Optical Sciences

Biomolecules and nanostructures

The Optical Sciences group studies the interaction of light and matter. Our current focus is on detection and sensing/imaging with an emphasis on the development of integrated photonics. We are part of Twente University's Department of Science and Technology and member of the MESA+ institute.

 

HIGHLY ORDERED FILMS OF NEAT CALIX[4]ARENES FOR 2ND-ORDER NONLINEAR OPTICS


KELDERMAN E, HEESINK GJT, DERHAEG L, VERBIEST T, KLAASE PTA, VERBOOM W, ENGBERSEN JFJ, VANHULST NF, CLAYS K, PERSOONS A, REINHOUDT DN
ADVANCED MATERIALS
vol 5 issue 12: p925-p930 DEC 1993

In substituted calix[4]-arenes-cyclophanes consisting of four phenol moieties connected by methylene bridges-the number and also the relative positions of the donor and/or acceptor pi- conjugated (D-pi-A) units can be varied by changing the configuration. The Figure illustrates the cone configuration. The molecular and thin-film NLO properties of three tetra-D-pi- A-substituted calix[4]arenes, including their orientation in thin films and the stability of their NLO properties, are described.
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