TY - JOUR
T1 - Real-time observation of dynamics in rotational molecular wave packets by use of air-laser spectroscopy
AU - Zeng, Bin
AU - Chu, Wei
AU - Li, Guihua
AU - Yao, Jinping
AU - Zhang, Haisu
AU - Ni, Jielei
AU - Jing, Chenrui
AU - Xie, Hongqiang
AU - Cheng, Ya
PY - 2014/4/21
Y1 - 2014/4/21
N2 - Molecular rotational spectroscopy based on a strong-field-ionization- induced nitrogen laser is employed to investigate the time evolution of the rotational wave packet composed by a coherent superposition of quantum rotational states created in a field-free molecular alignment. We show that this technique uniquely allows real-time observation of the ultrafast dynamics of the molecular rotational wave packet. Our analysis also shows that there exist two channels of generation of the nitrogen laser, shedding light on the population inversion mechanism behind the air laser generated by intense femtosecond laser pulses.
AB - Molecular rotational spectroscopy based on a strong-field-ionization- induced nitrogen laser is employed to investigate the time evolution of the rotational wave packet composed by a coherent superposition of quantum rotational states created in a field-free molecular alignment. We show that this technique uniquely allows real-time observation of the ultrafast dynamics of the molecular rotational wave packet. Our analysis also shows that there exist two channels of generation of the nitrogen laser, shedding light on the population inversion mechanism behind the air laser generated by intense femtosecond laser pulses.
UR - https://www.scopus.com/pages/publications/84899085195
U2 - 10.1103/PhysRevA.89.042508
DO - 10.1103/PhysRevA.89.042508
M3 - 文章
AN - SCOPUS:84899085195
SN - 1050-2947
VL - 89
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
M1 - 042508
ER -