Abstract

Nonlinear optical absorption of single-wall carbon nanotubes in carboxymethylcellulose (CMC) thin polymer film has been studied by the Z-scan method. Nonlinear saturated absorption at $\lambda =1080\mathrm{nm}$ was registered with saturation intensity of $170\mathrm{MW}/{\mathrm{cm}}^2$. Ultrashort pulses with duration of $3\mathrm{ps}$ were generated at $\lambda =1055\mathrm{nm}$ using this composite polymer film as a saturable absorber for passive mode locking in a neodymium glass laser.

© 2009 Optical Society of America

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