Stable electro-optic striation grating produced by programed periodic modulation of the growth temperature

Aharon J. Agranat*, Roy Kaner, Galina Perpelitsa, Yehudit Garcia

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Electrically controlled Bragg gratings implemented by periodic striations that were produced during the crystal growth are demonstrated in potassium lithium tantalate niobate crystals. The striations were generated by blowing air with periodic flow at the flux surface. The gratings were investigated by measurements of the diffraction efficiency versus the applied electric field. It was found that the composition grating induced correlated gratings of the refractive index and the low frequency dielectric constant. The latter, under the application of a uniform electric field, produced an electrically controlled birefringence grating through the quadratic electro-optic effect.

Original languageAmerican English
Article number192902
JournalApplied Physics Letters
Volume90
Issue number19
DOIs
StatePublished - 2007

Bibliographical note

Funding Information:
This research was supported in part by Grant No. 2002341 from the United States-Israel Binational Science Foundation (BSF), Jerusalem, Israel.

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