摘要
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 array was braze welded on the stainless steel substrate which was processed applying femtosecond and nanosecond laser pulses with pulse duration 40 fs and 5 ns, respectively. The threshold of diamond processed using femtosecond and nanosecond laser pulses was deduced by measuring the relationship between fabricated area and laser power. The processing results show that the threshold of diamond processed by femtosecond laser pulses is lower compared with that processed by nanosecond laser pulses. The morphology of the processed region using differentkinds of laser sources was also compared with microscope. The processing of diamond applying femtosecond was confirmed more effective than that using nanosecond pulses.
出处
《红外与激光工程》
EI
CSCD
北大核心
2015年第3期893-896,共4页
Infrared and Laser Engineering
基金
国家自然科学基金(11004042)
国家重大科学仪器设备开发专项(2012YQ040164)
中央高校基本科研业务费专项资金(HIT.NSRIF.2015043)
可调谐激光国家级重点实验室及航天科技支撑基金
关键词
金刚石
飞秒
纳秒
diamond
femtosecond
nanosecond
作者简介
董志伟（1980-），男，副教授，硕士生导师，主要从事超快激光加工及激光遥感方面的研究。Email：z．w．dong@hotmail．com
