Fabrication of antireflection microstructures on the surface of GaSe crystal by single-pulse femtosecond laser ablation

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Fabrication of antireflection microstructures on the surface of GaSe crystal by single-pulse femtosecond laser ablation. / Bushunov, Andrey A.; Teslenko, Andrei A.; Tarabrin, Mikhail K. et al.

In: Optics Letters, Vol. 45, No. 21, 01.11.2020, p. 5994-5997.

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

BibTeX

@article{b4082831693443f8a4984a138c3974ea,

title = "Fabrication of antireflection microstructures on the surface of GaSe crystal by single-pulse femtosecond laser ablation",

abstract = "GaSe crystals are promising as nonlinear optical converters in the mid- and far-IR ranges. However, it is challenging to increase the GaSe surface transmittance of 77% with conventional antireflection coatings because of poor surface quality, leading to coating adhesion problems. Antireflection microstructures (ARMs) offer an alternative way of increasing surface transmittance. In this work, ARMs were fabricated on the surface of a GaSe plate by single-pulse femtosecond laser ablation. An average GaSe surface transmittance of 94% in the 7–11 µm range and a maximum transmittance of 97.8% at 8.5 µm were obtained. The proposed method can be used to increase the efficiency of GaSe-based nonlinear converters.",

keywords = "ABSORPTION, INDEX",

author = "Bushunov, {Andrey A.} and Teslenko, {Andrei A.} and Tarabrin, {Mikhail K.} and Lazarev, {Vladimir A.} and Isaenko, {Lyudmila I.} and Eliseev, {Alexander P.} and Lobanov, {Sergei I.}",

note = "Funding Information: Acknowledgment. The authors acknowledge the support of Russian Science Foundation (project 20-72-10027). Vladimir Lazarev is the 2018 OSA Ambassador. Andrey Bushunov, Andrei Teslenko, and Mikhail Tarabrin designed the fabrication method and experimental setup, fabricated ARM samples on GaSe, performed measurements of ARM transmittance with large aperture, and mostly contributed to Letter preparation. Vladimir Lazarev supervised the research project. Lyudmila Isaenko and Sergei Lobanov worked on GaSe crystal growth for experiment and sample preparation for ARM fabrication. Alexander Eliseev performed small aperture transmittance measurements of fabricated ARM samples",

year = "2020",

month = nov,

day = "1",

doi = "10.1364/OL.404515",

language = "English",

volume = "45",

pages = "5994--5997",

journal = "Optics Letters",

issn = "0146-9592",

publisher = "The Optical Society",

number = "21",

}

RIS

TY - JOUR

T1 - Fabrication of antireflection microstructures on the surface of GaSe crystal by single-pulse femtosecond laser ablation

AU - Bushunov, Andrey A.

AU - Teslenko, Andrei A.

AU - Tarabrin, Mikhail K.

AU - Lazarev, Vladimir A.

AU - Isaenko, Lyudmila I.

AU - Eliseev, Alexander P.

AU - Lobanov, Sergei I.

N1 - Funding Information: Acknowledgment. The authors acknowledge the support of Russian Science Foundation (project 20-72-10027). Vladimir Lazarev is the 2018 OSA Ambassador. Andrey Bushunov, Andrei Teslenko, and Mikhail Tarabrin designed the fabrication method and experimental setup, fabricated ARM samples on GaSe, performed measurements of ARM transmittance with large aperture, and mostly contributed to Letter preparation. Vladimir Lazarev supervised the research project. Lyudmila Isaenko and Sergei Lobanov worked on GaSe crystal growth for experiment and sample preparation for ARM fabrication. Alexander Eliseev performed small aperture transmittance measurements of fabricated ARM samples

PY - 2020/11/1

Y1 - 2020/11/1

N2 - GaSe crystals are promising as nonlinear optical converters in the mid- and far-IR ranges. However, it is challenging to increase the GaSe surface transmittance of 77% with conventional antireflection coatings because of poor surface quality, leading to coating adhesion problems. Antireflection microstructures (ARMs) offer an alternative way of increasing surface transmittance. In this work, ARMs were fabricated on the surface of a GaSe plate by single-pulse femtosecond laser ablation. An average GaSe surface transmittance of 94% in the 7–11 µm range and a maximum transmittance of 97.8% at 8.5 µm were obtained. The proposed method can be used to increase the efficiency of GaSe-based nonlinear converters.

AB - GaSe crystals are promising as nonlinear optical converters in the mid- and far-IR ranges. However, it is challenging to increase the GaSe surface transmittance of 77% with conventional antireflection coatings because of poor surface quality, leading to coating adhesion problems. Antireflection microstructures (ARMs) offer an alternative way of increasing surface transmittance. In this work, ARMs were fabricated on the surface of a GaSe plate by single-pulse femtosecond laser ablation. An average GaSe surface transmittance of 94% in the 7–11 µm range and a maximum transmittance of 97.8% at 8.5 µm were obtained. The proposed method can be used to increase the efficiency of GaSe-based nonlinear converters.

KW - ABSORPTION

KW - INDEX

UR - http://www.scopus.com/inward/record.url?scp=85095391906&partnerID=8YFLogxK

U2 - 10.1364/OL.404515

DO - 10.1364/OL.404515

M3 - Article

C2 - 33137052

AN - SCOPUS:85095391906

VL - 45

SP - 5994

EP - 5997

JO - Optics Letters

JF - Optics Letters

SN - 0146-9592

IS - 21

ER -

ID: 26152258