Photopolymerizable thiol-ene nanocomposite materials for holographic applications

Yasuo Tomita; Eiji Hata; Satoru Yasui; Ken Mitsube

doi:10.1117/12.886713

11 May 2011 Photopolymerizable thiol-ene nanocomposite materials for holographic applications

Yasuo Tomita, Eiji Hata, Satoru Yasui, Ken Mitsube

Proceedings Volume 8074, Holography: Advances and Modern Trends II; 80740F (2011) https://doi.org/10.1117/12.886713
Event: SPIE Optics + Optoelectronics, 2011, Prague, Czech Republic

Abstract

We describe an experimental investigation of the photopolymerization kinetics and volume holographic recording characteristics of silica nanoparticle-polymer nanocomposites using thiol-ene monomers capable of step-growth polymerization. We characterize the visible light curing kinetics of a thiol-ene monomer system consisting of secondary dithiol with high self-life stability and low odor and triene with rigid structure and high electron density by using real-time Fourier transform spectroscopy and photocalorimetry. In plane-wave volume holographic recording at a wavelength of 532 nm it is shown that while volume holograms recorded in the nanocomposites exhibit high transparency, their saturated refractive index modulation (Δn_sat) and material sensitivity (S) are as large as 1x10^-2 and 1615 cm/J, respectively. The polymerization shrinkage is reduced as low as 0.4% as a result of the late gelation in conversion. These values meet the acceptable values for holographic data storage media (i.e., 5x10^-3, 500 cm/J and 0.5% for Δn_sat, S and shrinkage, respectively). The improved thermal stability of volume holograms recorded in the nanocomposites is also confirmed experimentally.

Citation Download Citation

Yasuo Tomita, Eiji Hata, Satoru Yasui, and Ken Mitsube "Photopolymerizable thiol-ene nanocomposite materials for holographic applications", Proc. SPIE 8074, Holography: Advances and Modern Trends II, 80740F (11 May 2011); https://doi.org/10.1117/12.886713

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