Poly(N-vinylcarbazole)-based low glass transition temperature three-component  photorefractive composites

Qihuang Gong; Zhijian Chen; Feng Wang; Yiwang Chen; Huiying Chen

doi:10.1117/12.318122

17 August 1998 Poly(N-vinylcarbazole)-based low glass transition temperature three-component photorefractive composites

Qihuang Gong, Zhijian Chen, Feng Wang, Yiwang Chen, Huiying Chen

Proceedings Volume 3554, Photorefractive Materials: Phenomena and Related Applications II; (1998) https://doi.org/10.1117/12.318122
Event: Photonics China '98, 1998, Beijing, China

Abstract

Three-component is a promising direction to overcome disadvantages (e.g., unstability and critical environment requirement) of the four-component low glass transition temperature photorefractive (PR) polymer composite which consists of photosensitizer, nonlinear optical (NLO) chromophore, charge transport agent, and the plasticizer separately. Based on the well-known hole photoconductive network of poly(N-vinylcarbazole):2,4,7-trinitro-9-fluorenone, in our presented investigations, several well-performanced three-component PR composites were developed for different application purposes with the optimal designing optical chromophore exhibit both NLO response and plasticizing property. Generally, it is expected that long chain alkoxy of the chromophore may increase the plasticizing property while long alkoxy chain makes itself more easy to curl, which might weaken the plasticizing function, thus an optimum selection ofthe length ofthe alkoxy exists. From the experimental observations of 2,5-dimethyl-4-(4'—nitrophenylazo)benzene with different length of the alkoxy, it was indicated that high coupling gain (—195 cm') and index grating amplitude (—.4.3x1O) were achieved at 633nm in the composite contain l-n-butoxyl-2,5-dimethyl-4-(4'_nitrophenylazo)benzene. Besides, different substituent groups make the chromophore inequal plasticizing and different electrooptic properties. For operating at short wavelength, 3,3-diacety1-4methoxylstyrene is the more suitable selection (with a coupling gain of—38cm' at 543 urn, which is higher than these at 593 nm, 612nm and 633 urn). Doped with f3,f-diacety1-4-methoxylstyrene, a response time as short as —17 ms at illumination intensity of 1 W/cm2 at the wavelength of 633 nm was estimated, which is the most fast response reported up to now and can be used in real-time optical information processing. On the other hand, all composites mentioned above have long lifetime and high stability

Key words: phtorefractive, polymer, three-component, grass transition temperature, coupling gain, real-time hologram

Citation Download Citation

Qihuang Gong, Zhijian Chen, Feng Wang, Yiwang Chen, and Huiying Chen "Poly(N-vinylcarbazole)-based low glass transition temperature three-component photorefractive composites", Proc. SPIE 3554, Photorefractive Materials: Phenomena and Related Applications II, (17 August 1998); https://doi.org/10.1117/12.318122

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Composites

Chromophores

Polymers

Diffraction

Nonlinear optics

Glasses

Electro optics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years