Real-time imaging of kinetics of 180° domains in ferroelectric LiTaO3 crystals for integrated optics

Venkatraman Gopalan; Terence E. Mitchell; Kurt E. Sickatus

Real-time imaging of kinetics of 180° domains in ferroelectric LiTaO₃ crystals for integrated optics

Venkatraman Gopalan, Terence E. Mitchell, Kurt E. Sickatus

Research output: Contribution to conference › Paper › peer-review

Abstract

A real-time video of nucleating and growing 180° domains at room temperature in ferroelectric LiTaO₃ crystals under an external electric field was recorded using nondestructive polarized light microscopy technique. The kinetics of the first reversal of a virgin crystal was studied. The switching time, sideways wall velocity and nucleation rate of 180° domains all show an exponential behavior. It is also shown that point defects play a critical role in the switching kinetics of 180° domains in LiTaO₃. Hence, chemically patterning the crystal composition provides the best means of microengineering ferroelectric 180° domains in LiTaO₃ for integrated optical applications such as electrooptical scanners, lenses, and quasi-phase matched frequency doublers.

Original language	English (US)
Pages	254
Number of pages	1
State	Published - 1998
Event	Proceedings of the 1998 Conference on Lasers and Electro-Optics, CLEO - San Francisco, CA, USA Duration: May 3 1998 → May 8 1998

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Other	Proceedings of the 1998 Conference on Lasers and Electro-Optics, CLEO
City	San Francisco, CA, USA
Period	5/3/98 → 5/8/98

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Electrical and Electronic Engineering

Cite this

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title = "Real-time imaging of kinetics of 180° domains in ferroelectric LiTaO3 crystals for integrated optics",

abstract = "A real-time video of nucleating and growing 180° domains at room temperature in ferroelectric LiTaO3 crystals under an external electric field was recorded using nondestructive polarized light microscopy technique. The kinetics of the first reversal of a virgin crystal was studied. The switching time, sideways wall velocity and nucleation rate of 180° domains all show an exponential behavior. It is also shown that point defects play a critical role in the switching kinetics of 180° domains in LiTaO3. Hence, chemically patterning the crystal composition provides the best means of microengineering ferroelectric 180° domains in LiTaO3 for integrated optical applications such as electrooptical scanners, lenses, and quasi-phase matched frequency doublers.",

author = "Venkatraman Gopalan and Mitchell, {Terence E.} and Sickatus, {Kurt E.}",

year = "1998",

language = "English (US)",

pages = "254",

note = "Proceedings of the 1998 Conference on Lasers and Electro-Optics, CLEO ; Conference date: 03-05-1998 Through 08-05-1998",

}

TY - CONF

T1 - Real-time imaging of kinetics of 180° domains in ferroelectric LiTaO3 crystals for integrated optics

AU - Gopalan, Venkatraman

AU - Mitchell, Terence E.

AU - Sickatus, Kurt E.

PY - 1998

Y1 - 1998

N2 - A real-time video of nucleating and growing 180° domains at room temperature in ferroelectric LiTaO3 crystals under an external electric field was recorded using nondestructive polarized light microscopy technique. The kinetics of the first reversal of a virgin crystal was studied. The switching time, sideways wall velocity and nucleation rate of 180° domains all show an exponential behavior. It is also shown that point defects play a critical role in the switching kinetics of 180° domains in LiTaO3. Hence, chemically patterning the crystal composition provides the best means of microengineering ferroelectric 180° domains in LiTaO3 for integrated optical applications such as electrooptical scanners, lenses, and quasi-phase matched frequency doublers.

AB - A real-time video of nucleating and growing 180° domains at room temperature in ferroelectric LiTaO3 crystals under an external electric field was recorded using nondestructive polarized light microscopy technique. The kinetics of the first reversal of a virgin crystal was studied. The switching time, sideways wall velocity and nucleation rate of 180° domains all show an exponential behavior. It is also shown that point defects play a critical role in the switching kinetics of 180° domains in LiTaO3. Hence, chemically patterning the crystal composition provides the best means of microengineering ferroelectric 180° domains in LiTaO3 for integrated optical applications such as electrooptical scanners, lenses, and quasi-phase matched frequency doublers.

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M3 - Paper

AN - SCOPUS:0031640921

SP - 254

T2 - Proceedings of the 1998 Conference on Lasers and Electro-Optics, CLEO

Y2 - 3 May 1998 through 8 May 1998

ER -

Real-time imaging of kinetics of 180° domains in ferroelectric LiTaO₃ crystals for integrated optics

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