Title :
Probing AC Stark shift with attosecond transient absorption
Author :
Chini, Michael ; Zhao, Baozhen ; Chang, Zenghu
Author_Institution :
Dept. of Phys., Univ. of Central Florida, Orlando, FL, USA
Abstract :
The dynamics of helium 1snp excited states in an intense, few-cycle laser pulse are probed using isolated attosecond pulses in a transient absorption scheme. In addition to the dynamic Stark shift, we observe half-cycle oscillations.
Keywords :
Stark effect; atom-photon collisions; excited states; helium; high-speed optical techniques; photoexcitation; spectral line shift; AC Stark shift; He; attosecond transient absorption; dynamic Stark shift; half cycle oscillations; helium excited state dynamics; intense few cycle laser pulse; isolated attosecond pulses; transient absorption scheme; Absorption; Atomic measurements; Helium; Laser excitation; Laser theory; Measurement by laser beam; Oscillators;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
