Title :
Improved temporal stability of polymethine laser dyes in aqueous solutions
Author :
Hackett, C. ; Dewey, C.
Author_Institution :
Massachusetts Institute of Technology, Cambridge, MA, USA
fDate :
11/1/1973 12:00:00 AM
Abstract :
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.
Keywords :
Electromagnetic wave absorption; Ethanol; Fluorescence; Laser excitation; Laser noise; Laser stability; Laser tuning; Pump lasers; Solvents; Temperature;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.1973.1077419
