Fullerenes, nanotubes and nanoclusters as nonlinear optical limiters

Optical limiting mechanism in fullerene containing liquids and solid-state matrices, and suspensions of nanotubes and nanoclusters were investigated in wavelength range 0.3-1.315 mkm. Solutions of fullerenes C/sub 60/ and C/sub 70/ in toluene and CCL/sub 4/ were studied. The optical limiting in fullerene-containing media was determined by two processes- the reverse saturated absorption (RSA) and optically induced stimulated scattering (SS). This study has developed several variants multi-stage schemes of optical limiters on the base of fullerene-containing systems C/sub 60/-CCl/sub 4/, C/sub 60/-toluene and also at the suspensions of Astralene.