Development of a reflective spiral phase plate based on MRF polishing

Min-Woo Jeon; Sang-Won Hyun; Seok-Kyeong Jeong; Jong-Gyun Kang; Woo-Jong Yeo; Geon-Hee Kim

doi:10.1117/12.2536573

15 November 2019 Development of a reflective spiral phase plate based on MRF polishing

Min-Woo Jeon, Sang-Won Hyun, Seok-Kyeong Jeong, Jong-Gyun Kang, Woo-Jong Yeo, Geon-Hee Kim

Proceedings Volume 11175, Optifab 2019; 1117526 (2019) https://doi.org/10.1117/12.2536573
Event: SPIE Optifab, 2019, Rochester, New York, United States

Abstract

In this paper, we propose a fabrication process based on Magneto-Rheological Finishing (MRF) for a reflective Spiral Phase Plate (SPP) with a continuous surface. The front surface of a nickel-plated aluminum disk is machined by diamond turning as a plane mirror, and spiral structure with low topological charge is generated by sub-aperture polishing tools, i.e., MRF. Interferometers are used to analyze the smoothness of the spiral structure, steepness of the center step and surface roughness of the random areas for the fabricated SPP. The results indicate that the direct-polishing approach can be a promising technique to fabricate high-precision SPPs.

Citation Download Citation

Min-Woo Jeon, Sang-Won Hyun, Seok-Kyeong Jeong, Jong-Gyun Kang, Woo-Jong Yeo, and Geon-Hee Kim "Development of a reflective spiral phase plate based on MRF polishing", Proc. SPIE 11175, Optifab 2019, 1117526 (15 November 2019); https://doi.org/10.1117/12.2536573

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