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Concentration dependence of the gain spectrum in energy-transfer dye mixtures

Journal Article · · J. Appl. Phys.; (United States)
DOI:https://doi.org/10.1063/1.323155· OSTI ID:7358522
Acceptor concentration dependence of the gain-spectrum peak was measured in coumarin 30 (donor) and rhodamine 6G (acceptor) mixtures. Change of the gain spectrum due to the energy-transfer reaction is attributed to the change of the effective fluorescence lifetime. From the concentration dependence of the effective fluorescence lifetime, rate constants were obtained as follows: k/subd//suba/ (for resonance energy transfer) =4 x 10/sup -11/ cm/sup 3//sec and k'/subd//suba/ (for radiative energy transfer) =2 x 10/sup -9/ cm/sup 3//sec. Consequently, the radiative energy transfer was the most dominant mechanism in the energy-transfer reaction. (AIP)
Research Organization:
Electrical Communication Laboratories, Musashino, Tokyo, Japan
OSTI ID:
7358522
Journal Information:
J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 47:7; ISSN JAPIA
Country of Publication:
United States
Language:
English