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  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies
  • Technical Digest (CD) (Optica Publishing Group, 2006),
  • paper CThQ2

Two-photon absorption studies of polymethine and squaraine dyes with analogous structures

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Abstract

We compare two-photon absorption spectra of polymethines and squaraines experimentally and quantum-chemically. Squaraines display two-photon cross-sections considerably larger (7×103GM) than polymethines, due to an extra band introduced by the squaraine structure in the conjugated chain.

© 2006 Optical Society of America

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