Abstract

We present a new phase-sweep method for characterizing laser-induced complex dielectric gratings. This characterization requires four parameters: the amplitudes and the spatial phases of both the refractive-index and the absorption components. We apply this phase-sweep method to study a complex polarizability grating in a nominally undoped cubic photorefractive Bi12TiO20 crystal. We determine the polarizability difference αfe between a full and an empty photoexcitable deep trap at 633 nm in Bi12TiO20 to be (2.5 − 8.3i ± 1.0 ± 3.3i) × 10−40 F m2 in SI units or (2.3 − 7.5i ± 0.9 ± 3.0i) × 10−24 cm3 in Gaussian units.

© 1994 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Dynamic holographic moiré patterns in photorefractive Bi12TiO20 and small-angle measurements

Paulo Acioly Marques dos Santos, Luis Carlos da Silva Nunes, and Inaya Corrêa
Appl. Opt. 39(25) 4524-4528 (2000)

Electro-optic and photorefractive properties of Bi4Ge3O12 crystals in the ultraviolet spectral range

G. Montemezzani, St. Pfändler, and P. Günter
J. Opt. Soc. Am. B 9(7) 1110-1117 (1992)

Recording and erasure of photorefractive holograms in undoped BTO crystal at moderate to high intensities of 639.7  nm laser under action of 532  nm laser pre-illumination

W. R. Lopes, H. F. A. Medeiros, G. S. Santos, T. C. Araujo, J. F. Carvalho, P. V. dos Santos, and M. T. de Araujo
J. Opt. Soc. Am. A 35(11) 1919-1928 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription