Wave packet calculations on the effect of the femtosecond pulse width in the time-resolved photodissociation of CH3I in the A-band

2011 ◽  
Vol 13 (6) ◽  
pp. 2228-2236 ◽  
Author(s):  
A. García-Vela ◽  
L. Bañares
Keyword(s):  
Wave Packet ◽  
Pulse Width ◽  
Femtosecond Pulse ◽  
Time Resolved

Time-resolved single-electron wave-packet detection

2016 ◽  
Vol 254 (3) ◽  
pp. 1600547 ◽  
Author(s):  
Masaya Kataoka ◽  
Jonathan D. Fletcher ◽  
Nathan Johnson
Keyword(s):  
Wave Packet ◽  
Single Electron ◽  
Electron Wave ◽  
Time Resolved ◽  
Electron Wave Packet ◽  
Packet Detection

UlTRAFAST LATTICE RELAXATION DYNAMICS OF EXCITON IN A QUAISI-1-D METAL-HALOGEN COMPLEX

2001 ◽  
Vol 15 (28n30) ◽  
pp. 3965-3968
Author(s):  
ATSUSHI SUGITA ◽  
TAKASHI SAITO ◽  
TAKAYOSHI KOBAYASHI ◽  
MASAHIRO YAMASHITA
Keyword(s):  
Wave Packet ◽  
Free Exciton ◽  
Mixed Valence ◽  
Lattice Relaxation ◽  
Relaxation Dynamics ◽  
Time Resolved ◽  
Pump And Probe ◽  
Probe Spectroscopy ◽  
Electronic Ground ◽  
The Ideal

A quasi-one-dimensional halogen-bridged mixed-valence metal complex is studied by time-resolved pump and probe spectroscopy with sub-5 fs time resolution. Two kinds of oscillatory signals are observed, which are attributed to the wave packet motions both in an electronic ground state and in a self-trapped exciton (STE) state. The onset of the wave packet motion is found to be delayed by about 50 fs, comparing with the ideal wave packet in the electronic excited state. The delay reflects the thermalization process in a free exciton (FE) state and a lattice relaxation process from FE to STE states.

Effect of Different Atmospheres on the Excitation Process of TEA-CO2 Laser-Induced Shock Wave Plasma

1992 ◽  
Vol 46 (4) ◽  
pp. 581-586 ◽  
Author(s):  
H. Kurniawan ◽  
T. Kobayashi ◽  
K. Kagawa
Keyword(s):  
Pulse Width ◽  
Noble Gases ◽  
Tea Co2 Laser ◽  
Total Emission ◽  
Excitation Process ◽  
Time Resolved ◽  
Laser Induced Plasma ◽  
Plasma Characteristics ◽  
Excitation Processes ◽  
Reduced Pressures

The plasma characteristics and excitation process of laser-induced plasma with the use of a TEA CO2 laser of 750 mJ pulse energy and 100 ns pulse width are studied in different surrounding gases at reduced pressures. From the time-resolved spatial distribution, it is clear that in helium and argon atmospheres, two different excitation processes take place in forming the plasma. The first excitation process is due to the blast wave, while the second process is due to the metastable state of the noble gases. It is believed that this second process transfers metastable energy to the vaporized atoms of the target for emission, even long after the laser bombardment ends, thus giving total emission intensity that is higher in the noble gases than in air. The displacement of the front of the emission line under different atmospheres is also presented.

Sign in / Sign up

Export Citation Format

Share Document