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We fabricated a silicon structure in silicate glass prepared with metallic aluminum in the starting material,using femtosecond laser irradiation.Small Si-rich structures such as Si clusters were transformed into larger,but still nano-sized,Si particles by laser irradiation.These structures grew to micro- size particles due to the thermite reaction promoted by heat treatment.We determined the effect of focused laser pulses on the Si deposition process using the time-resolved transient lens method.Localized high-temperature, high-pressure,and the generation of shock waves appear to be very important in forming the Si-rich structures that ultimately grow into Si particles.
We fabricated a silicon structure in silicate glass prepared with metallic aluminum in the starting material, using femtosecond laser irradiation. 玛利 Si-rich structures such as Si clusters were transformed into larger, but still nano-sized, Si particles by laser irradiation .sese structures grew to micro-size particles due to the thermite reaction promoted by heat treatment. We determined the effect of focused laser pulses on the Si deposition process using the time-resolved transient lens method. Localized high-temperature, high-pressure, and the generation of shock waves appear to be very important in forming the Si-rich structures that ultimately grow into Si particles.