Výsledky vyhledávání - "Irina Znakovskaya"

Electron localization following attosecond molecular photoionization

Publikováno v: Nature; 465(7299), pp 3-763 (2010)
Nature

For the past several decades, we have been able to directly probe the motion of atoms that is associated with chemical transformations and which occurs on the femtosecond (10(-15)-s) timescale. However, studying the inner workings of atoms and molecu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f27b4076524aacb69bc68d84648578f
https://doi.org/10.1038/nature09084

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Effects of multi orbital contributions in the angular-dependent ionization of molecules in intense few-cycle laser pulses

Autor: P. von den Hoff, Matthias F. Kling, Irina Znakovskaya, R. de Vivie-Riedle, Sergey Zherebtsov

Publikováno v: Applied Physics B. 98:659-666

We outline the details of our new method to calculate angular-dependent ionization probabilities based on electronic structure theory for diatomic and larger systems. To demonstrate its abilities, we compare our calculations to measured ionization pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20347fb539c682e0292d155d48fbe193
https://doi.org/10.1007/s00340-009-3860-x

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Attosecond control of the dissociative ionization via electron localization: A comparison between and CO

Autor: Irina Znakovskaya, P. von den Hoff, Matthias F. Kling, R. de Vivie-Riedle

Publikováno v: Chemical Physics. 366:139-147

Laser pulses with stable electric field waveforms establish the opportunity to achieve coherent control on attosecond timescales. A first successful example of electron localization and its control could be demonstrated for the molecules D 2 + and HD

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::616b81fe9b6dfcccb28d9d9532b539a3
https://doi.org/10.1016/j.chemphys.2009.09.021

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Incorporating real time velocity map image reconstruction into closed-loop coherent control

Autor: Matthias F. Kling, N. Gregerson, J. A. McKenna, Mo Zohrabi, Bethany Jochim, Sankar De, Boris Bergues, Irina Znakovskaya, B. Gaire, P. R. Andrews, A. Voznyuk, Itzik Ben-Itzhak, K. D. Carnes, T. G. Burwitz, R. Averin, E. Wells, C. E. Rallis

Publikováno v: The Review of scientific instruments. 85(11)

We report techniques developed to utilize three-dimensional momentum information as feedback in adaptive femtosecond control of molecular dynamics. Velocity map imaging is used to obtain the three-dimensional momentum map of the dissociating ions fol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::230555227f3751df82d371a08429751a
https://pubmed.ncbi.nlm.nih.gov/25430096

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Transition between Mechanisms of Laser-Induced Field-Free Molecular Orientation

Autor: Hui Li, Matthias F. Kling, Irina Znakovskaya, Sankar De, Dipanwita Ray, Michael Spanner, Igor Litvinyuk, Paul B. Corkum, C. L. Cocke

Publikováno v: Physical Review Letters. 112

The transition between two distinct mechanisms for the laser-induced field-free orientation of CO molecules is observed via measurements of orientation revival times and subsequent comparison to theoretical calculations. In the first mechanism, which

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0586e9bba36810e7bf2b52dada2f447e
https://doi.org/10.1103/physrevlett.112.113005

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Compact 0.1-W Source of Octave-Spanning Mid-Infrared Femtosecond Pulses Centered at 10 µm

Autor: Oleg Pronin, Alexander Apolonskiy, Vladimir Pervak, Ferenc Krausz, Zhiyi Wei, Irina Znakovskaya, Jinwei Zhang, Jens Biegert, Marcus Seidel, D. Sánchez, Nikolai Lilienfein, Ioachim Pupeza

Publikováno v: CLEO: 2014 Postdeadline Paper Digest.

We generate octave-spanning pulses centered at 10 µm with 100-mW-scale average powers and 100-MHz repetition rate via intrapulse difference-frequency mixing driven in LiGaS2 by a nonlinearly compressed Kerr-lens mode-locked Yb:YAG thin-disk oscillat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cb6003eb9d402f9715efb01c47140604
https://doi.org/10.1364/cleo_si.2014.sth5c.7

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Subcycle Controlled Charge-Directed Reactivity with Few-Cycle Midinfrared Pulses

Autor: P. von den Hoff, Ferenc Krausz, Irina Znakovskaya, Yunpei Deng, Gilad Marcus, Reinhard Kienberger, Boris Bergues, Sergey Zherebtsov, Marc J. J. Vrakking, Xun Gu, R. de Vivie-Riedle, Matthias F. Kling

Publikováno v: Physical Review Letters

The steering of electron motion in molecules is accessible with waveform-controlled few-cycle laser light and may control the outcome of light-induced chemical reactions. An optical cycle of light, however, is much shorter than the duration of the fa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f362922bdcad8dd0eebed934e4c4382
https://doi.org/10.1103/physrevlett.108.063002

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Orientation dependence of the ionization of CO and NO in an intense femtosecond two-color laser field

Autor: Zhenhua Wang, Wei Cao, Matthias F. Kling, Anh-Thu Le, C. L. Cocke, Hui Li, Sankar De, Irina Znakovskaya, Dipanwita Ray, Guillaume Laurent

Publikováno v: Physical Review A. 84

Two-color (800- and 400-nm) short (45-fs) linearly polarized pulses are used to ionize and dissociate CO and NO. The emission of C${}^{q}$${}^{+}$, N${}^{q}$${}^{+}$, and O${}^{+}$ fragments indicates that the higher ionization rate occurs when the p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b2ca5ca6ad1b746f2a628e1c6d865639
https://doi.org/10.1103/physreva.84.043429

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Following dynamic nuclear wave packets in N2,O2, and CO with few-cycle infrared pulses

Autor: Matthias F. Kling, Sankar De, Irina Znakovskaya, Maia Magrakvelidze, Itzik Ben-Itzhak, Guillaume Laurent, Uwe Thumm, Irina Bocharova, C. L. Cocke, Hui Li, Dipanwita Ray, Igor Litvinyuk, Wei Cao, Zhenhua Wang

Publikováno v: Physical Review A. 84

We study the evolution of nuclear wave packets launched in molecular nitrogen, oxygen, and carbon monoxide by intense 8-fs infrared pulses. We use velocity map imaging to measure the momentum of the ion fragments when these wave packets are interroga

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e078d17e8042c6bbe36e658af289f818
https://doi.org/10.1103/physreva.84.043410

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