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Improved temporal stability of polymethine laser dyes in aqueous solutions

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2 Author(s)
C. Hackett ; Massachusetts Institute of Technology, Cambridge, MA, USA ; C. Dewey

Polymethine laser dyes which fluoresce in the near infrared in organic solvents generally exhibit poor temporal stability at room temperature. Two typical laser-pumped polymethine dyes in aqueous solutions containing nonionic surfactants are investigated. Temporal stability was improved 20-fold, as compared to organic solutions, with no significant changes in laser-pumping threshold or tuning range.

Published in:

IEEE Journal of Quantum Electronics  (Volume:9 ,  Issue: 11 )