64 citations · 89 across the 3 of their papers we have counts for
3 papers
Annular interdigital transducer focuses piezoelectric surface waves to a single point
Vincent Laude, Davy Gérard, Naima Khelfaoui +3
We propose and demonstrate experimentally the concept of the annular interdigital transducer that focuses acoustic waves on the surface of a piezoelectric material to a single, dif…
Roles of resonance and dark irradiance for infrared photorefractive self-focusing and solitons in bi-polar InP:Fe
Nicolas Fressengeas, Naima Khelfaoui, Cristian Dan +4
This paper shows experimental evidence of photorefractive steady state self-focusing in InP:Fe for a wide range of intensities, at both 1.06 and 1.55m. To explain those results,…
Temporal behavior of two-wave-mixing in photorefractive InP:Fe versus temperature
Naima Khelfaoui, Delphine Wolfersberger, Godefroy Kugel +2
The temporal response of two-wave-mixing in photorefractive InP:Fe under a dc electric field at different temperatures has been studied. In particular, the temperature dependence o…