Localized surface plasmon resonances (LSPRs) are collective oscillations of the electron ensemble in a metallic nanostructure and can be excited by electromagnetic (EM) waves. Their characteristics are determined by the morphology of the nanostructur
Autor:
Daniel Segovia-Vargas, E. Ugarte-Munoz, V. Gonzalez-Posadas, Sascha Preu, Luis Enrique Garcia-Munoz, Javier Montero-de-Paz, Alejandro Rivera-Lavado, Stefan Malzer, S. T. Bauerschmidt, Gottfried H. Döhler
Publikováno v:
IEEE Transactions on teraHertz Science and Technology, ISSN 2156-342X, 2013-09, Vol. 3, No. 5
Archivo Digital UPM
Universidad Politécnica de Madrid
Archivo Digital UPM
Universidad Politécnica de Madrid
Arrays of coherently driven photomixers with antenna (antenna emitter arrays, AEAs) have been evaluated as a possibility to overcome the power limitations of individual conventional photomixers with antenna (?antenna emitters?, AEs) for the generatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8e761082abd9cb029bc6766bb9f527e
https://oa.upm.es/29182/
https://oa.upm.es/29182/
Publikováno v:
Asia Communications and Photonics Conference 2013.
By filling the holes of microstructured optical fibers with particular materials, we implement plasmonic fibers showing hybridized plasmonic excitations with a sophisticated near field polarization, spiralling plasmonic modes and localized plasmonic