An experimental setup of time resolved frequency up-conversion exployed for studying picosecond superfluoresoence (SF) spectra kinetics processes in dye solutions was reported and the experimental results was given in this paper. The dependence of the SF pulse width compression, the shift of the SF centre wavelength and the gain band on pump pulse parameters and dye concentrations were studied experimentally.

Acta Optica SinicaJan 1, 19890 citations

Observation of picosecond superfluorescent pulses in rubidium atomic vapor pumped by 100-fs laser pulses

Gombojav O. Ariunbold, Michael M. Kash, Vladimir A. Sautenkov +4 more

Physical Review AOct 20, 201052 citations

Journal of Applied Spectroscopy

Time-dependent and spectral characteristics of the superfluorescence of dye solutions in picosecond excitation

Boris A. Bushuk, A. A. Murav'ev, Anatoly N. Rubinov

Published Mar 1, 1984• 0 citations

Publisher

DOI: 10.1007/bf00661507

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Observation of picosecond superfluorescent pulses in rubidium atomic vapor pumped by 100-fs laser pulses

Gombojav O. Ariunbold, Michael M. Kash, Vladimir A. Sautenkov +4 more

We study the superfluorescence (SF) from a gas of rubidium atoms. The atoms of a dense vapor are excited to the $5D$ state from the $5S$ state by a two-photon process driven by 100-fs laser pulses. The atoms decay to the $6P$ state and then to the $5S$ state. The SF emission at 420 nm on the $6P$ -- $5S$ transition is recorded by a streak camera with picosecond time resolution. The time duration of the generated SF is tens of picoseconds, which is much shorter than the time scale of the usual relaxation processes, including spontaneous emission and atomic coherence dephasing. The dependence of the time delay between the reference input pulse and SF is measured as a function of laser power. The experimental data are described quantitatively by a simulation based on the semiclassical atom-field interaction theory. The observed change in scaling laws for the peak intensity and delay time can be elucidated by an SF theory in which the sample length is larger than the cooperation length.We study the superfluorescence (SF) from a gas of rubidium atoms. The atoms of a dense vapor are excited to the $5D$ state from the $5S$ state by a two-photon process driven by 100-fs laser pulses. The atoms decay to the $6P$ state and then to the $5S$ state. The SF emission at 420 nm on the $6P$--$5S$ transition is recorded by a streak camera with picosecond time resolution. The time duration of the generated SF is tens of picoseconds, which is much shorter than the time scale of the usual relaxation processes, including spontaneous emission and atomic coherence dephasing. The dependence of the time delay between the reference input pulse and SF is measured as a function of laser power. The experimental data are described quantitatively by a simulation based on the semiclassical atom-field interaction theory. The observed change in scaling laws for the peak intensity and delay time can be elucidated by an SF theory in which the sample length is larger than the cooperation length.

Physical Review AOct 20, 201052 citations

We study the superfluorescence (SF) from a gas of rubidium atoms. The atoms of a dense vapor are excited to the

5D

state from the

5S

state by a two-photon process driven by 100-fs laser pulses. The atoms decay to the

6P

state and then to the

5S

state. The SF emission at 420 nm on the

6P

5S

transition is recorded by a streak camera with picosecond time resolution. The time duration of the generated SF is tens of picoseconds, which is much shorter than the time scale of the usual relaxation processes, including spontaneous emission and atomic coherence dephasing. The dependence of the time delay between the reference input pulse and SF is measured as a function of laser power. The experimental data are described quantitatively by a simulation based on the semiclassical atom-field interaction theory. The observed change in scaling laws for the peak intensity and delay time can be elucidated by an SF theory in which the sample length is larger than the cooperation length.