Near infrared photorefractive self focusing in Sn2P2S6:Te crystals

Cristian Dan (1) , Delphine Wolfersberger (1) , Nicolas Fressengeas (1) , Germano Montemezzani (1) , Alexander A. Grabar (2)

1 LMOPS - Laboratoire Matériaux Optiques, Photonique et Systèmes
2 ISSPC - Institute of Solid State Physics and Chemistry [Uzhgorod]

The experimental observation of photorefractive self focusing in Sn2P2S6 : Te bulk crystals at 1.06 mm wavelength is presented. Steady state self focusing is reached as fast as 15 ms for an input peak intensity equal to 160 W/cm2. Self focusing is maximum for input peak intensities around 15 W/cm2 and is decreasing for intensities below and above this value.

Mots clés: SPS; self focusing; photorefractive; infrared; soliton; sps

Domaines: Physique [physics]

Cristian Dan, Delphine Wolfersberger, Nicolas Fressengeas, Germano Montemezzani, Alexander A. Grabar. Near infrared photorefractive self focusing in Sn2P2S6:Te crystals. Optics Express, 2007, 15 (20), pp.12777-12782. ⟨10.1364/OE.15.012777⟩. ⟨hal-00168980⟩