1. 1) S. Migura: Optics for EUV Lithography, 2019 EUVL Workshop. See https://www.euvlitho.com/2019/P24.pdf accessed in 2023.4.8.
2. 2) INTERNATIANL ROADMAP FOR DEVICE AND SYSTEMSTM 2022 UPDATE, MORE MOORE, IEEE, https://irds.ieee.org/images/files/pdf/2022/2022IRDS_MM.pdf accessed 2023/4/8.
3. 3) Canon Global,しくみと技術 FPD露光装置, https://global.canon/ja/technology/fpd2021s.html accessed 2023.7.18
4. 4) For example of homodyne interferometer, Renishaw XL-80, https://www.renishaw.jp/jp/xl-80-laser-system--8268 accessed 2023.4.8.
5. 5) For example of heterodyne interferometer, Keysight Technologies optics and Lase Heads for Laser-Interferometer Positioning System, See https://www.keysight.com/jp/ja/assets/7018-06711/technical-overviews/5964-6190.pdf accessed 2023.4.8.