Organic Multi-Photon Absorbing Molecules

BACKGROUND: Two-photon or other multi-photon absorbing molecules have been designed in a variety of technologies involving such subjects as optical data storage, 3-D microfabrication techniques, frequency upconverted lasing, optical power limiting, photodynamic therapy, and multi-photon fluorescence microscopy for biological imaging. The absorption of two or more photons by such molecules can trigger chemical and physical changes that make these substances useful for two-photon applications.

DESCRIPTION: Researchers at UC Santa Barbara have developed two-photon and other multi-photon absorbing chromophores having a conjugated pi-electron system, with donating groups at each end of the pi-electron system providing charge-transfer properties. The present invention also provides photo-polymerization compositions and a method of photo-polymerization, each incorporating the multi-photon absorbing cromophores.


* Three dimensional spatial resolution
* Absence of single-photon absorption
* Allows an incident light beam to penetrate deeper into a material


* Photo-polymerization
* Biological imaging
* Optical data storage
* 3-D microfabrication techniques
* Photodynamic therapy

This technology is available for licensing.

REFERENCE: 2004-244

US 7,232,913   [MORE INFO]

Type of Offer: Licensing

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