The University of Southampton
University of Southampton Institutional Repository

Mechanism of photorefractive enhancement of photochromic gratings in BSO - Experimental results and phenomenological modelling

Jeffrey, P.M., Clapham, S.L., Eason, R.W., Fish, D.A., Powell, A.K., Hall, T.J. and Vainos, N.A. (1993) Mechanism of photorefractive enhancement of photochromic gratings in BSO - Experimental results and phenomenological modelling Optics Communications, 98, (4-6), pp. 357-365.

Record type: Article


We report an increase of more than a factor of 100 in the diffraction efficiency from photochromic gratings written in BSO by uniformly illuminating these gratings with 488 nm light to induce secondary photorefractive gratings. Upon application of an electric field, the phase shift between the two gratings can he varied and under appropriate conditions the diffraction efficiency can increase. The dependence of the enhanced diffraction efficiency as a function of the applied electric field and readout beam polarisation was experimentally investigated for two different crystal orientations. Phenomenological modelling is presented requiring modifications to the phase angle between the photochromic and induced photorefractive gratings in order to reproduce the experimentally observed asymmetry in the increase in the diffraction efficiency. This suggests a periodic modulation of the photorefractive donor/acceptor density, due to the presence of the photochromic grating.

Full text not available from this repository.

More information

Published date: 1993


Local EPrints ID: 78506
ISSN: 0030-4018
PURE UUID: 3f23f845-d78b-4e23-9669-a1ce20c72c73
ORCID for R.W. Eason: ORCID iD

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 12 Oct 2017 20:11

Export record


Author: P.M. Jeffrey
Author: S.L. Clapham
Author: R.W. Eason ORCID iD
Author: D.A. Fish
Author: A.K. Powell
Author: T.J. Hall
Author: N.A. Vainos

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.