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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 1, Iss. 3 — Jul. 1, 2011
  • pp: 332–343

Electrooptical effects in glass forming liquids of dipolar nano-clusters embedded in a paraelectric environment

Alexander Gumennik, Yael Kurzweil-Segev, and Aharon J. Agranat  »View Author Affiliations

Optical Materials Express, Vol. 1, Issue 3, pp. 332-343 (2011)

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Studies of the electrooptic effect in potassium tantalate niobate (KTN) and Li doped KTN in the vicinity of the ferroelectric phase transition are reported. It was observed that in KTN the standard electrooptic behavior is accompanied by electrically induced depolarization of the light traversing through the crystal. This behavior is attributed to the influence of the fluctuating dipolar clusters that are formed in KTN above the ferroelectric phase transition due to the emergence of the Nb ions out of the center of inversion of the unit cell. It was shown in addition that this behavior is inhibited in Li doped KTN, which enables exploiting the large electrooptic effect in these crystals.

© 2011 OSA

OCIS Codes
(160.2100) Materials : Electro-optical materials
(250.4110) Optoelectronics : Modulators
(160.2710) Materials : Inhomogeneous optical media

ToC Category:
Crystalline Materials

Original Manuscript: April 6, 2011
Revised Manuscript: May 26, 2011
Manuscript Accepted: May 26, 2011
Published: June 2, 2011

Alexander Gumennik, Yael Kurzweil-Segev, and Aharon J. Agranat, "Electrooptical effects in glass forming liquids of dipolar nano-clusters embedded in a paraelectric environment," Opt. Mater. Express 1, 332-343 (2011)

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  1. S. E. Lerner, P. Ben Ishai, A. J. Agranat, and Yu. Feldman, “Percolation of polar nanoregions: a dynamic approach to the ferroelectric phase transition,” J. Non-Cryst. Solids 353(47-51), 4422–4427 (2007). [CrossRef]
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