Acta Optica Sinica, Volume. 12, Issue 6, 572(1992)
A study of measurement of nonlinear refractive index and time resolution for pyrylium-doped polymer films
In this letter we report the nonlinear property of pyrylium-doped superpolymer studied by degenerate four-wave mixing (DFWM). The nonlinear susceptibility x(3) of pyrylium-doped polymer is 3×10-10 e.s.u.. The time resolution curve formed by the decay of phase conjugate reflection as a function of the delay of the backward pump pulse in the counterpropagating DFWM scheme was observed, and the relaxation time is 30 ps. The electronic and brientational mechanisms are discussed.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. A study of measurement of nonlinear refractive index and time resolution for pyrylium-doped polymer films[J]. Acta Optica Sinica, 1992, 12(6): 572