Dispersion and pulse-duration dependence of the nonlinear optical response of Gd[sub 2] at C[sub 80]

Yaglioglu, Gul; Pino, Robinson; Dorsinville, Roger; Liu, J. Z.
February 2001
Applied Physics Letters;2/12/2001, Vol. 78 Issue 7, p898
Academic Journal
Single-beam z-scan and transient absorption experiments were carried out between 400 and 1000 nm in Gd[sub 2] at C[sub 80] thin films and solutions. The third-order nonlinearity was large, negative, and strongly dependent on pulse duration and wavelength. Transient absorption results suggest that the fast nonlinear response is enhanced by two-photon-induced ground-state absorption and excited-state bleaching effects. © 2001 American Institute of Physics.


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