Cited by 288Photorefractive and Nonlinear OpticsFerroelectric and Piezoelectric MaterialsNonlinear Optical Materials Research

Tunable Ultraviolet Radiation by Second-Harmonic Generation in Periodically Poled Lithium Tantalate

Meyn, J.-P., Fejer, M. M.·1997·Optics Letters

Abstract

We describe electric-field poling of fine-pitch ferroelectric domain gratings in lithium tantalate and characterization of nonlinear-optical properties by single-pass quasi-phase-matched second-harmonic generation (QPM SHG). With a 7.5-microm-period grating, the observed effective nonlinear coefficient for first-order QPM SHG of 532-nm radiation is 9 pm/V, whereas for a grating with a 2.625-microm period, 2.6 pm/V was observed for second-order QPM SHG of 325-nm radiation. These values are 100% and 55% of the theoretically expected values, respectively. We derive a temperature-dependent Sellmeier equation for lithium tantalate that is valid deeper into the UV than currently available results, based on temperature-tuning experiments at different QPM grating periods combined with refractive-index data in the literature.

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Crossref · 10.1364/ol.22.001214

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13 of 13 references verified0 citation errors · 0 not checkable

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  • LiTaO3 shows enhanced chemical stability compared to LN by replacing Nb atoms with Ta atoms, and has a wider bandgap of 3.93 eV, facilitating nonlinear optical conversion in the visible and UV regions.

    “This material shows an enhanced chemical stability by simply replacing the Nb atoms with Ta atoms [184], as well as a wider bandgap (3.93 eV [185]), facilitating nonlinear optical conversion in the Vis and UV regions [186].”

    From Metal Oxide Thin Films for Advanced Photonic Applications (2026) · cites this paper as [186]

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Authors
Meyn, J.-P., & Fejer, M. M.
Affiliations
Stanford University (US)
Venue
Optics Letters
Published
1997-08-15
Volume
22
Issue
16
Pages
1214
ISSN
  • 0146-9592 (ISSN-L)
  • 1539-4794
OpenAlex
W2145271976
Cited by
288
References
13
Citations by year
2026: 2 · 2025: 5 · 2024: 10 · 2023: 9 · 2022: 6 · 2021: 5 · 2020: 6 · 2019: 7 · 2018: 2 · 2017: 13 · 2016: 5 · 2015: 3 · 2014: 6 · 2013: 9 · 2012: 11
FWCI
7.74
Type
journal article
Language
en
Open access
closed
Locations
  • Optics Letters (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Photorefractive and Nonlinear Optics
  • Physical Sciences › Materials Science › Materials Chemistry › Ferroelectric and Piezoelectric Materials
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Nonlinear Optical Materials Research
Keywords
second harmonic generation, periodically poled lithium tantalate, electric field poling, quasi-phase matching, ultraviolet radiation, nonlinear optical coefficients, Sellmeier equation, temperature dependence, refractive index, grating period

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