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Measurement of nonlinear refraction and absorption coefficient in BaGa2GeSe6 crystal. / Erushin, E. Y.; Boyko, A. A.; Shevyrdyaeva, G. S. et al.

In: Optical Materials, Vol. 154, 115745, 29.06.2024.

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Erushin EY, Boyko AA, Shevyrdyaeva GS, Badikov DV, Kostyukova NY. Measurement of nonlinear refraction and absorption coefficient in BaGa2GeSe6 crystal. Optical Materials. 2024 Jun 29;154:115745. doi: 10.1016/j.optmat.2024.115745

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@article{886e853e67ed4f27af1cd7b94c567238,
title = "Measurement of nonlinear refraction and absorption coefficient in BaGa2GeSe6 crystal",
abstract = "The coefficients of nonlinear absorption and nonlinear refraction of the quaternary barium chalcogenide crystal BaGa2GeSe6 at a wavelength corresponding to half the band gap, as well as their dependence on the pulse repetition rate and peak on-axis irradiance, were measured for the first time. The third-order nonlinear optical properties were studied using the single-beam Z-scan technique. An Nd: YLF laser at 1.053 μm with a pulse duration of approximately 5.2 ns was used as a radiation source. In addition, a thermal Z-scan was carried out to investigate thermal lensing in the BaGa2GeSe6 crystal, employing a continuous wave Nd: YAG laser at 1064 nm. These studies represent an important step in comprehending the nonlinear optical properties of barium chalcogenide crystals and their behavior at different pulse intensities. The results might be significant for the modelling and design of mid-infrared optical systems.",
keywords = "Barium chalcogenide crystals, Mid-infrared range, Nonlinear absorption (NLA), Nonlinear refraction (NLR), Thermal lensing, Z-scan",
author = "Erushin, {E. Y.} and Boyko, {A. A.} and Shevyrdyaeva, {G. S.} and Badikov, {D. V.} and Kostyukova, {N. Y.}",
note = "This work was supported by the Russian Science Foundation (Project no. 23-22-00368).",
year = "2024",
month = jun,
day = "29",
doi = "10.1016/j.optmat.2024.115745",
language = "English",
volume = "154",
journal = "Optical Materials",
issn = "0925-3467",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Measurement of nonlinear refraction and absorption coefficient in BaGa2GeSe6 crystal

AU - Erushin, E. Y.

AU - Boyko, A. A.

AU - Shevyrdyaeva, G. S.

AU - Badikov, D. V.

AU - Kostyukova, N. Y.

N1 - This work was supported by the Russian Science Foundation (Project no. 23-22-00368).

PY - 2024/6/29

Y1 - 2024/6/29

N2 - The coefficients of nonlinear absorption and nonlinear refraction of the quaternary barium chalcogenide crystal BaGa2GeSe6 at a wavelength corresponding to half the band gap, as well as their dependence on the pulse repetition rate and peak on-axis irradiance, were measured for the first time. The third-order nonlinear optical properties were studied using the single-beam Z-scan technique. An Nd: YLF laser at 1.053 μm with a pulse duration of approximately 5.2 ns was used as a radiation source. In addition, a thermal Z-scan was carried out to investigate thermal lensing in the BaGa2GeSe6 crystal, employing a continuous wave Nd: YAG laser at 1064 nm. These studies represent an important step in comprehending the nonlinear optical properties of barium chalcogenide crystals and their behavior at different pulse intensities. The results might be significant for the modelling and design of mid-infrared optical systems.

AB - The coefficients of nonlinear absorption and nonlinear refraction of the quaternary barium chalcogenide crystal BaGa2GeSe6 at a wavelength corresponding to half the band gap, as well as their dependence on the pulse repetition rate and peak on-axis irradiance, were measured for the first time. The third-order nonlinear optical properties were studied using the single-beam Z-scan technique. An Nd: YLF laser at 1.053 μm with a pulse duration of approximately 5.2 ns was used as a radiation source. In addition, a thermal Z-scan was carried out to investigate thermal lensing in the BaGa2GeSe6 crystal, employing a continuous wave Nd: YAG laser at 1064 nm. These studies represent an important step in comprehending the nonlinear optical properties of barium chalcogenide crystals and their behavior at different pulse intensities. The results might be significant for the modelling and design of mid-infrared optical systems.

KW - Barium chalcogenide crystals

KW - Mid-infrared range

KW - Nonlinear absorption (NLA)

KW - Nonlinear refraction (NLR)

KW - Thermal lensing

KW - Z-scan

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85197049840&origin=inward&txGid=013bde1737344252024cad725cc61075

UR - https://www.mendeley.com/catalogue/27dcb5ff-c4c0-3407-8f23-b2d454951ff5/

U2 - 10.1016/j.optmat.2024.115745

DO - 10.1016/j.optmat.2024.115745

M3 - Article

VL - 154

JO - Optical Materials

JF - Optical Materials

SN - 0925-3467

M1 - 115745

ER -

ID: 60830906