High pressure spectroscopy of chromium doped LiTaO₃ crystals

Yongrong Shen Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, WA, 99164

Kevin L. Bray Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, WA, 99164

Marek Grinberg Institute of Experimental Physics, University of Gdansk, Wita Stwosza 57, 80-952, Gdansk, Poland

Justyna Barzowska Institute of Experimental Physics, University of Gdansk, Wita Stwosza 57, 80-952, Gdansk, Poland

Irena Sókolska W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Science, Wroclaw, P.O. Box 1410, Poland

Abstract

The effect of pressure on the luminescence spectrum of the weak field system Cr³⁺ : LiTaO₃ is presented. By using pressure to induce a low to high crystal field strength transition, we demonstrate the ability of pressure to identify distinct dopant bonding environments in luminescent materials.

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High pressure spectroscopy of chromium doped LiTaO₃ crystals