Experimental self-focusing of a single laser pulse in photorefractive Bi12TiO20

Delphine Wolfersberger (1) , Nicolas Fressengeas (1) , Jean Maufoy (1) , Godefroy Kugel (1)

1 LMOPS - Laboratoire Matériaux Optiques, Photonique et Systèmes

A single 5 ns laser pulse is experimentally shown to self-focus in electrically biased Bi12TiO20. Systematic measurements have been conducted in order to characterize the physics of fast photorefractive self-focusing. The influence of the externally applied electric field, the incident energy density, the input beam waist and polarization state are reported.

Domaines: Optique [physics.optics]

Delphine Wolfersberger, Nicolas Fressengeas, Jean Maufoy, Godefroy Kugel. Experimental self-focusing of a single laser pulse in photorefractive Bi12TiO20. Journal of Applied Physics, 2001, 89 (5), pp.2511-2515. ⟨10.1063/1.1341207⟩. ⟨hal-00256673⟩