Title :
Nonlinear interactions of excitons in conducting polymers: femtosecond transient absorption and holography studies
Author :
McBranch, D.W. ; Kraabel, B. ; Klimov, V.I.
Author_Institution :
Div. of Chem. Sci. & Technol., Los Alamos Nat. Lab., NM, USA
Abstract :
We present detailed studies of femtosecond transient holography in conjugated polymer blends and superlattices, using tunable non-degenerate four-wave mixing. Combined with spectral transient absorption studies, these experiments allow determination of the complex nonlinear index of refraction over the photon energy range from 1-3 eV
Keywords :
conducting polymers; excitons; holography; multiwave mixing; refractive index; superlattices; tuning; 1 to 3 eV; complex nonlinear index of refraction; conducting polymers; conjugated polymer blends; excitons; femtosecond transient absorption; femtosecond transient holography; holography studies; nonlinear interactions; photon energy range; spectral transient absorption studies; superlattices; tunable non-degenerate four-wave mixing; Absorption; Chemical technology; Excitons; Holographic optical components; Holography; Nonlinear optics; Optical polymers; Oscillators; Stimulated emission; Ultrafast optics;
Conference_Titel :
Nonlinear Optics '98: Materials, Fundamentals and Applications Topical Meeting
Conference_Location :
Kauai, HI
Print_ISBN :
0-7803-4950-4
DOI :
10.1109/NLO.1998.710174
