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SWIR anti-reflective nanostructures on nonlinear crystals by direct UV femtosecond laser printing. / Syubaev, Sergey; Modin, Evgeny; Gurbatov, Stanislav et al.

In: Applied Physics Letters, Vol. 123, No. 6, 061108, 07.08.2023.

Research output: Contribution to journal › Article › peer-review

Harvard

Syubaev, S, Modin, E, Gurbatov, S, Cherepakhin, A, Dostovalov, A, Tarasova, A, Krinitsin, P, Yelisseyev, A, Isaenko, L & Kuchmizhak, A 2023, 'SWIR anti-reflective nanostructures on nonlinear crystals by direct UV femtosecond laser printing', Applied Physics Letters, vol. 123, no. 6, 061108. https://doi.org/10.1063/5.0159719

APA

Syubaev, S., Modin, E., Gurbatov, S., Cherepakhin, A., Dostovalov, A., Tarasova, A., Krinitsin, P., Yelisseyev, A., Isaenko, L., & Kuchmizhak, A. (2023). SWIR anti-reflective nanostructures on nonlinear crystals by direct UV femtosecond laser printing. Applied Physics Letters, 123(6), [061108]. https://doi.org/10.1063/5.0159719

Vancouver

Syubaev S, Modin E, Gurbatov S, Cherepakhin A, Dostovalov A, Tarasova A et al. SWIR anti-reflective nanostructures on nonlinear crystals by direct UV femtosecond laser printing. Applied Physics Letters. 2023 Aug 7;123(6):061108. doi: 10.1063/5.0159719

Author

Syubaev, Sergey ; Modin, Evgeny ; Gurbatov, Stanislav et al. / SWIR anti-reflective nanostructures on nonlinear crystals by direct UV femtosecond laser printing. In: Applied Physics Letters. 2023 ; Vol. 123, No. 6.

BibTeX

@article{a55881a8164d4d07a1278c7aba3e3ba9,
title = "SWIR anti-reflective nanostructures on nonlinear crystals by direct UV femtosecond laser printing",
abstract = "Nonlinear infrared (IR) crystals for radiation conversion are of paramount importance for realization of advanced laser spectrometers for medical diagnostics, environmental monitoring, and advanced sensing. However, performance of such crystals suffers from substantial surface reflectivity coming from rather high (over 2.5) refractive index of the key nonlinear materials used. Here, based on the example of promising BaGa4Se7 nonlinear crystal, we attested direct surface patterning with ultraviolet (257 nm) femtosecond laser pulses used to engrave anti-reflective microstructures (ARMs) directly on both output sides of the crystal. Imprinted surface nanotrenches arranged into a fish-net morphology with a periodicity down to 500 nm was found to increase transmittance of the crystals from 65% to 84% within a practically relevant shortwave IR spectral range. Formation of the ARMs with an optimized geometry is expected to weakly reduce the laser damage threshold of a pristine crystal material as it was also evidenced from supporting full-wave simulations and tests.",
author = "Sergey Syubaev and Evgeny Modin and Stanislav Gurbatov and Artem Cherepakhin and Alexandr Dostovalov and Aleksandra Tarasova and Pavel Krinitsin and Alexander Yelisseyev and Ludmila Isaenko and Aleksandr Kuchmizhak",
note = "The work was supported by the Russian Science Foundation (Grant No. 23-22-00190). Публикация для корректировки.",
year = "2023",
month = aug,
day = "7",
doi = "10.1063/5.0159719",
language = "English",
volume = "123",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics",
number = "6",

}

RIS

TY - JOUR

T1 - SWIR anti-reflective nanostructures on nonlinear crystals by direct UV femtosecond laser printing

AU - Syubaev, Sergey

AU - Modin, Evgeny

AU - Gurbatov, Stanislav

AU - Cherepakhin, Artem

AU - Dostovalov, Alexandr

AU - Tarasova, Aleksandra

AU - Krinitsin, Pavel

AU - Yelisseyev, Alexander

AU - Isaenko, Ludmila

AU - Kuchmizhak, Aleksandr

N1 - The work was supported by the Russian Science Foundation (Grant No. 23-22-00190). Публикация для корректировки.

PY - 2023/8/7

Y1 - 2023/8/7

N2 - Nonlinear infrared (IR) crystals for radiation conversion are of paramount importance for realization of advanced laser spectrometers for medical diagnostics, environmental monitoring, and advanced sensing. However, performance of such crystals suffers from substantial surface reflectivity coming from rather high (over 2.5) refractive index of the key nonlinear materials used. Here, based on the example of promising BaGa4Se7 nonlinear crystal, we attested direct surface patterning with ultraviolet (257 nm) femtosecond laser pulses used to engrave anti-reflective microstructures (ARMs) directly on both output sides of the crystal. Imprinted surface nanotrenches arranged into a fish-net morphology with a periodicity down to 500 nm was found to increase transmittance of the crystals from 65% to 84% within a practically relevant shortwave IR spectral range. Formation of the ARMs with an optimized geometry is expected to weakly reduce the laser damage threshold of a pristine crystal material as it was also evidenced from supporting full-wave simulations and tests.

AB - Nonlinear infrared (IR) crystals for radiation conversion are of paramount importance for realization of advanced laser spectrometers for medical diagnostics, environmental monitoring, and advanced sensing. However, performance of such crystals suffers from substantial surface reflectivity coming from rather high (over 2.5) refractive index of the key nonlinear materials used. Here, based on the example of promising BaGa4Se7 nonlinear crystal, we attested direct surface patterning with ultraviolet (257 nm) femtosecond laser pulses used to engrave anti-reflective microstructures (ARMs) directly on both output sides of the crystal. Imprinted surface nanotrenches arranged into a fish-net morphology with a periodicity down to 500 nm was found to increase transmittance of the crystals from 65% to 84% within a practically relevant shortwave IR spectral range. Formation of the ARMs with an optimized geometry is expected to weakly reduce the laser damage threshold of a pristine crystal material as it was also evidenced from supporting full-wave simulations and tests.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85168122824&origin=inward&txGid=5e430f1af8f85731024e770e3fe5ba4a

UR - https://www.mendeley.com/catalogue/36ff6501-b1ef-37ed-aedc-8486b9317083/

U2 - 10.1063/5.0159719

DO - 10.1063/5.0159719

M3 - Article

VL - 123

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 6

M1 - 061108

ER -

ID: 59264133