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Canva, Michael
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Publications (5/5 displayed)
- 2012Bimodal behavior and isobestic transition pathway in surface plasmon resonance sensing
- 2006Importance of dye host on absorption, propagation losses and amplified spontaneous emission for dye-doped polymer thin films
- 2000Importance of chromophore environment on the near infrared absorption of polymeric waveguides
- 2000Importance of chromophore environment on the near infrared absorption of polymeric waveguides
- 2000Relative electrical resistivities and poling of nonlinear optical polymeric waveguidescitations
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article
Importance of chromophore environment on the near infrared absorption of polymeric waveguides
Abstract
The near-infrared absorption of two chromophore functionalized polymers and combinations of seventeen different guest chromophores in seven different organic polymer matrices were investigated to assess the effect of chromophore structure and environment on absorption. The near-infrared absorption losses were found to be dramatically larger by as much as 2-3 orders of magnitude in polymer matrices than in solution. Furthermore, the absorption of the long-wavelength tail appears to be related to the glass transition temperature of the polymer matrix that contains the chromophore. These results are interpreted in terms of inhomogeneous broadening