Pump-probe study of E(TO) polaritons in Zn-doped LiNbO3

C. C. Lee, C. T. Chia, Y. M. Chang, M. L. Sun, M. L. Hu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Results of femtosecond pump-probe measurement of E(TO)-like polaritons in Zn-doped lithium niobate crystals are presented. The impulsive-stimulated-Raman-induced three delay-time oscillations, ω 1, ω2 and ω3, are found and assigned to the linear combinations of three lowest E(TO)-like polaritons, ν1, ν2, and ν3, which are ω 1 = ν2 - ν1, ω2 = ν3 - ν1 and ω3 = 2ν 1. The obtained frequencies of ω1, ω 2 and ω3 are well explained by dielectric dispersion calculation. The lifetimes of these oscillations induced by the electro optical effect are also deduced, and they are strongly correlated with the Raman lineshape of E(TO) phonons. Our results also imply that the vibrations of E(TO1) and E(TO2) are mainly attributed to the Nb and O atomic motions, while the vibration of E(TO3) is dominated by the defect structure.

Original languageEnglish
Pages (from-to)6829-6833
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume43
Issue number9 B
DOIs
Publication statusPublished - 2004 Sep

Fingerprint

Defect structures
Electrooptical effects
Phonons
polaritons
Time delay
Lithium
Permittivity
Pumps
pumps
electro-optical effect
vibration
oscillations
Crystals
probes
lithium niobates
phonons
time lag
life (durability)
defects
crystals

Keywords

  • Dephasing time
  • E(TO) phonon
  • Lithium niobate
  • Polariton
  • Raman
  • Zn doped

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Pump-probe study of E(TO) polaritons in Zn-doped LiNbO3. / Lee, C. C.; Chia, C. T.; Chang, Y. M.; Sun, M. L.; Hu, M. L.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 43, No. 9 B, 09.2004, p. 6829-6833.

Research output: Contribution to journalArticle

@article{bc36aaa1eadc4033acdcecb2a9d31288,
title = "Pump-probe study of E(TO) polaritons in Zn-doped LiNbO3",
abstract = "Results of femtosecond pump-probe measurement of E(TO)-like polaritons in Zn-doped lithium niobate crystals are presented. The impulsive-stimulated-Raman-induced three delay-time oscillations, ω 1, ω2 and ω3, are found and assigned to the linear combinations of three lowest E(TO)-like polaritons, ν1, ν2, and ν3, which are ω 1 = ν2 - ν1, ω2 = ν3 - ν1 and ω3 = 2ν 1. The obtained frequencies of ω1, ω 2 and ω3 are well explained by dielectric dispersion calculation. The lifetimes of these oscillations induced by the electro optical effect are also deduced, and they are strongly correlated with the Raman lineshape of E(TO) phonons. Our results also imply that the vibrations of E(TO1) and E(TO2) are mainly attributed to the Nb and O atomic motions, while the vibration of E(TO3) is dominated by the defect structure.",
keywords = "Dephasing time, E(TO) phonon, Lithium niobate, Polariton, Raman, Zn doped",
author = "Lee, {C. C.} and Chia, {C. T.} and Chang, {Y. M.} and Sun, {M. L.} and Hu, {M. L.}",
year = "2004",
month = "9",
doi = "10.1143/JJAP.43.6829",
language = "English",
volume = "43",
pages = "6829--6833",
journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
issn = "0021-4922",
publisher = "Japan Society of Applied Physics",
number = "9 B",

}

TY - JOUR

T1 - Pump-probe study of E(TO) polaritons in Zn-doped LiNbO3

AU - Lee, C. C.

AU - Chia, C. T.

AU - Chang, Y. M.

AU - Sun, M. L.

AU - Hu, M. L.

PY - 2004/9

Y1 - 2004/9

N2 - Results of femtosecond pump-probe measurement of E(TO)-like polaritons in Zn-doped lithium niobate crystals are presented. The impulsive-stimulated-Raman-induced three delay-time oscillations, ω 1, ω2 and ω3, are found and assigned to the linear combinations of three lowest E(TO)-like polaritons, ν1, ν2, and ν3, which are ω 1 = ν2 - ν1, ω2 = ν3 - ν1 and ω3 = 2ν 1. The obtained frequencies of ω1, ω 2 and ω3 are well explained by dielectric dispersion calculation. The lifetimes of these oscillations induced by the electro optical effect are also deduced, and they are strongly correlated with the Raman lineshape of E(TO) phonons. Our results also imply that the vibrations of E(TO1) and E(TO2) are mainly attributed to the Nb and O atomic motions, while the vibration of E(TO3) is dominated by the defect structure.

AB - Results of femtosecond pump-probe measurement of E(TO)-like polaritons in Zn-doped lithium niobate crystals are presented. The impulsive-stimulated-Raman-induced three delay-time oscillations, ω 1, ω2 and ω3, are found and assigned to the linear combinations of three lowest E(TO)-like polaritons, ν1, ν2, and ν3, which are ω 1 = ν2 - ν1, ω2 = ν3 - ν1 and ω3 = 2ν 1. The obtained frequencies of ω1, ω 2 and ω3 are well explained by dielectric dispersion calculation. The lifetimes of these oscillations induced by the electro optical effect are also deduced, and they are strongly correlated with the Raman lineshape of E(TO) phonons. Our results also imply that the vibrations of E(TO1) and E(TO2) are mainly attributed to the Nb and O atomic motions, while the vibration of E(TO3) is dominated by the defect structure.

KW - Dephasing time

KW - E(TO) phonon

KW - Lithium niobate

KW - Polariton

KW - Raman

KW - Zn doped

UR - http://www.scopus.com/inward/record.url?scp=10444286584&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=10444286584&partnerID=8YFLogxK

U2 - 10.1143/JJAP.43.6829

DO - 10.1143/JJAP.43.6829

M3 - Article

AN - SCOPUS:10444286584

VL - 43

SP - 6829

EP - 6833

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 9 B

ER -