Two-photon absorption in undoped LiTaO3 crystals

I. Sh Steinberg; A. V. Kirpichnikov; V. V. Atuchin

doi:10.1016/j.optmat.2017.11.025

Two-photon absorption in undoped LiTaO₃ crystals

I. Sh Steinberg, A. V. Kirpichnikov, V. V. Atuchin

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Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

9 Цитирования (Scopus)

Аннотация

The two-photon absorption (TPA) coefficient is obtained for pure lithium tantalate (LT) crystals as a function of C_Li = 100% × Li₂O/(Li₂O + Ta₂O₅) ratio. Five LT samples with C_Li = 47.95, 48.38, 48.75, 49.6 and 50 mol % were selected. The open Z-scan method was carried out to measure TPA coefficients at λ = 400 nm using 90 fs pulses at the appropriate pulse intensity of I₀ = 3.5–4 GW/cm². The TPA coefficients in LT drastically increase with the Li content increase and they reach 3–4 cm/GW for the stoichiometric composition LiTaO₃. TPA exhibits its saturation behavior with the saturation intensity of 11 GW/cm².

Язык оригинала	английский
Страницы (с-по)	253-258
Число страниц	6
Журнал	Optical Materials
Том	78
DOI	https://doi.org/10.1016/j.optmat.2017.11.025
Состояние	Опубликовано - 1 апр. 2018

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10.1016/j.optmat.2017.11.025

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title = "Two-photon absorption in undoped LiTaO3 crystals",

abstract = "The two-photon absorption (TPA) coefficient is obtained for pure lithium tantalate (LT) crystals as a function of CLi = 100% × Li2O/(Li2O + Ta2O5) ratio. Five LT samples with CLi = 47.95, 48.38, 48.75, 49.6 and 50 mol % were selected. The open Z-scan method was carried out to measure TPA coefficients at λ = 400 nm using 90 fs pulses at the appropriate pulse intensity of I0 = 3.5–4 GW/cm2. The TPA coefficients in LT drastically increase with the Li content increase and they reach 3–4 cm/GW for the stoichiometric composition LiTaO3. TPA exhibits its saturation behavior with the saturation intensity of 11 GW/cm2.",

keywords = "Composition, Lithium tantalate, Two-photon absorption, Z-scan method, REFRACTIVE-INDEXES, LITHIUM TANTALATE CRYSTALS, OPTICAL-PROPERTIES, NONLINEAR REFRACTION, SINGLE-CRYSTALS, WAVE-GUIDES, ZERO-BIREFRINGENCE, NIOBATE CRYSTALS, 3-PHOTON ABSORPTION, IMPLANTED LINBO3",

author = "Steinberg, {I. Sh} and Kirpichnikov, {A. V.} and Atuchin, {V. V.}",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2018",

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day = "1",

doi = "10.1016/j.optmat.2017.11.025",

language = "English",

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TY - JOUR

T1 - Two-photon absorption in undoped LiTaO3 crystals

AU - Steinberg, I. Sh

AU - Kirpichnikov, A. V.

AU - Atuchin, V. V.

PY - 2018/4/1

Y1 - 2018/4/1

N2 - The two-photon absorption (TPA) coefficient is obtained for pure lithium tantalate (LT) crystals as a function of CLi = 100% × Li2O/(Li2O + Ta2O5) ratio. Five LT samples with CLi = 47.95, 48.38, 48.75, 49.6 and 50 mol % were selected. The open Z-scan method was carried out to measure TPA coefficients at λ = 400 nm using 90 fs pulses at the appropriate pulse intensity of I0 = 3.5–4 GW/cm2. The TPA coefficients in LT drastically increase with the Li content increase and they reach 3–4 cm/GW for the stoichiometric composition LiTaO3. TPA exhibits its saturation behavior with the saturation intensity of 11 GW/cm2.

AB - The two-photon absorption (TPA) coefficient is obtained for pure lithium tantalate (LT) crystals as a function of CLi = 100% × Li2O/(Li2O + Ta2O5) ratio. Five LT samples with CLi = 47.95, 48.38, 48.75, 49.6 and 50 mol % were selected. The open Z-scan method was carried out to measure TPA coefficients at λ = 400 nm using 90 fs pulses at the appropriate pulse intensity of I0 = 3.5–4 GW/cm2. The TPA coefficients in LT drastically increase with the Li content increase and they reach 3–4 cm/GW for the stoichiometric composition LiTaO3. TPA exhibits its saturation behavior with the saturation intensity of 11 GW/cm2.

KW - Composition

KW - Lithium tantalate

KW - Two-photon absorption

KW - Z-scan method

KW - REFRACTIVE-INDEXES

KW - LITHIUM TANTALATE CRYSTALS

KW - OPTICAL-PROPERTIES

KW - NONLINEAR REFRACTION

KW - SINGLE-CRYSTALS

KW - WAVE-GUIDES

KW - ZERO-BIREFRINGENCE

KW - NIOBATE CRYSTALS

KW - 3-PHOTON ABSORPTION

KW - IMPLANTED LINBO3

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U2 - 10.1016/j.optmat.2017.11.025

DO - 10.1016/j.optmat.2017.11.025

M3 - Article

AN - SCOPUS:85042190947

VL - 78

SP - 253

EP - 258

JO - Optical Materials

JF - Optical Materials

SN - 0925-3467