Abstract
Polymers with attached side-chains groups like DANS (4-dialkylamino-4′-nitrostil-bene) are used in electro-optic applications and have potential for efficient second harmonic generation. It has also been shown that they have interesting third order nonlinearities.2 Therefore it is important to understand the physics of effects such as two-photon absorption which can lead to excessive high power losses, as well as structural changes in the material due to photobleaching.1
© 1994 Optical Society of America
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