| Autor: |
Li H, Kling NG, Gaumnitz T, Burger C, Siemering R, Schötz J, Liu Q, Ban L, Pertot Y, Wu J, Azzeer AM, de Vivie-Riedle R, Wörner HJ, Kling MF |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2017 Jun 26; Vol. 25 (13), pp. 14192-14203. |
| DOI: |
10.1364/OE.25.014192 |
| Abstrakt: |
Directional breaking of the C-H/C-D molecular bond is manipulated in acetylene (C 2 H 2 ) and deuterated acetylene (C 2 D 2 ) by waveform controlled few-cycle mid-infrared laser pulses with a central wavelength around 1.6 μm at an intensity of about 8 × 10 13 W/cm 2 . The directionality of the deprotonation of acetylene is controlled by changing the carrier-envelope phase (CEP). The CEP-control can be attributed to the laser-induced superposition of vibrational modes, which is sensitive to the sub-cycle evolution of the laser waveform. Our experiments and simulations indicate that near-resonant, intense mid-infrared pulses permit a higher degree of control of the directionality of the reaction compared to those obtained in near-infrared fields, in particular for the deuterated species. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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