Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Rapid Grating Compensation in Iron-doped Paraelectric KLTN

Not Accessible

Your library or personal account may give you access

Abstract

Material parameters relevant to the photorefractive effect in the paraelectric phase are compared for KLTN doped with iron and KLTN doped with copper. Unlike copper-doped crystals, iron-doped KLTN shows an efficient thermal fixing process occurring at room temperature. Measurements as a function of temperature and applied field reveal the compensation to be a thermally activated process with an activation energy of 1.05 eV, but the process is only weakly dependent on field. FTIR measurements indicate the presence of hydrogen and conductivity measurements suggest that hydrogen migration is the dominant contribution to the conductivity, reinforcing the conclusion that the crystals show "thermal fixing" at room temperature.

© 2001 Optical Society of America

PDF Article
More Like This
Dielectric Photorefractive Gratings in KLTN at the Paraelectric Phase

Aharon J. Agranat, Meir Razvag, and Michal Balberg
NTuA.3 Nonlinear Optics: Materials, Fundamentals and Applications (NLO) 1996

Mechanisms of dark decay of holograms in lithium niobate crystals

Yunping Yang, Ingo Nee, Karsten Buse, and Demetri Psaltis
144 Photorefractive Effects, Materials, and Devices (PR) 2001

The structure of KLTN and the nature of its ferroelectric transition, as determined by neutron diffraction studies.

R. Gatt, G. Perpelipsa, P. Russian, M. Ben-Moshe, and A. J. Agranat
217 Photorefractive Effects, Materials, and Devices (PR) 2001

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved