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Studying the Thermal Effects of Nanosecond Nd: YAG Laser -Gold Metal Interactions | ||
الکترومغناطیس کاربردی | ||
Article 12, Volume 12, Issue 1 - Serial Number 28, September 2024, Pages 113-105 PDF (3.54 M) | ||
Document Type: Original Article | ||
Authors | ||
Nader Javanmard1; Maryam Aliannezhadi* 2; Maryam Aliannezhadi3 | ||
1PhD student, Semnan University, Semnan, Iran | ||
2Assistant Professor, Semnan University, Semnan, Iran | ||
3Associate Professor, Semnan University, Semnan, Iran | ||
Receive Date: 09 March 2024, Revise Date: 09 June 2024, Accept Date: 10 July 2024 | ||
Abstract | ||
Today, the interaction of laser beams with materials has a wide range of interests in daily, industrial, scientific, and medical applications. In the paper, the interaction of a single nanosecond pulse of a second harmonic Nd-YAG laser with gold metal is investigated to obtain a more comprehensive understanding of the basics of laser beam interaction with metals and to evaluate the appropriate conditions for laser radiation. The simulations were done by solving the quadratic equation of heat in three dimensions with the Generalized Finite Difference Time Domain (G-FDTD) method using Fortran programming language. Also, metal properties such as the thermal conductivity and specific heat capacity of gold are considered as a function of temperature in the model so that the results are closer to reality. The results indicate that the energy per pulse and linewidth of the laser pulse and also the spot size of the laser beam have a significant effect on the distribution of temperature on the surface and depth of the gold and also on the heat-affected zone (HAZ). Indeed, the maximum temperature is directly related to increases in energy per pulse. While it shows an inverse relationship between the time linewidth of the laser pulse and the spot size of the laser beam. Also, the time of maximum temperature has a delay compared to the peak of the laser pulse, and this delay time shows a direct and linear relationship with the linewidth of the laser pulse. In addition, the dependences of the gold melting threshold to characteristic parameters of the laser including laser spot size, laser linewidth, and laser fluences are studied in the paper to provide a general map for users to achieve melting of the gold by exposing the nanosecond pulse of second harmonic Nd-YAG laser.. | ||
Keywords | ||
Nanosecond Pulsed Laser; Linewidth of the Laser Pulse; Laser-Gold Interaction; Generalized Finite Difference Time Domain (G-FDTD) Method | ||
References | ||
[1] P. Malik, J. N. Acharyya, M. Shanu, A. Kuriakose, S. Ghosh, P. Srivastava, and G. V. Prakash, "Studies on Femtosecond Laser Textured Broadband Anti-reflective Hierarchical a-SiNx: H Thin Films for Photovoltaic Applications," ACS Applied Energy Materials .10.1021/acsaem.2c03984, 2023. [2] J. Bonse and J. Krüger, "Structuring of thin films by ultrashort laser pulses," Applied Physics A, vol. 129, no. 1, p. 14. 10.1007/s00339-022-06229-x ,2023. [3] M. Aliannezhadi, M. H. Mozaffari, and F. Amirjan, "Optofluidic R6G microbubble DBR laser: A miniaturized device for highly sensitive lab-on-a-chip biosensing," Photonics and Nanostructures-Fundamentals and Applications, vol. 53, p. 101108.10.1016/j.photonics2023.101108. [4] S. Song et al., "A critical review on the simulation of ultra-short pulse laser-metal interactions based on a two-temperature model (TTM)," Optics & Laser Technology, vol. 159, p. 109001.101016/j.optlastec. 2022.109001,2023.
[9] V. Dimitriou, E. Kaselouris, Y. Orphanos, M. Bakarezos, N. Vainos, M. Tatarakis, and N. Papadogiannis, "Three dimensional transient behavior of thin films surface under pulsed laser excitation," Applied Physics Letters, vol. 103, no. 11, p. 114104, 10.1063/1.4821274,2013. [10] X. Li and Y. Guan, "Theoretical fundamentals of short pulse laser–metal interaction: A review," Nanotechnology and Precision Engineering, vol. 3, no. 3, pp. 105-125.10.1016/j.npe.2020.08.001, 2020. [11] Y. Zhang, D. Zhang, J. Wu, Z. He, and X. Deng, "A thermal model for nanosecond pulsed laser ablation of aluminum," AIP Advances, vol. 7, no. 7.10.1063/1.4995972, 2017. [12] N. A. Vasantgadkar, U. V. Bhandarkar, and S. S. Joshi, "A finite element model to predict the ablation depth in pulsed laser ablation," Thin Solid Films, vol. 519, no. 4, pp. 1421-1.10.1016/j.tsf.2010.09.016,2010 [13] E. Matthias et al., "The influence of thermal diffusion on laser ablation of metal films," Applied Physics A, vol. 58, pp. 129-136.10.1007/BF00332169, 1994. [14] F. Ruffino and M. G. Grimaldi, "Nanostructuration of thin metal films by pulsed laser irradiations: a review," Nanomaterials, vol. 9, no. 8, p. 1133.10.3390/nano908 1133, 2019. [15] E. G. Gamaly, Femtosecond laser-matter interaction: theory, experiments and applications. CRC Press, 2011. [16] M. Stafe, A. Marcu, and N. N. Puscas, Pulsed laser ablation of solids: basics, theory and applications. Springer Science & Business Media, 2013. | ||
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