Characteristics of initial tool influence function on cordierite substrates

Jiwoo Lee; Jeong-Yeol Han; Myung Cho; Kevin Ho; Shinobu Nagata; Hidehito Himeno; Masatsugu Kamiura

doi:10.1117/12.3020612

23 August 2024 Characteristics of initial tool influence function on cordierite substrates

Jiwoo Lee, Jeong-Yeol Han, Myung Cho, Kevin Ho, Shinobu Nagata, Hidehito Himeno, Masatsugu Kamiura

Proceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 130923W (2024) https://doi.org/10.1117/12.3020612
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Cordierite materials can be used as a reflected optical surface for astronomical space and ground-based telescope due to their high rigidity and low CTE(Coefficient of Thermal Expansion) which is ±1.94×10⁻⁸ m/°C. Using Cordierite materials in astronomical telescopes requires polishing techniques to control quantitatively. Therefore, it is essential to study the material removal properties using Tool Influence Function (TIF), which plays an important role in improving optical performance. In this paper, we introduce the characteristics of the initial Tool Influence Function (TIF) on Cordierite and SiC substrates. As a result, a material removal coefficient of 22.38 was obtained for Cordierite, while SiC achieved a coefficient of 6.01. Additionally, the repeatability was 95.73% ± 1.98 for Cordierite and 89.74% ± 4.39 for SiC.

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

Citation Download Citation

Jiwoo Lee, Jeong-Yeol Han, Myung Cho, Kevin Ho, Shinobu Nagata, Hidehito Himeno, and Masatsugu Kamiura "Characteristics of initial tool influence function on cordierite substrates", Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 130923W (23 August 2024); https://doi.org/10.1117/12.3020612

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