Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Christer Z. Bisgaard"'
Publikováno v:
Lab Chip. 14:4629-4637
The field of cytometry has grown in scope and importance ever since the early 20th century with leaps in technology introducing the Coulter counter and the flow cytometer. Cytometry methods have brought about a revolution for the medical and biotechn
Publikováno v:
IEEE Transactions on Terahertz Science and Technology
We investigate the electromagnetic design of whispering gallery mode (WGM) terahertz (THz) resonators. Terahertz radiation is generated by difference-frequency mixing of two electrically pumped high-order near-infrared laser WGM's at room temperature
Publikováno v:
Nature Physics. 7:612-615
Chemical reactions are manifestations of the dynamics of molecular valence electrons and their couplings to atomic motions. Emerging methods in attosecond science can probe purely electronic dynamics in atomic and molecular systems. By contrast, time
Autor:
Peter M. Weber, Sanghamitra Deb, Nerijus Rusteika, Martin Rosenberg, Michael P. Minitti, Christer Z. Bisgaard, Theis I. Sølling
Publikováno v:
The Journal of Physical Chemistry A. 114:7021-7025
The photoelectron spectrum shows that multiphoton ionization of amyl nitrite, C(5)H(11)ONO, using ultrafast laser pulses deposits up to 3.7 eV of energy into internal degrees of freedom. As a result, the molecules fragment to produce various daughter
Autor:
Christer Z. Bisgaard, Anthony M. D. Lee, Oliver Geßner, Carl C. Hayden, Owen J. Clarkin, Albert Stolow, Guorong Wu
Publikováno v:
Science. 323:1464-1468
Random orientation of molecules within a sample leads to blurred observations of chemical reactions studied from the laboratory perspective. Methods developed for the dynamic imaging of molecular structures and processes struggle with this, as measur
Autor:
Vinod Kumarappan, Christer Z. Bisgaard, Lotte Holmegaard, Henrik Stapelfeldt, Simon S. Viftrup
Publikováno v:
Kumarappan, V, Viftrup, S, Holmegaard, L, Bisgaard, C & Stapelfeldt, H 2007, ' Aligning molecules with long or short laser pulses ', Physica Scripta, vol. 76, pp. C63-C68 .
We briefly review recent experimental developments of laser induced alignment of molecules with pulses that are either long (adiabatic) or short (nonadiabatic) compared to the molecular rotational periods. The main focus is on one-dimensional (1D) al
Autor:
Frank Jensen, Johannes Schneider, Oleg I. Tolstikhin, Hans Jakob Wörner, Toru Morishita, Christer Z. Bisgaard, Denitsa Baykusheva, Lars Bojer Madsen, Peter M. Kraus, Alisa Rupenyan
Publikováno v:
Nature Communications, 6
Kraus, P M, Tolstikhin, O I, Baykusheva, D, Rupenyan, A, Schneider, J, Bisgaard, C Z, Morishita, T, Jensen, F, Madsen, L B & Wörner, H J 2015, ' Observation of laser-induced electronic structure in oriented polyatomic molecules ', Nature Communications, vol. 6, 7039, pp. 1-8 . https://doi.org/10.1038/ncomms8039
Nature communications
Nature Communications
Kraus, P M, Tolstikhin, O I, Baykusheva, D, Rupenyan, A, Schneider, J, Bisgaard, C Z, Morishita, T, Jensen, F, Madsen, L B & Wörner, H J 2015, ' Observation of laser-induced electronic structure in oriented polyatomic molecules ', Nature Communications, vol. 6, 7039, pp. 1-8 . https://doi.org/10.1038/ncomms8039
Nature communications
Nature Communications
All attosecond time-resolved measurements have so far relied on the use of intense near-infrared laser pulses. In particular, attosecond streaking, laser-induced electron diffraction and high-harmonic generation all make use of non-perturbative light
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afbacc2e6b5dd5e0fc175ea302e6d2d0
https://hdl.handle.net/20.500.11850/101135
https://hdl.handle.net/20.500.11850/101135
Publikováno v:
Bisgaard, C & Madsen, L B 2004, ' Tunneling ionization of atoms ', American Journal of Physics, vol. 72, pp. 249 .
We discuss the theory for the ionization of atoms by tunneling due to a strong external static electric field or an intense low frequency laser field.
Experiments in the gas phase usually involve averaging observables over a random molecular axis alignment distribution. This deleterious averaging limits insights gained by probes of molecular dynamics, but can be overcome by prealigning molecular ax
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d29102188d99c60a1de3c1afbcd0a35
https://doi.org/10.1063/1.4812787
https://doi.org/10.1063/1.4812787
Autor:
Bretislav Friedrich, Gerard Meijer, Frank Filsinger, Paw Simesen, Henrik Stapelfeldt, Christer Z. Bisgaard, Jens H. Nielsen, Jochen Küpper
Publikováno v:
Physical Chemistry Chemical Physics
Nielsen, J H, Simesen, P, Bisgaard, C Z, Stapelfeldt, H, Filsinger, F, Friedrich, B, Meijer, G & Küpper, J 2011, ' Stark-selected beam of ground-state OCS molecules characterized by revivals of impulsive alignment ', Physical Chemistry Chemical Physics, vol. 13, pp. 18971-18975 . https://doi.org/10.1039/C1CP21143A
Nielsen, J H, Simesen, P, Bisgaard, C Z, Stapelfeldt, H, Filsinger, F, Friedrich, B, Meijer, G & Küpper, J 2011, ' Stark-selected beam of ground-state OCS molecules characterized by revivals of impulsive alignment ', Physical Chemistry Chemical Physics, vol. 13, pp. 18971-18975 . https://doi.org/10.1039/C1CP21143A
We make use of an inhomogeneous electrostatic dipole field to impart a quantum-state-dependent deflection to a pulsed beam of OCS molecules, and show that those molecules residing in the absolute ground state, $X ^1\Sigma^+$, $\ket{00^00}$, J=0, can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fc835b4dea9c3b8780efee31c8c329b
http://arxiv.org/abs/1105.2413
http://arxiv.org/abs/1105.2413