Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Michael Spanner"'
We present a grid-based implementation of the time-dependent configuration-interaction singles method suitable for computing the strong-field ionization of small gas-phase molecules. After outlining the general equations of motion used in our treatme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5327b6cc12d3c39ad91a3744d9c9336a
http://arxiv.org/abs/2204.09966
http://arxiv.org/abs/2204.09966
Autor:
Thomas Weinacht, Michael Spanner, Andrew J. Howard, Philip H. Bucksbaum, Ruaridh Forbes, Chuan Cheng, C. William McCurdy, Zachary L. Streeter, Robert R. Lucchese
Publikováno v:
Physical Review A, vol 104, iss 2
We investigate the role of nuclear motion and strong-field-induced electronic couplings during the double ionization of deuterated water using momentum-resolved coincidence spectroscopy. By examining the three-body dicationic dissociation channel, D$
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d1043331f5245cdc694978ed3af467f
https://escholarship.org/uc/item/0gs0g50r
https://escholarship.org/uc/item/0gs0g50r
Autor:
Philip H. Bucksbaum, Chuan Cheng, Greg McCracken, Ruaridh Forbes, W. H. Mills, Thomas Weinacht, Andrew J. Howard, Varun Makhija, Michael Spanner
Publikováno v:
Physical Review A. 103
Polyatomic molecules in strong laser fields can undergo substantial nuclear motion within tens of femtoseconds. Ion imaging methods based on dissociation or Coulomb explosion therefore have difficulty faithfully recording the geometry dependence of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62cde456c96b856ad8a6beb8ca7a0b78
https://doi.org/10.1103/physreva.103.043120
https://doi.org/10.1103/physreva.103.043120
Autor:
Jacob Taylor, Sumit Goswami, Valentin Walther, Michael Spanner, Christoph Simon, Khabat Heshami
The recent observation of high-lying Rydberg states of excitons in semiconductors with relatively high binding energy motivates exploring their applications in quantum nonlinear optics and quantum information processing. Here, we study Rydberg excita
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3038dbd771b6541908287e240366b8c
Publikováno v:
Physical Review A. 102
We simulate the pump-probe experiments of lasing in molecular nitrogen ions with particular interest in the effects of rotational wave-packet dynamics. Our computations demonstrate that the coherent preparation of rotational wave packets in ${\mathrm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffc6da75c3769e23910816c4e73a4558
https://doi.org/10.1103/physreva.102.013111
https://doi.org/10.1103/physreva.102.013111
Autor:
Dong Hyuk Ko, Felipe Morales, Misha Ivanov, Pavel Polynkin, David M. Villeneuve, Peng Peng, Michael Spanner, Marianna Lytova, Maria Richter, Chunmei Zhang, Paul B. Corkum, Mathew Britton, Ladan Arissian, Patrick Laferrière
Air lasing in the nitrogen molecular ion is not well understood because the complex physics responsible for gain is interwoven with pulse propagation in an extreme environment. Here we use a short gas jet to limit the interaction length, thereby remo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61eccac86af8f45354f5786e03a7e4e7
https://doi.org/10.1103/physreva.100.013406
https://doi.org/10.1103/physreva.100.013406
Autor:
V. Schuster, J. Beaudoin-Bertrand, Philippe Lassonde, Bruno E. Schmidt, Ojoon Kwon, Michael Spanner, Katherine Légaré, Guangyu Fan, Heide Ibrahim, L. Arias, Antoine Laramée, François Légaré, Andrius Baltuška, Zhensheng Tao, Jens Limpert, Reza Safaei, A. Ehteshami
We demonstrate an efficient approach for enhancing the spectral broadening of long laser pulses and for efficient frequency redshifting by exploiting the intrinsic temporal properties of molecular alignment inside a gas-filled hollow-core fiber (HCF)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a81a343e967ad9d4ca635b3918f1bc4
https://doi.org/10.1364/ol.387037
https://doi.org/10.1364/ol.387037
Autor:
Misha Ivanov, Felipe Morales, Olga Smirnova, Stefan Haessler, Maria Richter, Marianna Lytova, Michael Spanner
Publikováno v:
Optica
Optica, Optical Society of America-OSA Publishing, 2020, 7 (6), pp.586-592. ⟨10.1364/OPTICA.390665⟩
Optica, Optical Society of America-OSA Publishing, 2020, 7 (6), pp.586-592. ⟨10.1364/OPTICA.390665⟩
We show that lasing without inversion arises naturally during propagation of intense femtosecond laser pulses in air. It is triggered by the combination of molecular ionization and molecular alignment, both unavoidable in intense light fields.
H
H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bbadd63aeec38c038f068329485e386
http://arxiv.org/abs/2001.08081
http://arxiv.org/abs/2001.08081
Using machine learning, we explore the utility of various deep neural networks when applied to high harmonic generation scenarios. First, we train the neural networks to predict the time-dependent dipoles and spectra of high harmonic emission from re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e99e34e81c91e3ee96e86955d9c7a31
Autor:
André D. Bandrauk, Michael Spanner, A. Yu. Naumov, Marc J. J. Vrakking, David M. Villeneuve, Matthias Kübel, Paul B. Corkum, André Staudte, Z. Dube, Szczepan Chelkowski
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Nature Communications
Nature Communications
The strong coupling between intense laser fields and valence electrons in molecules causes distortions of the potential energy hypersurfaces which determine the motion of the nuclei and influence possible reaction pathways. The coupling strength vari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91338b96793446c16b5f67ce48977e13
http://arxiv.org/abs/1906.08285
http://arxiv.org/abs/1906.08285