Title :
Optical nutation with population inversion on Raman transition at pulse biharmonic excitation
Author :
Anikeev, S.V. ; Kuliasov, V.N. ; Morozov, V.B. ; Olenin, A.N. ; Tunkin, V.G.
Author_Institution :
Int. Laser Center, Lomonosov (M.V.) State Univ., Moscow, Russia
Abstract :
Summary form only given. Optical nutation at pulse biharmonic excitation of Raman transition accompanied by considerable, up to inverse, population changes was observed. The optical nutation manifested itself in corresponding changes of polarization and upper level population of the thallium 6P/sub 1/2/-6P/sub 3/2/ transition excited by picosecond pulses of a dye and a Nd:YAG lasers and probed by delayed pulses by means of coherent Raman scattering and third harmonic generation schemes. As a result of the AC Stark shift, the nutation picture strongly depended on the sign of frequency detuning from the transition frequency.
Keywords :
Raman spectra; Stark effect; atom-photon collisions; optical coherent transients; optical harmonic generation; photoexcitation; population inversion; quantum optics; spectral line shift; thallium; 6P/sub 1/2/-6P/sub 3/2/ transition; AC Stark shift; Nd:YAG laser; Raman transition; Tl; YAG:Nd; YAl5O12:Nd; coherent Raman scattering; delayed pulses; dye laser; frequency detuning; nutation picture; optical nutation; picosecond pulses; polarization; population changes; population inversion; pulse biharmonic excitation; third harmonic generation schemes; transition frequency; upper level population; Delay; Frequency; Laser excitation; Laser transitions; Nonlinear optics; Optical harmonic generation; Optical polarization; Optical pulse generation; Optical pulses; Optical scattering;
Conference_Titel :
Quantum Electronics Conference, 2000. Conference Digest. 2000 International
Conference_Location :
Nice, France
Print_ISBN :
0-7803-6318-3
DOI :
10.1109/IQEC.2000.908026
