Electromagnetic shielding design and thin film preparation of large-aperture Ge infrared window

Yike Sun; Zhong Li; Tianxing Zhang; Xu Xu

doi:10.1117/12.3047962

13 November 2024 Electromagnetic shielding design and thin film preparation of large-aperture Ge infrared window

Yike Sun, Zhong Li, Tianxing Zhang, Xu Xu

Author Affiliations +

Proceedings Volume 13280, Advanced Optical Manufacturing Technologies and Applications 2024; and Fourth International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2024); 132800Y (2024) https://doi.org/10.1117/12.3047962
Event: Second Conference on Advanced Optical Manufacturing Technologies and Applications & Fourth Forum of Young Scientists on Advanced Optical Manufacturing, 2024, Xi'an, China

Abstract

The relationship between the diffraction distribution of random metal mesh mesh and the linewidth of the mesh was analyzed by theoretical calculation and FDTD Solutions software simulation. A random-structure metal mesh electromagnetic shielding film with a line width of 5 μm was prepared on a large-aperture germanium optical window by mask vacuum lithography and electron beam evaporation coating technology, and then the infrared dual-band anti-reflection coating and DLC protective film were coated by electron beam evaporation and PECVD on the germanium window, respectively. Furthermore, the transmittance in the infrared band and electromagnetic shielding effectiveness in the microwave band of the window were characterized. The results show that the windows coated with random-structure metal meshs, anti-reflection coatings and DLC films have excellent electromagnetic shielding effectiveness in the frequency range of 1GHz~18GHz, and have high transmittance in the 3.5μm~4.5μm and 7.5μm~9.5μm bands.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yike Sun, Zhong Li, Tianxing Zhang, and Xu Xu "Electromagnetic shielding design and thin film preparation of large-aperture Ge infrared window", Proc. SPIE 13280, Advanced Optical Manufacturing Technologies and Applications 2024; and Fourth International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2024), 132800Y (13 November 2024); https://doi.org/10.1117/12.3047962

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Metals

Windows

Electromagnetism

Diffraction

Infrared radiation

Germanium

Infrared imaging

Show All Keywords

Keywords/Phrases

Search In:

Publication Years