Zobrazeno 1 - 10
of 18
pro vyhledávání: '"D. J. Hoffmann"'
Autor:
Amelle Zaïr, T. Siegel, C. Hutchison, Dane R. Austin, D. J. Hoffmann, Felicity McGrath, Pascal Salières, N. Lin, Jonathan P. Marangos, Sarah Houver
Publikováno v:
Journal of Modern Optics
We investigate quantum trajectory control in high-order harmonic generation using an additional orthogonally polarised second harmonic field. By controlling the relative phase between this field and the fundamental, we are able to suppress and enhanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78ad27b8cd080ce0e83dc0272b910512
https://doi.org/10.1080/09500340.2014.901431
https://doi.org/10.1080/09500340.2014.901431
Autor:
Jonathan P. Marangos, B. B. Augstein, C. Figueira de Morisson Faria, D. J. Hoffmann, L. E. Chipperfield, T. Das
We investigate high-order harmonic spectra from aligned diatomic molecules in intense driving fields whose components have orthogonal polarizations. We focus on how the driving-field ellipticity influences structural interference patterns in a macros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1388edb6d77518b1a1efcc8b8c41c16c
Publikováno v:
Scopus-Elsevier
We examine trajectory selection and resulting yield modulation in high harmonic generation using a multicolor field composed of an 800nm fundamental and its perpendicularly polarized second harmonic.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d3c049beb2a745093c935674ef3126e
https://doi.org/10.1364/hilas.2012.jt2a.61
https://doi.org/10.1364/hilas.2012.jt2a.61
Autor:
D. J. Hoffmann, Amelle Zaïr, Jonathan P. Marangos, T. Siegel, F. Frank, John W. G. Tisch, Leonardo Brugnera
We demonstrate control of short and long quantum trajectories in high harmonic emission through the use of an orthogonally polarized two-color field. By controlling the relative phase ϕ between the two fields we show via classical and quantum calcul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe7ce9220388834f9ccf2e99c8191a71
http://hdl.handle.net/10044/1/18903
http://hdl.handle.net/10044/1/18903
Autor:
I. Procino, R. Torres, Jonathan P. Marangos, Amelle Zaïr, Jonathan G. Underwood, T. Siegel, D. J. Hoffmann, Emma Springate, Leonardo Brugnera, Edmund Turcu, L. E. Chipperfield
Publikováno v:
2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC).
We report observations and analysis of high harmonic generation driven by a superposition of fields at 1290 nm and 780 nm. These fields are not commensurate in frequency, as in previous experiments such as Ref. [1], and the superposition leads to an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e9990c1ad325fbb6f02ffd865a979f6
https://doi.org/10.1109/cleoe.2011.5943041
https://doi.org/10.1109/cleoe.2011.5943041
Autor:
R. Torres, F. Frank, Leonardo Brugnera, C. A. Froud, John W. G. Tisch, Jonathan P. Marangos, T. Siegel, D. J. Hoffmann, Edmond Turcu, Emma Springate, Jonathan G. Underwood
Publikováno v:
Optics Letters. 35:3994
We demonstrate enhancement by 1 order of magnitude of the high-order harmonics generated in argon by combining a fundamental field at 1300 nm (10(14) W cm(-2)) and its orthogonally polarized second harmonic at 650 nm (2 × 10(13) W cm(-2)) and by con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37658bca15a0b5850aa8c1661ed82e86
https://doi.org/10.1364/ol.35.003994
https://doi.org/10.1364/ol.35.003994
Autor:
Leonardo Brugnera, Jonathan G. Underwood, D. J. Hoffmann, I. C. E. Turcu, Jonathan P. Marangos, I. Procino, Amelle Zaïr, T. Siegel, L. E. Chipperfield, R. Torres, Emma Springate
Publikováno v:
Optics Express. 18:6853
We report observations and analysis of high harmonic generation driven by a superposition of fields at 1290 nm and 780 nm. These fields are not commensurate in frequency and the superposition leads to an increase in the yield of the mid-plateau harmo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f3a0b394de1a99b60834edc91241898
https://doi.org/10.1364/oe.18.006853
https://doi.org/10.1364/oe.18.006853
Publikováno v:
New Journal of Physics. 11:113045
Control over the polarization of an attosecond pulse train (APT) is demonstrated theoretically using orthogonally polarized two-color fields. The carrier envelope phase of the two pulses is used as a control parameter to generate both an APT with lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e9c75958eff16f38f684fc777f67e81
https://doi.org/10.1088/1367-2630/11/11/113045
https://doi.org/10.1088/1367-2630/11/11/113045
Autor:
Camilo Ruiz, L. E. Chipperfield, Luis Plaja, Jonathan P. Marangos, Jose Antonio Pérez-Hernández, D. J. Hoffmann, Luis Roso, Amelle Zaïr
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 42:134004
We demonstrate a novel technique for an extension of the cut-off frequency in high-harmonic generation using a shaped field, consisting of two delayed pulses, identical in all parameters except a carrier envelope phase shift of π. We obtain high har
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63b90bd3cc76c0c6a1a9e4dcf813de12
https://doi.org/10.1088/0953-4075/42/13/134004
https://doi.org/10.1088/0953-4075/42/13/134004
Publikováno v:
Journal of Colloid and Interface Science. 71:21-29
PVC particle fractions prepared by air classification were used to study the effect of particle size and particle size distribution on viscosity, viscosity-shear rate, and viscosity time behavior. The results show that a broadening of the distributio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a9bd7fabb432bd2da40db79d526d957
https://doi.org/10.1016/0021-9797(79)90217-0
https://doi.org/10.1016/0021-9797(79)90217-0