Organically modified silicates that exhibit non-linear optical properties by the sol-gel technique
Conference
·
OSTI ID:141659
- Polytechnic Univ., Brooklyn, NY (United States)
- Univ. of Massachusetts, Lowell, MA (United States)
Organically modified silanes functionalized with the 4-aminostilbazolium [(RO){sub 3}Si(CH{sub 2}){sub 3}OCH{sub 2}CH(OH)CH{sub 2}NH-C{sub 6}H{sub 4}-CH=CH-C{sub 5}H{sub 4}N{sup +}-(CH{sub 2}){sub 3}Si(OR){sub 3}]Br{sup {minus}} and the 4-nitroaniline [(RO){sub 3}Si(CH{sub 2}){sub 3}NH-C{sub 6}H{sub 4}-NO{sub 2}] chromophores were prepared. A sol-gel was prepared from the silane modified with the second-order nonlinear optical chomophore co-condensed with trialkoxysilane in N,N-dimethylacetamide. The effects of co-monomer and silane concentration on the sol-gel and the effect of the alkoxyfunctionality and the processing parameters were investigated. When the organically modified silane sols were spin coated, aligned by corona discharge poling, and densified the films exhibited a second order response. The thermal and temporal stability of the second harmonic response of the 4-nitroaniline and the 4-aminostilbazolium chromophores were investigated.
- OSTI ID:
- 141659
- Report Number(s):
- CONF-930304--
- Country of Publication:
- United States
- Language:
- English
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