Two-photon absorption in undoped LiTaO3 crystals

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

Результат исследования: Научные публикации в периодических изданияхстатья

6 Цитирования (Scopus)

Аннотация

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.

Язык оригиналаанглийский
Страницы (с-по)253-258
Число страниц6
ЖурналOptical Materials
Том78
DOI
СостояниеОпубликовано - 1 апр 2018

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