Evaluation in "transparency" of glass particle-dispersed optical composites by pico-second order pulse profile

The change of pico-second order light pulse profile was applied for the evaluation of light transparency in glass particle-dispersed epoxy matrix composites. The experimental result demonstrates that change of the pico-second order pulsed light profile servers appears as (i) decrease of the peak intensity of transmitted pulse and (ii) broadening of the profile. The optical transparency of the composite was evaluated above the changes. It was concluded that the procedure employed is effective for evaluation of optical transparency of a bulk material, which is difficult to achieve by the conventional light transmittance measurement.