Refine your search�ソスF     
Report No.
 - 

Non-adiabatic transition in C$$_{2}$$H$$_{5}$$OH$$^{+}$$ on a light-dressed potential energy surface by ultrashort pump-and-probe laser pulses

Yazawa, Hiroki*; Shioyama, Tadamasa*; Hashimoto, Hiroshi*; Kannari, Fumihiko*; Itakura, Ryuji; Yamanouchi, Kaoru*

We experimentally investigate the dynamics of vibrational wave packets on the light-dressed-potential energy surface (LD-PES) of C$$_{2}$$H$$_{5}$$OH$$^{+}$$ using a pump-and-probe pulse excitation scheme. The probability of non-adiabatic transition at 800 nm from the singly ionized ground state to the repulsive excited state leading to C-O bond breaking is enhanced when a probe laser pulse is delayed by around 180 fs. At this pulse delay, on the other hand, C-C bond breaking is significantly suppressed. Therefore, the deformation of LDPES is considered to change the direction of the wave packet traveling originally along the C-C stretching into the direction along the C-O stretching. This non-adiabatic transition leading to the redirection of the dissociating wave packet is found to occur more efficiently at the probe laser wavelengths at 400 nm than at 800 nm. The critical pulse delay is still around 180 fs even at 400 nm.

Accesses

:

- Accesses

InCites™

:

Percentile:28.75

Category:Optics

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.