Checking the refractive index change in liquid photopolymerizable compositions

Alexander V. Volkov; Nikolay L. Kazanskiy; Vladimir S. Solovjev

doi:10.1117/12.454679

5 February 2002 Checking the refractive index change in liquid photopolymerizable compositions

Alexander V. Volkov, Nikolay L. Kazanskiy, Vladimir S. Solovjev

Proceedings Volume 4680, Second International Conference on Lasers for Measurement and Information Transfer; (2002) https://doi.org/10.1117/12.454679
Event: Second International Conference on Lasers for Measurement and Information Transfer, 2001, St. Petersburg, Russian Federation

Abstract

There is a technique for generating structures for continuous-profile diffractive optical elements (DOEs) using liquid photopolymerizable compositions (LPPC). Having in view obtaining a maximal microrelief height at a desired photomask contrast the energy exposure needs to ensure the maximal difference between the mass ratios of the exposure- generated polymer to the original oligomer (conversion) in the exposed and unexposed zones. Due to the fact that the refractive index of the polymer is higher than that of its own oligomer the refractive index will obviously be greater in places of higher conversion levels. Therefore, by fixing the difference between the refractive indexes in exposed and unexposed zones one can determine the microrelief height obtained as the result of dark growth.

Citation Download Citation

Alexander V. Volkov, Nikolay L. Kazanskiy, and Vladimir S. Solovjev "Checking the refractive index change in liquid photopolymerizable compositions", Proc. SPIE 4680, Second International Conference on Lasers for Measurement and Information Transfer, (5 February 2002); https://doi.org/10.1117/12.454679

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