Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Antireflection microstructures fabricated on the surface of a LiGaSe 2 nonlinear crystal. / Teslenko, Andrei A.; Bushunov, Andrey A.; Isaenko, Lyudmila. I. и др.
в: Optics Letters, Том 48, № 5, 01.03.2023, стр. 1196-1199.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Antireflection microstructures fabricated on the surface of a LiGaSe 2 nonlinear crystal
AU - Teslenko, Andrei A.
AU - Bushunov, Andrey A.
AU - Isaenko, Lyudmila. I.
AU - Shklyaev, Alexander
AU - Goloshumova, Alina
AU - Lobanov, Sergei I.
AU - Lazarev, Vladimir A.
AU - Tarabrin, Mikhail K.
N1 - Acknowledgments. A.A. Bushunov, A.A. Teslenko, M.K. Tarabrin, L.I. Isaenko, and A.A. Goloshumova acknowledge the support of Russian Science Foundation (project 20-72-10027). Part of experiments was carried out using the equipment of the collective use centres “NANOSTRUKTURY” IFP SBRAN and “VTAN” (ATRC) of the NSU Physics Department Andrey Bushunov, Andrei Teslenko, and Mikhail Tarabrin designed the fabrication method and experimental setup, fabricated ARM samples on LiGaSe2, performed measurements of ARM transmittance, and mostly contributed to the Letter preparation. Lyudmila Isaenko, Alina Goloshumova and Sergei Lobanov worked on LiGaSe2 crystal growth for experiment and sample preparation for ARM fabrication. Alexander Shklyaev performed the EDX measurements of the sample. Mikhail Tarabrin and Vladimir Lazarev supervised the research project.
PY - 2023/3/1
Y1 - 2023/3/1
N2 - LiGaSe 2 is a propitious material for nonlinear parametric conversion in the mid-infrared (mid-IR) range. Its refractive index of n = 2.25 in the 2–12 µm wavelength range results in significant losses due to Fresnel reflection. However, the conventional method of increasing the transmittance with antireflection coatings (ARCs) significantly reduces the damage threshold of the material. Fabrication of the antireflection microstructures (ARMs) is an alternative approach for increasing the surface transmittance. In this work, ARMs were fabricated on the surface of a LiGaSe 2 crystal using a single-pulse femtosecond laser ablation method. An average transmittance of 97.2% in the 2–8 µm spectral range and the maximum transmittance of 98.6% at 4.1 µm were achieved.
AB - LiGaSe 2 is a propitious material for nonlinear parametric conversion in the mid-infrared (mid-IR) range. Its refractive index of n = 2.25 in the 2–12 µm wavelength range results in significant losses due to Fresnel reflection. However, the conventional method of increasing the transmittance with antireflection coatings (ARCs) significantly reduces the damage threshold of the material. Fabrication of the antireflection microstructures (ARMs) is an alternative approach for increasing the surface transmittance. In this work, ARMs were fabricated on the surface of a LiGaSe 2 crystal using a single-pulse femtosecond laser ablation method. An average transmittance of 97.2% in the 2–8 µm spectral range and the maximum transmittance of 98.6% at 4.1 µm were achieved.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85149124397&origin=inward&txGid=b4f4a5e65da9bd55b9e51d0469be30d8
UR - https://www.mendeley.com/catalogue/5725167b-75cf-35c2-891a-5b0c5e82a44f/
U2 - 10.1364/ol.480758
DO - 10.1364/ol.480758
M3 - Article
C2 - 36857247
VL - 48
SP - 1196
EP - 1199
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 5
ER -
ID: 59242521