Conical Cherenkov-type emission in a three-level system

I. Golub, R. Shuker

Research output: Contribution to conferencePaperpeer-review


Conical light emission is observed when an intense quasi-resonant laser beam propagates in an atomic vapor. A model of Cherenkov radiation by laser-induced moving polarization was previously proposed to account for the origin and angular/spectral dependencies of the conical emission. The authors provide results on conical emission in Na supporting the Cherenkov-type radiation model. The forward light spectrum for a 15-ns laser pulse blue-detuned with respect to the D2 line at [Na]= 4.8 × 1015 cm-3 is shown. For certain laser detunings the conical emission has a small component on the red side of the D1 line. This observation is interpreted as strong evidence that the conical emission can be explained by the Cherenkov model.

Original languageEnglish
Number of pages2
StatePublished - 1 Dec 1989
Externally publishedYes
EventQuantum Electronics and Laser Science Conference - Baltimore, MD, USA
Duration: 24 Apr 198928 Apr 1989


ConferenceQuantum Electronics and Laser Science Conference
CityBaltimore, MD, USA

ASJC Scopus subject areas

  • Engineering (all)


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