Piezoelectric and optical setup to measure an electrical field: Application to the longitudinal near-field generated by a tapered coax

Sébastien Euphrasie (1) , Pascal Vairac (1) , Bernard Cretin (1) , Glawdys Lengaigne (1)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

We propose a new setup to measure an electrical field in one direction. This setup is made of a piezoelectric sintered lead zinconate titanate film and an optical interferometric probe. We used this setup to investigate how the shape of the extremity of a coaxial cable influences the longitudinal electrical near-field generated by it. For this application, we designed our setup to have a spatial resolution of 100 um in the direction of the electrical field. Simulations and experiments are presented.

Mots clés: Piezoelectric; optical probe; near-field; electrical sensor; tapered coax

Domaines: Instrumentations et Détecteurs [physics.ins-det]

Sébastien Euphrasie, Pascal Vairac, Bernard Cretin, Glawdys Lengaigne. Piezoelectric and optical setup to measure an electrical field: Application to the longitudinal near-field generated by a tapered coax. Review of Scientific Instruments, 2008, pp.034704. ⟨10.1063/1.2901543⟩. ⟨hal-00340414⟩