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Two-Photon Absorbing Chromophores Patent Portfolio

The US Air Force seeks a partner to license and commercialize its patent portfolio centered on several high performing chromophores with large effective two-photon absorption cross-sections

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chromophores as laser dyes for stabilization and calibration
Chromophores as laser dyes for stabilization and calibration
The Technology: 

New novel chromophores combined with ultrafast high-intensity lasers has renewed interest in advancing new applications in photonics and biophotonics. The enabling feature is the molecule’s ability to absorb two photons at a low frequency (energy) light source and then emit light at higher frequency. For instance, near infrared (“NIR”) may be upconverted to light in the ultraviolet-visible (“UV-vis”) region via a two-photon absorption (TPA) process. The energy difference between the involved lower and upper states of the molecule is equal to the sum of the energies of the two photons.
US Air Force R&D lab researchers have designed and synthesized several two-photon absorbers having large cross-section values for various nonlinear optical applications.  These multi-branched two photon active (TPA-active) molecules can be used in films and coating using common organic solvents.

  • Increased ease of film fabrication: Chromophores can be solution-processed into free-standing polymer films
  • Functional: Polymers can be cast in optically clear films with reasonable mechanical properties 
  • Photosensitivity: Chromophore’s high sensitivity is suited for two-photon induced polymerization resins
  • Robust: Chromophore’s photo- and thermal-stabilities allow for laser stabilization and calibration 

The Opportunity: 
  • Collection of eight (8) patents available as a portfolio (Click Here for Patent and Papers Package) <
  • Potential for collaboration with lab researchers
  • Additional information available at