Frequency conversion of a chirped Ti:sapphire laser pulse to 11.4 μm wavelength with SrMoO4 Raman shifter and LiGaS2 DFG crystal

Kinyaevskiy, I.O.; Koribut, A.V.; Seleznev, L.V.; Klimachev, Yu.M.; Dunaeva, E.E.; Ionin, A.A.

doi:10.1016/j.optlastec.2023.110035

Cited by 5 publications

(1 citation statement)

References 27 publications

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“…These compounds exhibit a relatively wide bandgap, ranging from 2.41 to 3.76 eV [44]. Among these materials, the LGS crystal has gained popularity due to its LIDT of 3.3 J/cm 2 (at 1.064 µm, 14 ns, 100 Hz) [45] and its compatibility with radiation sources emitting wavelengths below 1 µm, specifically Ti:sapphire laser systems operating at 800 nm for frequency down-conversion in femtosecond and picosecond regimes [46,47]. One method to enhance the properties of nonlinear crystals involves altering their chemical composition by passing from ternary to quaternary compounds [44].…”

Section: Introductionmentioning

confidence: 99%

Barium Chalcogenide Crystals: A Review

Kostyukova,

Erushin,

Boyko

et al. 2024

Photonics

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In recent decades, new nonlinear optical materials have been actively developed to create coherent tunable light sources in the mid-infrared (mid-IR) part of the spectrum used in a variety of scientific fields. In the present review, the main attention is focused on barium chalcogenide crystals, including their linear and nonlinear optical properties, laser-induced damage threshold (LIDT), and frequency down-conversion.

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Section: Introductionmentioning

confidence: 99%

Barium Chalcogenide Crystals: A Review

Kostyukova,

Erushin,

Boyko

et al. 2024

Photonics

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Frequency conversion of femtosecond Ti:Sapphire laser pulse into 5–11 μm wavelength range with ZnGeP2, AgGaS2 and LiGaS2crystals

Kinyaevskiy,

Koribut,

Grudtsyn

et al. 2025

Optics & Laser Technology

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Stimulated Raman scattering of a broadband chirped Ti:sapphire laser pulse in calcite seeded by a narrowband nanosecond Nd:YAG laser pulse

Kinyaevskiy,

Kovalev,

Koribut

et al. 2024

Journal of Applied Physics

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Stimulated Raman Scattering (SRS), pumped by a broadband (i.e., compared to the bandwidth of the material excitation) chirped 50-ps pulse, with Stokes seeding by a 20-ns narrowband pulse, is experimentally and theoretically investigated. In the experiments, a femtosecond-class 0.95 μm Ti:sapphire laser system and a Q-switched 1.064 μm Nd:YAG laser were used for pumping and seeding SRS in a calcite (CaCO3) crystal. This material was chosen because its Raman resonance frequency (∼1089 cm−1) is near to the frequency difference between the pump and seed radiation. It is shown that, despite a narrowband seed, the generated Stokes pulse spectrum mimics the pump pulse spectral width. The observed SRS conversion efficiency saturates at 40%, with a weak dependence on the seed pulse energy and on the detuning of the pump-seed frequency from the Raman resonance. Theoretical modeling confirms the observed effects and permits prediction of the characteristics of the investigated system as its parameters are varied.

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Frequency conversion of a chirped Ti:sapphire laser pulse to 11.4 μm wavelength with SrMoO4 Raman shifter and LiGaS2 DFG crystal

Cited by 5 publications

References 27 publications

Barium Chalcogenide Crystals: A Review

Barium Chalcogenide Crystals: A Review

Frequency conversion of femtosecond Ti:Sapphire laser pulse into 5–11 μm wavelength range with ZnGeP2, AgGaS2 and LiGaS2crystals

Stimulated Raman scattering of a broadband chirped Ti:sapphire laser pulse in calcite seeded by a narrowband nanosecond Nd:YAG laser pulse

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