Study on the Expansion Kinetics of Plasma and Absorption Wave Induced by Millisecond-Nanosecond Combined Pulse Lasers in Fused Quartz
Round 1
Reviewer 1 Report
Submitted research article as “Study on the expansion kinetics of plasma and absorption wave induced by millisecond-nanosecond combined pulse lasers in fused quartz” contains significant information for readers but several aspects are not clear at initial stage and need proper MAJOR revision to reflect its clear finding. I recommended its publication after proper addition of suggestions, modification and improvement in the revision as mentioned below.
1. Please add substantive comments on the progress on laser in in fused quartz, which need to provide the necessary comparative analysis, evaluation methods and theories, as well as technical applications.
2. I recommend authors provide more details in current technology in introduction section.
3. The author missed some important research papers based on laser in application for the treatment of materials as Progress in Energy and Combustion Science 91, 100981, 2022; Nanoscale 14 (25), 8914-8918; 2022; Coordination Chemistry Reviews 342, 34-79, 2017;
4. What kinds of parameters affecting the expansion kinetics of plasma? Should be mentioned in details in introduction section in separate paragraph.
5. What is the role of wave length and its power of laser for expansion kinetics?
6. In Fig. 3, why the energy coupling efficiency is the highest when ∆t =1ms? Provide the reason.
7. In Fig. 3b, why the energy density is not completely linear with peak temperature/ Provide its fitting.
8. Some errors in grammar and spelling should be corrected
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
This manuscript is about a theoretical simulation of the laser-induced damage on the fused quartz. Compared to the previous studies, this work investigates the effect of the 800J/cm2 millisecond and 20J/cm2 nanosecond combined pulse. I would recommend accepting this manuscript after the minor revision. My questions and comments are as follows.
1. In the introduction part, I would recommend illustrating more background knowledge on the thermal effects and mechanical effects of lasers. And how nanosecond laser and millisecond laser are different in terms of these two effects. It would be helpful for readers to understand the importance of this study.
2. It is known that the beam size will influence the plasma temperature etc. In this simulation, what is the laser beam size? I would assume the size is the same as the fused quartz which is 1mm in diameter. Is that correct?
3. It is illustrated in Figure 3 that the 1ms delay of the two laser pulses will have the strongest coupling and the highest thermal effect. Why the 0.25 ms delay case is investigated later instead of the 1 ms? Is there any specific reason for that?
4. The bar in the Figure 3-6 is hard to read.
5. In terms of the format, I would recommend re-labeling all the figures. If you use figure 3.x in the content, it should be figure 3.x in the caption instead of multiple “Figure 3”.
6. In terms of drafting, I highly recommend the authors to further proofread this manuscript and polish the sentences, especially in the introduction part.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
