烧蚀
纳秒
激光烧蚀
磁场
材料科学
激光器
等离子体
硅
吸收(声学)
波长
光电子学
光学
物理
工程类
航空航天工程
复合材料
量子力学
作者
Hamid Farrokhi,Vitali E. Gruzdev,Hong Zheng,Rajdeep Singh Rawat,Wei Zhou
摘要
A constant magnetic field can significantly improve the quality and speed of ablation by nanosecond laser pulses. These improvements are usually attributed to the confinement of laser-produced plasma by the magnetic field and specific propagation effects in the magnetized plasma. Here we report a strong influence of constant axial magnetic field on the ablation of silicon by 20-ns laser pulses at wavelength 355 nm, which results in an increase of ablation depth by a factor of 1.3 to 69 depending on laser parameters and magnitude of the magnetic field. The traditional plasma effects do not explain this result, and magneto-absorption of silicon is proposed as one of the major mechanisms of the significant enhancement of ablation.
科研通智能强力驱动
Strongly Powered by AbleSci AI