Theoretical evaluation of LiGaO2 for frequency upconversion to ultraviolet

Sergey Rashkeev, Sukit Limpijumnong, Walter R L Lambrecht

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

First-principles calculations of the frequency-dependent birefringence, second-harmonic generation, and linear electro-optic response are reported for LiGaO2 (which is transparent to as small as 222 nm). Good agreement is obtained with available experimental data in the visible region of the spectrum. The calculated frequency-dependent nonlinear optical responses are surprisingly constant in the entire energy region below the gap and small in absolute value (of the order of 0.2-1.2 pm/V for the various structures considered). Although the birefringence is insufficient for second-harmonic generation into the ultraviolet, opportunities may exist for sum-frequency generation. Angular phase-matching tuning curves are provided. The reasons for the low values of χ(2) are discussed. It is found to be not very sensitive to the structure and to arise in part from a large degree of cancellation between pure interband and mixed intra- and interband contributions.

Original languageEnglish
Pages (from-to)2217-2222
Number of pages6
JournalJournal of the Optical Society of America B: Optical Physics
Volume16
Issue number12
Publication statusPublished - 1 Dec 1999
Externally publishedYes

Fingerprint

birefringence
evaluation
harmonic generations
phase matching
cancellation
electro-optics
tuning
curves
energy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Theoretical evaluation of LiGaO2 for frequency upconversion to ultraviolet. / Rashkeev, Sergey; Limpijumnong, Sukit; Lambrecht, Walter R L.

In: Journal of the Optical Society of America B: Optical Physics, Vol. 16, No. 12, 01.12.1999, p. 2217-2222.

Research output: Contribution to journalArticle

@article{bcd6c10d70d74c83b8e1be3bd63395da,
title = "Theoretical evaluation of LiGaO2 for frequency upconversion to ultraviolet",
abstract = "First-principles calculations of the frequency-dependent birefringence, second-harmonic generation, and linear electro-optic response are reported for LiGaO2 (which is transparent to as small as 222 nm). Good agreement is obtained with available experimental data in the visible region of the spectrum. The calculated frequency-dependent nonlinear optical responses are surprisingly constant in the entire energy region below the gap and small in absolute value (of the order of 0.2-1.2 pm/V for the various structures considered). Although the birefringence is insufficient for second-harmonic generation into the ultraviolet, opportunities may exist for sum-frequency generation. Angular phase-matching tuning curves are provided. The reasons for the low values of χ(2) are discussed. It is found to be not very sensitive to the structure and to arise in part from a large degree of cancellation between pure interband and mixed intra- and interband contributions.",
author = "Sergey Rashkeev and Sukit Limpijumnong and Lambrecht, {Walter R L}",
year = "1999",
month = "12",
day = "1",
language = "English",
volume = "16",
pages = "2217--2222",
journal = "Journal of the Optical Society of America B: Optical Physics",
issn = "0740-3224",
publisher = "The Optical Society",
number = "12",

}

TY - JOUR

T1 - Theoretical evaluation of LiGaO2 for frequency upconversion to ultraviolet

AU - Rashkeev, Sergey

AU - Limpijumnong, Sukit

AU - Lambrecht, Walter R L

PY - 1999/12/1

Y1 - 1999/12/1

N2 - First-principles calculations of the frequency-dependent birefringence, second-harmonic generation, and linear electro-optic response are reported for LiGaO2 (which is transparent to as small as 222 nm). Good agreement is obtained with available experimental data in the visible region of the spectrum. The calculated frequency-dependent nonlinear optical responses are surprisingly constant in the entire energy region below the gap and small in absolute value (of the order of 0.2-1.2 pm/V for the various structures considered). Although the birefringence is insufficient for second-harmonic generation into the ultraviolet, opportunities may exist for sum-frequency generation. Angular phase-matching tuning curves are provided. The reasons for the low values of χ(2) are discussed. It is found to be not very sensitive to the structure and to arise in part from a large degree of cancellation between pure interband and mixed intra- and interband contributions.

AB - First-principles calculations of the frequency-dependent birefringence, second-harmonic generation, and linear electro-optic response are reported for LiGaO2 (which is transparent to as small as 222 nm). Good agreement is obtained with available experimental data in the visible region of the spectrum. The calculated frequency-dependent nonlinear optical responses are surprisingly constant in the entire energy region below the gap and small in absolute value (of the order of 0.2-1.2 pm/V for the various structures considered). Although the birefringence is insufficient for second-harmonic generation into the ultraviolet, opportunities may exist for sum-frequency generation. Angular phase-matching tuning curves are provided. The reasons for the low values of χ(2) are discussed. It is found to be not very sensitive to the structure and to arise in part from a large degree of cancellation between pure interband and mixed intra- and interband contributions.

UR - http://www.scopus.com/inward/record.url?scp=0004237578&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0004237578&partnerID=8YFLogxK

M3 - Article

VL - 16

SP - 2217

EP - 2222

JO - Journal of the Optical Society of America B: Optical Physics

JF - Journal of the Optical Society of America B: Optical Physics

SN - 0740-3224

IS - 12

ER -