Details

Autor(en) / Beteiligte

• Falsi, L.
• di Mei, F.
• Flammini, M.
• Ptet-Anaeli, D.
• di Por'to, P.
• Agranat, A. J.
• DelRe, E. E.

Titel

Giant Broadband Refraction in the Visible in a Disordered Ferroelectric Perovskite

Ist Teil von

• 2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring), 2019, p.1647-1655

Ort / Verlag

IEEE

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In this work we report broadband refraction and diffraction experiments in a ferroelectric perovskite, a solid-solution K 0.997 Ta 0.64 Nb 0 .36:Li 0.003 (KTN:Li), that demonstrate an index of refraction of n > 26 across the entire visible spectrum. The sample has a natural-occurring room temperature phase that propagates visible light along its normal axis without significant diffraction or chromatic dispersion, irrespective of beam size, intensity, and angle of incidence.