Ultrafast Exciton Response of High Optical Density J-aggregates from Ultrathin Films of Cyanine Dyes

Publication Type:

Miscellaneous

Source:

Conference on Lasers and Electro-Optics (CLEO), Optical Society of America, p.QTuB3 (2006)

Keywords:

2006, 2013 and earlier, Nonlinear optics, Optical nonlinearities in organic materials, Ultrafast nonlinear optics

Abstract:

Ultrathin films of cyanine dye J-aggregates show extraordinary exciton cross sections. Exciton dynamics are studied by ultrafast pump-probe and
transient photoluminescence spectroscopy. An exciton delocalization length
of N=18 monomers was measured at room temperature.