Broadband characterization of LiNbO3: Influence of Mg doping

Charlotte Cochard; Thiemo Spielmann; Alexei Halpin; Torsten Granzow

doi:10.1109/IRMMW-THz.2017.8066974

Broadband characterization of LiNbO₃: Influence of Mg doping

Charlotte Cochard, Thiemo Spielmann, Alexei Halpin, Torsten Granzow

Mechanical and Industrial Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Optical damage of congruent lithium niobate (LiNbO₃) is a long-known problem. A popular method to limit this damage is doping LN with magnesium. Here, the dielectric permittivity of pure and magnesium-doped lithium niobate was characterized depending on the crystal orientation over a broad frequency range: 1 mHz to 0.75 PHz (λ=300 nm), using impedance measurements, quasi-optical free-space characterization, THz time domain spectroscopy (THz-TDS) and ellipsometry. Three different frequency ranges, separated by well identified resonances, are observed: low frequency 'piezoelectric' response, intermediate frequency 'ionic' response and high frequency 'electronic' response. Doping with magnesium influences neither the electronic nor the piezoelectric contribution to the dielectric permittivity, whereas the ionic contributions is strongly affected due to the changes in the defect structure.

Original language	English
Title of host publication	2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017
Publisher	IEEE
Number of pages	2
ISBN (Electronic)	9781509060504, 9781509060498
ISBN (Print)	9781509060511
DOIs	https://doi.org/10.1109/IRMMW-THz.2017.8066974
Publication status	Published - 16 Oct 2017
Event	42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017 - Cancun, Quintana Roo, Mexico Duration: 27 Aug 2017 → 1 Sept 2017

Publication series

Name
ISSN (Print)	2162-2027
ISSN (Electronic)	2162-2035

Conference

Conference	42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017
Country/Territory	Mexico
City	Cancun, Quintana Roo
Period	27/08/17 → 1/09/17

Keywords

Dielectrics
Doping
Permittivity
Lithium niobate
Resonant frequency
Optical filters
Magnesium

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1109/IRMMW-THz.2017.8066974

Cite this

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title = "Broadband characterization of LiNbO3: Influence of Mg doping",

abstract = "Optical damage of congruent lithium niobate (LiNbO3) is a long-known problem. A popular method to limit this damage is doping LN with magnesium. Here, the dielectric permittivity of pure and magnesium-doped lithium niobate was characterized depending on the crystal orientation over a broad frequency range: 1 mHz to 0.75 PHz (λ=300 nm), using impedance measurements, quasi-optical free-space characterization, THz time domain spectroscopy (THz-TDS) and ellipsometry. Three different frequency ranges, separated by well identified resonances, are observed: low frequency 'piezoelectric' response, intermediate frequency 'ionic' response and high frequency 'electronic' response. Doping with magnesium influences neither the electronic nor the piezoelectric contribution to the dielectric permittivity, whereas the ionic contributions is strongly affected due to the changes in the defect structure.",

keywords = "Dielectrics, Doping, Permittivity, Lithium niobate, Resonant frequency, Optical filters, Magnesium",

author = "Charlotte Cochard and Thiemo Spielmann and Alexei Halpin and Torsten Granzow",

year = "2017",

month = oct,

day = "16",

doi = "10.1109/IRMMW-THz.2017.8066974",

language = "English",

isbn = "9781509060511",

publisher = "IEEE",

booktitle = "2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017",

note = "42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017 ; Conference date: 27-08-2017 Through 01-09-2017",

}

Cochard, C, Spielmann, T, Halpin, A & Granzow, T 2017, Broadband characterization of LiNbO₃: Influence of Mg doping. in 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017., 8066974, IEEE, 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017, Cancun, Quintana Roo, Mexico, 27/08/17. https://doi.org/10.1109/IRMMW-THz.2017.8066974

TY - GEN

T1 - Broadband characterization of LiNbO3

T2 - 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017

AU - Cochard, Charlotte

AU - Spielmann, Thiemo

AU - Halpin, Alexei

AU - Granzow, Torsten

PY - 2017/10/16

Y1 - 2017/10/16

N2 - Optical damage of congruent lithium niobate (LiNbO3) is a long-known problem. A popular method to limit this damage is doping LN with magnesium. Here, the dielectric permittivity of pure and magnesium-doped lithium niobate was characterized depending on the crystal orientation over a broad frequency range: 1 mHz to 0.75 PHz (λ=300 nm), using impedance measurements, quasi-optical free-space characterization, THz time domain spectroscopy (THz-TDS) and ellipsometry. Three different frequency ranges, separated by well identified resonances, are observed: low frequency 'piezoelectric' response, intermediate frequency 'ionic' response and high frequency 'electronic' response. Doping with magnesium influences neither the electronic nor the piezoelectric contribution to the dielectric permittivity, whereas the ionic contributions is strongly affected due to the changes in the defect structure.

AB - Optical damage of congruent lithium niobate (LiNbO3) is a long-known problem. A popular method to limit this damage is doping LN with magnesium. Here, the dielectric permittivity of pure and magnesium-doped lithium niobate was characterized depending on the crystal orientation over a broad frequency range: 1 mHz to 0.75 PHz (λ=300 nm), using impedance measurements, quasi-optical free-space characterization, THz time domain spectroscopy (THz-TDS) and ellipsometry. Three different frequency ranges, separated by well identified resonances, are observed: low frequency 'piezoelectric' response, intermediate frequency 'ionic' response and high frequency 'electronic' response. Doping with magnesium influences neither the electronic nor the piezoelectric contribution to the dielectric permittivity, whereas the ionic contributions is strongly affected due to the changes in the defect structure.

KW - Dielectrics

KW - Doping

KW - Permittivity

KW - Lithium niobate

KW - Resonant frequency

KW - Optical filters

KW - Magnesium

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DO - 10.1109/IRMMW-THz.2017.8066974

M3 - Conference contribution

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SN - 9781509060511

BT - 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017

PB - IEEE

Y2 - 27 August 2017 through 1 September 2017

ER -