A CROSS-LINKABLE POLYIMIDE FOR SECOND-ORDER OPTICAL NONLINEARITIES

Authors
LIANG ZY DALTON LR GARNER SM KALLURI S CHEN A STEIER WH
Citation
Zy. Liang et al., A CROSS-LINKABLE POLYIMIDE FOR SECOND-ORDER OPTICAL NONLINEARITIES, Chemistry of materials, 7(5), 1995, pp. 941-944
Citations number
14
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Chemistry of materials → ACNP
ISSN journal
08974756
Volume
7
Issue
5
Year of publication
1995
Pages
941 - 944
Database
ISI
SICI code
0897-4756(1995)7:5<941:ACPFSO>2.0.ZU;2-G
Abstract
A new cross-linkable polyimide with an NLO chromophore covalently inco rporated for second-order optical nonlinearities has been developed. T he prepolymer exhibited good solubility in common organic solvents, pe rmitting processing relevant to device fabrication. Optical-quality fi lms were obtained, efficiently poled, cross-linked and imidized. The l attice hardening due to cross-linking and imidization resulted in good stability of the poling-induced order at elevated temperatures. The s econd harmonic generation signal exhibited dynamic stability up to 160 degrees C and a d(33) coefficient of 70 pm/V.