Chromophore-functionalized polymeric thin-film nonlinear optical materials. Effects of in situ cross-linking on second harmonic generation temporal characteristics

Journal Article · · Chemistry of Materials; (USA)

OSTI ID:6663346

Park, J; Marks, T J; Yang, Jian; Wong, G K ^[1]

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1. Northwestern Univ., Evanston, IL (USA)

By increasing realizable chromophore number densities while impeding structural disorientation processes following electric field poling, chromophore-functionalized glassy polymers represent an advance in macromolecular second harmonic generation (SHG) materials. Nevertheless, structural relaxation/physical aging processes, which erode poling-induced noncentrosymmetry and hence limit SHG temporal stability, have not been microscopically well-understood or subject to additional chemical control in such materials. The latter issue might, in principle, be addressable by using a chromophore-functionalized macromolecule having additional chemical functionality, and they report here on the promising results of simultaneously poling and chemically cross-linking a chromophore-functionalized NLO polymer.

• OSTI ID: 6663346
• Journal Information: Chemistry of Materials; (USA), Journal Name: Chemistry of Materials; (USA) Vol. 2:3; ISSN CMATE; ISSN 0897-4756
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602 -- Other Materials-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
CHEMICAL REACTIONS
CROSS-LINKING
DATA ANALYSIS
FREQUENCY MIXING
HARMONIC GENERATION
MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
NONLINEAR OPTICS
OPTICS
ORGANIC COMPOUNDS
PHOTOCHROMIC MATERIALS
POLYMERIZATION
POLYMERS