Title :
Sub-cycle AC Stark shift
Author :
Chini, Michael ; Zhao, Baozhen ; Wang, He ; Cheng, Yan ; Hu, S.X. ; Chang, Zenghu
Author_Institution :
Dept. of Phys., Univ. of Central Florida, Orlando, FL, USA
Abstract :
By probing the optical Stark shifts induced by a few-cycle laser field using isolated attosecond pulses in a transient absorption scheme, we uncover a sub-cycle-laser-induced AC Stark shift in excited states of the helium atom.
Keywords :
Stark effect; atom-photon collisions; excited states; helium neutral atoms; high-speed optical techniques; spectral line shift; He; excited states; few-cycle laser field; helium atom; isolated attosecond pulses; subcycle AC Stark shift; transient absorption; Absorption; Free electron lasers; Helium; Laser excitation; Measurement by laser beam; Transient analysis; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
