Broadband characterization of congruent lithium niobate from mHz to optical frequencies

Charlotte Cochard; Thiemo Spielmann; Naoufal Bahlawane; Alexei Halpin; Torsten Granzow

doi:10.1088/1361-6463/aa80b8

Broadband characterization of congruent lithium niobate from mHz to optical frequencies

Charlotte Cochard (Lead / Corresponding author)
, Thiemo Spielmann
, Naoufal Bahlawane
, Alexei Halpin
, Torsten Granzow

Mechanical and Industrial Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Lithium niobate (LiNbO₃) is a well known uniaxial ferroelectric material. Using impedance measurement, quasi-optical free-space characterization, THz time domain spectroscopy (THz-TDS) and ellipsometry, its dielectric permittivity/refractive index was characterized depending on the crystal orientation over a broad frequency range: 1 mHz to 1 PHz ( nm). Three different frequency ranges, separated by well identified resonances, are observed: low frequency 'free-piezoelectric' response, intermediate frequency 'clamped-ionic' response and high frequency 'electronic' response. These features are discussed with an emphasis on the role of the crystallographic structure and piezoelectric response.

Original language	English
Article number	36LT01
Journal	Journal of Physics D: Applied Physics
Volume	50
Issue number	36
Early online date	25 Jul 2017
DOIs	https://doi.org/10.1088/1361-6463/aa80b8
Publication status	Published - 17 Aug 2017

Keywords

birefringence
dielectric dispersion
lithium niobate

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

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10.1088/1361-6463/aa80b8

Cite this

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abstract = "Lithium niobate (LiNbO3) is a well known uniaxial ferroelectric material. Using impedance measurement, quasi-optical free-space characterization, THz time domain spectroscopy (THz-TDS) and ellipsometry, its dielectric permittivity/refractive index was characterized depending on the crystal orientation over a broad frequency range: 1 mHz to 1 PHz ( nm). Three different frequency ranges, separated by well identified resonances, are observed: low frequency 'free-piezoelectric' response, intermediate frequency 'clamped-ionic' response and high frequency 'electronic' response. These features are discussed with an emphasis on the role of the crystallographic structure and piezoelectric response.",

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T1 - Broadband characterization of congruent lithium niobate from mHz to optical frequencies

AU - Cochard, Charlotte

AU - Spielmann, Thiemo

AU - Bahlawane, Naoufal

AU - Halpin, Alexei

AU - Granzow, Torsten

PY - 2017/8/17

Y1 - 2017/8/17

N2 - Lithium niobate (LiNbO3) is a well known uniaxial ferroelectric material. Using impedance measurement, quasi-optical free-space characterization, THz time domain spectroscopy (THz-TDS) and ellipsometry, its dielectric permittivity/refractive index was characterized depending on the crystal orientation over a broad frequency range: 1 mHz to 1 PHz ( nm). Three different frequency ranges, separated by well identified resonances, are observed: low frequency 'free-piezoelectric' response, intermediate frequency 'clamped-ionic' response and high frequency 'electronic' response. These features are discussed with an emphasis on the role of the crystallographic structure and piezoelectric response.

AB - Lithium niobate (LiNbO3) is a well known uniaxial ferroelectric material. Using impedance measurement, quasi-optical free-space characterization, THz time domain spectroscopy (THz-TDS) and ellipsometry, its dielectric permittivity/refractive index was characterized depending on the crystal orientation over a broad frequency range: 1 mHz to 1 PHz ( nm). Three different frequency ranges, separated by well identified resonances, are observed: low frequency 'free-piezoelectric' response, intermediate frequency 'clamped-ionic' response and high frequency 'electronic' response. These features are discussed with an emphasis on the role of the crystallographic structure and piezoelectric response.

KW - birefringence

KW - dielectric dispersion

KW - lithium niobate

UR - https://www.scopus.com/pages/publications/85028389499

U2 - 10.1088/1361-6463/aa80b8

DO - 10.1088/1361-6463/aa80b8

M3 - Article

AN - SCOPUS:85028389499

SN - 0022-3727

VL - 50

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

IS - 36

M1 - 36LT01

ER -

Broadband characterization of congruent lithium niobate from mHz to optical frequencies

Abstract

Keywords

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