Association Reaction of Gaseous C2H4 in Femtosecond Laser Filaments Studied by Time-of-Flight Mass Spectrometry.
Akitaka Matsuda,Kentaro Tani,Yukari Takeuchi,Yui Hayakawa,Akiyoshi Hishikawa +4 more
- Vol. 6, Iss: 44, pp 29862-29868
Reads0
Chats0
TLDR
In this paper, a femtosecond laser filamentation in gaseous C2H4 was studied by time-of-flight mass spectrometry of neutral reaction products.Abstract:
Association reactions by femtosecond laser filamentation in gaseous C2H4 were studied by time-of-flight mass spectrometry of neutral reaction products. Direct sampling from the reaction cell to a mass spectrometer via a differential pumping stage allowed the identification of various hydrocarbon molecules C n H m with n = 3-7 and m = 4-7, which includes species not observed in the previous studies. It was found that products containing three and four carbon atoms dominate the mass spectrum with smaller yields for higher-mass species, suggesting that carbon chain growth proceeds through the reaction with C2H4 in the reaction cell. The product distribution showed a clear dependence on the laser pulse energy for filamentation.read more
Citations
More filters
Journal ArticleDOI
Experimental study on counter-propagating filaments in air
TL;DR: In this paper , the authors investigate the interaction of two collinearly counter-propagating filaments in air and find that the fluorescence is enhanced by 4 times due to the increase of the clamped intensity and electron density.
Proceedings ArticleDOI
Atmospheric Photochemistry of Volatile Organic Compounds Triggered by Mid-IR Filaments
Valentina Shumakova,Elise Schubert,Skirmantas Alisauskas,Denis Mongin,Mary Matthews,Tadas Balciunas,Audrius Pugzlys,Jérôme Kasparian,Andrius Baltuška,Jean-Pierre Wolf +9 more
TL;DR: In this article , the experimental demonstration of the laser induced aerosol formation driven by high-energy mid-IR pulses and facilitated by resonance excitation and subsequent oxidation of the ambient volatile organic compounds is presented.
References
More filters
Journal ArticleDOI
Femtosecond filamentation in transparent media
Arnaud Couairon,André Mysyrowicz +1 more
TL;DR: In this paper, the main aspects of ultrashort laser pulse filamentation in various transparent media such as air (gases), transparent solids and liquids are introduced and discussed.
Tunnel ionization of complex atoms and of atomic ions in an altemating electromagnetic field
TL;DR: In this article, an expression for the probability of tunnel ionization in an alternating field, of a complex atom and of an atomic ion that are in an arbitrary state, was derived in the quasiclassical approximation n* $1.
Journal ArticleDOI
Control of Chemical Reactions by Feedback-Optimized Phase-Shaped Femtosecond Laser Pulses
TL;DR: Tailored femtosecond laser pulses from a computer-controlled pulse shaper were used to optimize the branching ratios of different organometallic photodissociation reaction channels, showing that two different bond-cleaving reactions can be selected, resulting in chemically different products.
Journal ArticleDOI
Ultrashort filaments of light in weakly ionized, optically transparent media
TL;DR: In this article, the authors present the landmarks of the 10-odd-year progress in this field, focusing on the theoretical modeling of the propagation equations, whose physical ingredients are discussed from numerical simulations.
Journal ArticleDOI
Selective Bond Dissociation and Rearrangement with Optimally Tailored, Strong-Field Laser Pulses
TL;DR: Strong-field control appears to have generic applicability for manipulating molecular reactivity because the tailored intense laser fields can dynamically Stark shift many excited states into resonance, and consequently, the method is not confined by resonant spectral restrictions found in the perturbative (weak-field) regime.