Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens

Shaul Hanany; Scott Cray; Jan Düsing; Calvin Firth; Jürgen Koch; Kuniaki Konishi; Rex Lam; Tomotake Matsumura; Haruyuki Sakurai; Yuki Sakurai; Aritoki Suzuki; Ryota Takaku; Qi Wen; Alexander Wienke; Andrew Y. Yan

doi:10.1117/12.3019092

Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens

Shaul Hanany, Scott Cray, Jan Düsing, Calvin Firth, Jürgen Koch, Kuniaki Konishi, Rex Lam, Tomotake Matsumura, Haruyuki Sakurai, Yuki Sakurai, Aritoki Suzuki, Ryota Takaku, Qi Wen, Alexander Wienke, Andrew Y. Yan

Physics and Astronomy (Twin Cities)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We used laser ablation to fabricate sub-wavelength structure anti-reflection coating (SWS-ARC) on a 5 cm diameter alumina lens. With an aspect ratio of 2.5, the SWS-ARC are designed to give a broad-band low reflectance response between 110 and 290 GHz. SWS shape measurements give 303 µm pitch and total height between 750 and 790 µm height, matching or exceeding the aspect ratio design values. Millimeter-wave transmittance measurements in a band between 140 and 260 GHz show the increase in transmittance expected with the ARC when compared to finite element analysis electromagnetic simulations. To our knowledge, this is the first demonstration of SWS-ARC on an alumina lens, opening the path for implementing the technique for larger diameter lenses.

Original language	English (US)
Title of host publication	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII
Editors	Jonas Zmuidzinas, Jian-Rong Gao, Jian-Rong Gao
Publisher	SPIE
ISBN (Electronic)	9781510675278
DOIs	https://doi.org/10.1117/12.3019092
State	Published - 2024
Event	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII 2024 - Yokohama, Japan Duration: Jun 18 2024 → Jun 22 2024

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	13102
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII 2024
Country/Territory	Japan
City	Yokohama
Period	6/18/24 → 6/22/24

Bibliographical note

Publisher Copyright:
© 2024 SPIE.

Keywords

Alumina
Anti-Reflection Coating
Millimeter-Wave Optical Components
Sub-Wavelength Structures

Publisher link

10.1117/12.3019092

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Hanany, S., Cray, S., Düsing, J., Firth, C., Koch, J., Konishi, K., Lam, R., Matsumura, T., Sakurai, H., Sakurai, Y., Suzuki, A., Takaku, R., Wen, Q., Wienke, A., & Yan, A. Y. (2024). Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens. In J. Zmuidzinas, J.-R. Gao, & J.-R. Gao (Eds.), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII Article 131020E (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13102). SPIE. https://doi.org/10.1117/12.3019092

Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens. / Hanany, Shaul; Cray, Scott; Düsing, Jan et al.
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII. ed. / Jonas Zmuidzinas; Jian-Rong Gao; Jian-Rong Gao. SPIE, 2024. 131020E (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13102).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hanany, S, Cray, S, Düsing, J, Firth, C, Koch, J, Konishi, K, Lam, R, Matsumura, T, Sakurai, H, Sakurai, Y, Suzuki, A, Takaku, R, Wen, Q, Wienke, A & Yan, AY 2024, Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens. in J Zmuidzinas, J-R Gao & J-R Gao (eds), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII., 131020E, Proceedings of SPIE - The International Society for Optical Engineering, vol. 13102, SPIE, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII 2024, Yokohama, Japan, 6/18/24. https://doi.org/10.1117/12.3019092

Hanany S, Cray S, Düsing J, Firth C, Koch J, Konishi K et al. Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens. In Zmuidzinas J, Gao JR, Gao JR, editors, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII. SPIE. 2024. 131020E. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.3019092

Hanany, Shaul ; Cray, Scott ; Düsing, Jan et al. / Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens. Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII. editor / Jonas Zmuidzinas ; Jian-Rong Gao ; Jian-Rong Gao. SPIE, 2024. (Proceedings of SPIE - The International Society for Optical Engineering).

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doi = "10.1117/12.3019092",

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AU - Hanany, Shaul

AU - Cray, Scott

AU - Düsing, Jan

AU - Firth, Calvin

AU - Koch, Jürgen

AU - Konishi, Kuniaki

AU - Lam, Rex

AU - Matsumura, Tomotake

AU - Sakurai, Haruyuki

AU - Sakurai, Yuki

AU - Suzuki, Aritoki

AU - Takaku, Ryota

AU - Wen, Qi

AU - Wienke, Alexander

AU - Yan, Andrew Y.

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N2 - We used laser ablation to fabricate sub-wavelength structure anti-reflection coating (SWS-ARC) on a 5 cm diameter alumina lens. With an aspect ratio of 2.5, the SWS-ARC are designed to give a broad-band low reflectance response between 110 and 290 GHz. SWS shape measurements give 303 µm pitch and total height between 750 and 790 µm height, matching or exceeding the aspect ratio design values. Millimeter-wave transmittance measurements in a band between 140 and 260 GHz show the increase in transmittance expected with the ARC when compared to finite element analysis electromagnetic simulations. To our knowledge, this is the first demonstration of SWS-ARC on an alumina lens, opening the path for implementing the technique for larger diameter lenses.

AB - We used laser ablation to fabricate sub-wavelength structure anti-reflection coating (SWS-ARC) on a 5 cm diameter alumina lens. With an aspect ratio of 2.5, the SWS-ARC are designed to give a broad-band low reflectance response between 110 and 290 GHz. SWS shape measurements give 303 µm pitch and total height between 750 and 790 µm height, matching or exceeding the aspect ratio design values. Millimeter-wave transmittance measurements in a band between 140 and 260 GHz show the increase in transmittance expected with the ARC when compared to finite element analysis electromagnetic simulations. To our knowledge, this is the first demonstration of SWS-ARC on an alumina lens, opening the path for implementing the technique for larger diameter lenses.

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KW - Anti-Reflection Coating

KW - Millimeter-Wave Optical Components

KW - Sub-Wavelength Structures

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Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens

Abstract

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Bibliographical note

Keywords

Publisher link

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