Title :
Two-photon absorption in π-conjugated polymers due to biexcitonic states
Author :
Shakin, V.A. ; Abe, Shuji
Author_Institution :
RIKEN, Inst. of Phys. & Chem. Res., Sendai, Japan
Abstract :
Here we are interested in the properties of bulk polymer solids, so that, using cyclic boundary condition, we can treat relatively long chains in the configuration interaction (CI) calculation with all single and double excitations taken into consideration. The third order susceptibility, is calculated in the SD-CI approximation using PPP hamiltonian for polymer rings
Keywords :
excited states; light absorption; molecular configurations; nonlinear optical susceptibility; nonlinear optics; optical polymers; two-photon processes; π-conjugated polymers; PPP hamiltonian; SD-CI approximation; biexcitonic states; bulk polymer solids; configuration interaction calculation; cyclic boundary condition; double excitations; long chains; polymer rings; single excitations; third order susceptibility; two-photon absorption; Absorption; Boundary conditions; Charge carrier processes; Eigenvalues and eigenfunctions; Laboratories; Nonlinear optics; Optical materials; Optical polymers; Resonance; Solids;
Conference_Titel :
Nonlinear Optics: Materials, Fundamentals, and Applications, 1994. NLO '94 IEEE
Conference_Location :
Waikoloa, HI
Print_ISBN :
0-7803-1473-5
DOI :
10.1109/NLO.1994.470875
