Fizyka - to proste! http://www.fizyka24.eu Nadajemy na tych samych falach! Mon, 22 Mar 2010 04:00:00 +0000 http://wordpress.org/?v=2.9.1 en hourly 1 Role of Autoionizing State in Resonant High-Order Harmonic Generation and Attosecond Pulse Production http://www.fizyka24.eu/role-of-autoionizing-state-in-resonant-high-order-harmonic-generation-and-attosecond-pulse-production/ http://www.fizyka24.eu/role-of-autoionizing-state-in-resonant-high-order-harmonic-generation-and-attosecond-pulse-production/#comments Mon, 22 Mar 2010 04:00:00 +0000 V. Strelkov 10.1103/PhysRevLett.104.123901 We suggest a high-order harmonic generation (HHG) model describing enhancement of the generation efficiency for the harmonic resonant with the transition between the ground and autoionizing state of the generating ion. The results of numerical and analytical calculations based on this model are in g...
[Phys. Rev. Lett. 104, 123901] Published Mon Mar 22, 2010]]>
We suggest a high-order harmonic generation (HHG) model describing enhancement of the generation efficiency for the harmonic resonant with the transition between the ground and autoionizing state of the generating ion. The results of numerical and analytical calculations based on this model are in g...
[Phys. Rev. Lett. 104, 123901] Published Mon Mar 22, 2010]]>
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Tajemniczy słup światła nad piramidą Chichen Itza http://www.fizyka24.eu/tajemniczy-slup-swiatla-nad-piramida-chichen-itza/ http://www.fizyka24.eu/tajemniczy-slup-swiatla-nad-piramida-chichen-itza/#comments Sat, 20 Mar 2010 21:32:11 +0000 Jacolo http://prawdaxlxpl.wordpress.com/?p=548 ]]> ]]> http://www.fizyka24.eu/tajemniczy-slup-swiatla-nad-piramida-chichen-itza/feed/ 0 thelovepolice.eu – Piractwo otwartej przestrzeni – 4 I 2010 http://www.fizyka24.eu/thelovepolice-eu-%e2%80%93-piractwo-otwartej-przestrzeni-%e2%80%93-4-i-2010/ http://www.fizyka24.eu/thelovepolice-eu-%e2%80%93-piractwo-otwartej-przestrzeni-%e2%80%93-4-i-2010/#comments Fri, 19 Mar 2010 20:57:21 +0000 Jacolo http://prawdaxlxpl.wordpress.com/?p=546 ]]> ]]> http://www.fizyka24.eu/thelovepolice-eu-%e2%80%93-piractwo-otwartej-przestrzeni-%e2%80%93-4-i-2010/feed/ 0 Derivation of coupled Maxwell-Schrödinger equations describing matter-laser interaction from first principles of quantum electrodynamics http://www.fizyka24.eu/derivation-of-coupled-maxwell-schrodinger-equations-describing-matter-laser-interaction-from-first-principles-of-quantum-electrodynamics/ http://www.fizyka24.eu/derivation-of-coupled-maxwell-schrodinger-equations-describing-matter-laser-interaction-from-first-principles-of-quantum-electrodynamics/#comments Thu, 18 Mar 2010 04:00:00 +0000 Milan Šindelka 10.1103/PhysRevA.81.033833 We study the general problem of matter-laser interaction within the framework of nonrelativistic quantum electrodynamics, with particular emphasis on strong laser field effects. Consequently, we formulate a well-defined approximation leading in a straightforward manner toward the conventional semicl...
[Phys. Rev. A 81, 033833] Published Thu Mar 18, 2010]]>
We study the general problem of matter-laser interaction within the framework of nonrelativistic quantum electrodynamics, with particular emphasis on strong laser field effects. Consequently, we formulate a well-defined approximation leading in a straightforward manner toward the conventional semicl...
[Phys. Rev. A 81, 033833] Published Thu Mar 18, 2010]]>
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Emission times in high-order harmonic generation http://www.fizyka24.eu/emission-times-in-high-order-harmonic-generation/ http://www.fizyka24.eu/emission-times-in-high-order-harmonic-generation/#comments Thu, 18 Mar 2010 04:00:00 +0000 C. C. Chirilă, I. Dreissigacker, E. V. van der Zwan, and M. Lein 10.1103/PhysRevA.81.033412 We calculate the emission times of the radiation in high-order harmonic generation using the Gabor transform of numerical data obtained from solving the time-dependent Schrödinger equation in one, two, and three dimensions. Both atomic and molecular systems, including nuclear motion, are investigat...
[Phys. Rev. A 81, 033412] Published Thu Mar 18, 2010]]>
We calculate the emission times of the radiation in high-order harmonic generation using the Gabor transform of numerical data obtained from solving the time-dependent Schrödinger equation in one, two, and three dimensions. Both atomic and molecular systems, including nuclear motion, are investigat...
[Phys. Rev. A 81, 033412] Published Thu Mar 18, 2010]]>
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Wavelength-dependent study of trapping molecules in an excited electronic state of I_{2}^{ 2+} with strong laser fields http://www.fizyka24.eu/wavelength-dependent-study-of-trapping-molecules-in-an-excited-electronic-state-of-i_2%e2%80%822-with-strong-laser-fields/ http://www.fizyka24.eu/wavelength-dependent-study-of-trapping-molecules-in-an-excited-electronic-state-of-i_2%e2%80%822-with-strong-laser-fields/#comments Thu, 18 Mar 2010 04:00:00 +0000 L. Fang and G. N. Gibson 10.1103/PhysRevA.81.033410 Using the B ^{3} Π_{u}^{+} state of neutral I_{2} as an intermediate state, we populate an excited electronic state, designated as (2,0), of I_{2}^{ 2+}  in its bound region of internuclear separation with short laser pulses. Trapping of the molecules in the (2,0) state is deduced from the disa...
[Phys. Rev. A 81, 033410] Published Thu Mar 18, 2010]]>
Using the B ^{3} Π_{u}^{+} state of neutral I_{2} as an intermediate state, we populate an excited electronic state, designated as (2,0), of I_{2}^{ 2+}  in its bound region of internuclear separation with short laser pulses. Trapping of the molecules in the (2,0) state is deduced from the disa...
[Phys. Rev. A 81, 033410] Published Thu Mar 18, 2010]]>
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Tomasz Sekielski – Władcy Marionetek http://www.fizyka24.eu/tomasz-sekielski-%e2%80%93-wladcy-marionetek/ http://www.fizyka24.eu/tomasz-sekielski-%e2%80%93-wladcy-marionetek/#comments Wed, 17 Mar 2010 07:32:16 +0000 Jacolo http://prawdaxlxpl.wordpress.com/?p=542 ]]> ]]> http://www.fizyka24.eu/tomasz-sekielski-%e2%80%93-wladcy-marionetek/feed/ 0 Z.J.Popko – Prawo przyciągania i kreacji http://www.fizyka24.eu/z-j-popko-%e2%80%93-prawo-przyciagania-i-kreacji/ http://www.fizyka24.eu/z-j-popko-%e2%80%93-prawo-przyciagania-i-kreacji/#comments Sun, 14 Mar 2010 14:48:29 +0000 Jacolo http://prawdaxlxpl.wordpress.com/?p=539 ]]> ]]> http://www.fizyka24.eu/z-j-popko-%e2%80%93-prawo-przyciagania-i-kreacji/feed/ 0 Small phase-space structures and their relevance to pulsed quantum evolution: Stepwise ionization of the excited hydrogen atom in a microwave pulse http://www.fizyka24.eu/small-phase-space-structures-and-their-relevance-to-pulsed-quantum-evolution-stepwise-ionization-of-the-excited-hydrogen-atom-in-a-microwave-pulse/ http://www.fizyka24.eu/small-phase-space-structures-and-their-relevance-to-pulsed-quantum-evolution-stepwise-ionization-of-the-excited-hydrogen-atom-in-a-microwave-pulse/#comments Fri, 12 Mar 2010 05:00:00 +0000 Luca C. Perotti 10.1103/PhysRevA.81.033407 Experiments have shown that the microwave ionization probability of a highly excited, almost monodimensional, hydrogen atom subjected to a microwave pulse sometimes grows in steps when the peak electric field of the pulse is increased. Classical pulsed simulations display the same steps, which have ...
[Phys. Rev. A 81, 033407] Published Fri Mar 12, 2010]]>
Experiments have shown that the microwave ionization probability of a highly excited, almost monodimensional, hydrogen atom subjected to a microwave pulse sometimes grows in steps when the peak electric field of the pulse is increased. Classical pulsed simulations display the same steps, which have ...
[Phys. Rev. A 81, 033407] Published Fri Mar 12, 2010]]>
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Electron Rescattering in Above-Threshold Photodetachment of Negative Ions http://www.fizyka24.eu/electron-rescattering-in-above-threshold-photodetachment-of-negative-ions/ http://www.fizyka24.eu/electron-rescattering-in-above-threshold-photodetachment-of-negative-ions/#comments Fri, 12 Mar 2010 05:00:00 +0000 A. Gazibegović-Busuladžić, D. B. Milošević, W. Becker, B. Bergues, H. Hultgren, and I. Yu. Kiyan 10.1103/PhysRevLett.104.103004 We present experimental and theoretical results on photodetachment of Br^{-} and F^{-} in a strong infrared laser field. The observed photoelectron spectra of Br^{-} exhibit a high-energy plateau along the laser polarization direction, which is identified as being due to the rescattering effect. The...
[Phys. Rev. Lett. 104, 103004] Published Fri Mar 12, 2010]]>
We present experimental and theoretical results on photodetachment of Br^{-} and F^{-} in a strong infrared laser field. The observed photoelectron spectra of Br^{-} exhibit a high-energy plateau along the laser polarization direction, which is identified as being due to the rescattering effect. The...
[Phys. Rev. Lett. 104, 103004] Published Fri Mar 12, 2010]]>
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