Electro-optical properties of BaTiO3-SrTiO3 multilayer thin films for waveguide modulators

Jussi Hiltunen, Mikko Karppinen, Pentti Karioja, J. Lappalainen, J. Puustinen, V. Lantto, Harry L. Tuller

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

2 Citations (Scopus)

Abstract

Optical properties of ferroelectric BaTiO3 (BTO) and paraelectric SrTiO3 (STO) multilayer structures were investigated as a possible material choice for thin-film electro-optic devices. It has been demonstrated that dielectric properties can be enhanced by optimizing the stacking periodicity of BTO-STO superlattices, and in this work, it was studied how the shifts in permittivity are transferred to the optical properties. BTO-STO superlattices with stacking periodicity varying between 27 Å and 1670 Å were grown on MgO substrates by pulsed laser deposition. In X-ray diffraction patterns, periodic satellite peaks were observed indicating the formation artificial superlattices. The evolution of electro-optic response with varying stacking periodicity was analyzed by ellipsometric transmission method. The electro-optic response reached a maximum at a stacking periodicity of 105 Å corresponding the individual layer thickness of 13 unit cells. The suitability of superlattices, and also single layer BTO thin films, in planar optical devices were evaluated by fabricating and characterizing Mach-Zehnder waveguide modulators. (23 refs.)
Original languageEnglish
Title of host publicationSilicon Photonics and Photonic Integrated Circuits
PublisherInternational Society for Optics and Photonics SPIE
Pages69960H-1-8
DOIs
Publication statusPublished - 2008
MoE publication typeA4 Article in a conference publication
EventSPIE Photonics Europe 2008: Silicon Photonics and Photonic Integrated Circuits - Strasbourg, France
Duration: 7 Apr 200810 Apr 2008

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume69960

Conference

ConferenceSPIE Photonics Europe 2008
CountryFrance
CityStrasbourg
Period7/04/0810/04/08

Fingerprint

superlattices
modulators
periodic variations
electro-optics
waveguides
optical properties
thin films
laminates
pulsed laser deposition
dielectric properties
diffraction patterns
permittivity
shift
cells
x rays

Cite this

Hiltunen, J., Karppinen, M., Karioja, P., Lappalainen, J., Puustinen, J., Lantto, V., & Tuller, H. L. (2008). Electro-optical properties of BaTiO3-SrTiO3 multilayer thin films for waveguide modulators. In Silicon Photonics and Photonic Integrated Circuits (pp. 69960H-1-8). International Society for Optics and Photonics SPIE. Proceedings of SPIE, Vol.. 69960 https://doi.org/10.1117/12.781163
Hiltunen, Jussi ; Karppinen, Mikko ; Karioja, Pentti ; Lappalainen, J. ; Puustinen, J. ; Lantto, V. ; Tuller, Harry L. / Electro-optical properties of BaTiO3-SrTiO3 multilayer thin films for waveguide modulators. Silicon Photonics and Photonic Integrated Circuits. International Society for Optics and Photonics SPIE, 2008. pp. 69960H-1-8 (Proceedings of SPIE, Vol. 69960).
@inproceedings{f0952d23920140d0bcdfb39cbaba4112,
title = "Electro-optical properties of BaTiO3-SrTiO3 multilayer thin films for waveguide modulators",
abstract = "Optical properties of ferroelectric BaTiO3 (BTO) and paraelectric SrTiO3 (STO) multilayer structures were investigated as a possible material choice for thin-film electro-optic devices. It has been demonstrated that dielectric properties can be enhanced by optimizing the stacking periodicity of BTO-STO superlattices, and in this work, it was studied how the shifts in permittivity are transferred to the optical properties. BTO-STO superlattices with stacking periodicity varying between 27 {\AA} and 1670 {\AA} were grown on MgO substrates by pulsed laser deposition. In X-ray diffraction patterns, periodic satellite peaks were observed indicating the formation artificial superlattices. The evolution of electro-optic response with varying stacking periodicity was analyzed by ellipsometric transmission method. The electro-optic response reached a maximum at a stacking periodicity of 105 {\AA} corresponding the individual layer thickness of 13 unit cells. The suitability of superlattices, and also single layer BTO thin films, in planar optical devices were evaluated by fabricating and characterizing Mach-Zehnder waveguide modulators. (23 refs.)",
author = "Jussi Hiltunen and Mikko Karppinen and Pentti Karioja and J. Lappalainen and J. Puustinen and V. Lantto and Tuller, {Harry L.}",
year = "2008",
doi = "10.1117/12.781163",
language = "English",
series = "Proceedings of SPIE",
publisher = "International Society for Optics and Photonics SPIE",
pages = "69960H--1--8",
booktitle = "Silicon Photonics and Photonic Integrated Circuits",
address = "United States",

}

Hiltunen, J, Karppinen, M, Karioja, P, Lappalainen, J, Puustinen, J, Lantto, V & Tuller, HL 2008, Electro-optical properties of BaTiO3-SrTiO3 multilayer thin films for waveguide modulators. in Silicon Photonics and Photonic Integrated Circuits. International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 69960, pp. 69960H-1-8, SPIE Photonics Europe 2008, Strasbourg, France, 7/04/08. https://doi.org/10.1117/12.781163

Electro-optical properties of BaTiO3-SrTiO3 multilayer thin films for waveguide modulators. / Hiltunen, Jussi; Karppinen, Mikko; Karioja, Pentti; Lappalainen, J.; Puustinen, J.; Lantto, V.; Tuller, Harry L.

Silicon Photonics and Photonic Integrated Circuits. International Society for Optics and Photonics SPIE, 2008. p. 69960H-1-8 (Proceedings of SPIE, Vol. 69960).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - Electro-optical properties of BaTiO3-SrTiO3 multilayer thin films for waveguide modulators

AU - Hiltunen, Jussi

AU - Karppinen, Mikko

AU - Karioja, Pentti

AU - Lappalainen, J.

AU - Puustinen, J.

AU - Lantto, V.

AU - Tuller, Harry L.

PY - 2008

Y1 - 2008

N2 - Optical properties of ferroelectric BaTiO3 (BTO) and paraelectric SrTiO3 (STO) multilayer structures were investigated as a possible material choice for thin-film electro-optic devices. It has been demonstrated that dielectric properties can be enhanced by optimizing the stacking periodicity of BTO-STO superlattices, and in this work, it was studied how the shifts in permittivity are transferred to the optical properties. BTO-STO superlattices with stacking periodicity varying between 27 Å and 1670 Å were grown on MgO substrates by pulsed laser deposition. In X-ray diffraction patterns, periodic satellite peaks were observed indicating the formation artificial superlattices. The evolution of electro-optic response with varying stacking periodicity was analyzed by ellipsometric transmission method. The electro-optic response reached a maximum at a stacking periodicity of 105 Å corresponding the individual layer thickness of 13 unit cells. The suitability of superlattices, and also single layer BTO thin films, in planar optical devices were evaluated by fabricating and characterizing Mach-Zehnder waveguide modulators. (23 refs.)

AB - Optical properties of ferroelectric BaTiO3 (BTO) and paraelectric SrTiO3 (STO) multilayer structures were investigated as a possible material choice for thin-film electro-optic devices. It has been demonstrated that dielectric properties can be enhanced by optimizing the stacking periodicity of BTO-STO superlattices, and in this work, it was studied how the shifts in permittivity are transferred to the optical properties. BTO-STO superlattices with stacking periodicity varying between 27 Å and 1670 Å were grown on MgO substrates by pulsed laser deposition. In X-ray diffraction patterns, periodic satellite peaks were observed indicating the formation artificial superlattices. The evolution of electro-optic response with varying stacking periodicity was analyzed by ellipsometric transmission method. The electro-optic response reached a maximum at a stacking periodicity of 105 Å corresponding the individual layer thickness of 13 unit cells. The suitability of superlattices, and also single layer BTO thin films, in planar optical devices were evaluated by fabricating and characterizing Mach-Zehnder waveguide modulators. (23 refs.)

U2 - 10.1117/12.781163

DO - 10.1117/12.781163

M3 - Conference article in proceedings

T3 - Proceedings of SPIE

SP - 69960H-1-8

BT - Silicon Photonics and Photonic Integrated Circuits

PB - International Society for Optics and Photonics SPIE

ER -

Hiltunen J, Karppinen M, Karioja P, Lappalainen J, Puustinen J, Lantto V et al. Electro-optical properties of BaTiO3-SrTiO3 multilayer thin films for waveguide modulators. In Silicon Photonics and Photonic Integrated Circuits. International Society for Optics and Photonics SPIE. 2008. p. 69960H-1-8. (Proceedings of SPIE, Vol. 69960). https://doi.org/10.1117/12.781163