Naslov
Near-resonant femtosecond laser induced cone emission from rubidium vapor

Autori
Vdović, Silvije ; Skenderović, Hrvoje ; Školnik, Gordana ; Ban, Ticijana ; Vujičić, Nataša ; Aumiler, Damir ; Pichler, Goran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Abstracts of the 19th International Conference on Spectral Line Shapes ; u: AIP Conference proceedings 1058, Spectral Line Shapes 15 (2008) / Gigosos, Marco A. ; González, Manuel Á. - Valladolid, 2008, 360-362

ISBN
978-0-7354-0588-2

Skup
International Conference on Spectral Line Shapes (19 ; 2008)

Mjesto i datum
Valladolid, Španjolska, 15.06.2008. - 20.06.2008

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
cone emission; frequency-resolved optical gating; rubidium vapor

Sažetak
In this work we report the CE from the dense rubidium vapor excited by the output from the mode-locked, 100 fs laser oscillator. The cone emission was observed only when the laser beam propagated through the high-density vapor (N>5x1016 cm− 3) and for the smaller densities no CE was observed. The laser central wavelength was changed in the wide interval, from the far blue wing of the D2 line to the far red wing of the D1 line. The observed CE in the far blue wing of the D2 line is interpreted as a consequence of the self-focusing and self-phase modulation according to the adiabatic following limit. The emission in the red wing of the D2 line shows defocusing of the propagating beam. In contrast to the CE reported so far, the bright central spot was not observed in the far blue wing. In the near blue wing the central spot appears due to the two- photon resonance at 778 nm. The temporal shape of the CE, measured by cross-correlation in the SHG crystal shows pulse breaking and extreme lengthening.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
Doi:10.1063/1.3026481

POVEZANOST RADA