Title :
The role of excited states in the nonlinear optical response of pTS
Author :
Flom, S.R. ; Lindle, J.R. ; Bartoli, F.J. ; Liu, M. ; Stegeman, G.I.
Author_Institution :
Div. of Opt. Sci., Naval Res. Lab., Washington, DC, USA
Abstract :
Summary form only given. The polydiacetylene (PDA), poly-[2,4 hexaxadiyne-1,6 diol-bis (p-toluenesulfonate)] (pTS) has been extensively studied because of its highly nonlinear optical (NLO) properties. For example, recent z-scan measurements exhibited fifth and seventh order dependencies in both the nonlinear absorption and refraction in single crystals of this material. The present work reports measurements of transient absorption, time-resolved degenerate four-wave mixing (DFWM) and nonlinear transmission (NLT) in pTS using picosecond excitation at wavelengths from 709 nm to 744 nm.
Keywords :
excited states; multiphoton processes; multiwave mixing; optical polymers; stimulated Raman scattering; time resolved spectra; 709 to 744 nm; excited states role; nonlinear optical response; nonlinear transmission; picosecond excitation; poly-[2,4-hexaxadiyne-1,6-diol-bis(p-toluenesulfonate)]; polydiacetylene; stimulated Raman scattering; time-resolved degenerate four-wave mixing; transient absorption spectra; Absorption; Length measurement; Nonlinear optics; Optical attenuators; Optical interferometry; Optical mixing; Optical refraction; Optical saturation; Optical variables control; Polymers;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-576-X
DOI :
10.1109/QELS.1999.807294
