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分别利用脉宽在40 fs和5 ns的飞秒及纳秒激光脉冲加工了钎焊在不锈钢底板上的金刚石阵列。通过测量加工区域面积和入射激光功率的关系推断出了飞秒和纳秒激光脉冲加工金刚石材料的阈值。实验结果表明,相比于纳秒激光加工,利用飞秒激光加工金刚石的阈值更低。也利用显微镜比较了利用不同种类光源加工金刚石后加工区域的形貌。研究结果证明了利用飞秒激光加工金刚石相比于纳秒激光更为有效。
Diamond arrays brazed to a stainless steel substrate were machined with femtosecond and nanosecond laser pulses with pulse widths of 40 fs and 5 ns, respectively. The thresholds of femtosecond and nanosecond laser pulsed diamond materials are deduced by measuring the relationship between the area of the processed area and the incident laser power. Experimental results show that diamonds using femtosecond laser have a lower threshold than nanosecond laser processing. Microstructure was also used to compare the morphology of the processed area after the diamond was processed using different types of light sources. The results show that the use of femtosecond laser processing of diamond compared to nanosecond laser is more effective.