Journal of Mechanical Science and Technology

, Volume 21, Issue 7, pp 1077–1082 | Cite as

Picosecond mid-IR laser induced surface damage on Gallium Phosphate (GaP) and Calcium Fluoride(CaF2)



Picosecond mid-IR USPL induced surface damage on a Gallium Phosphate (GaP) and Calcium Fluoride (CaF2) is reported. A semiconductor GaP and a dielectric material CaF2, that are transparent over3–10μm, were exposed to one picosecond mid-IR light (4.7μm) to investigate laser-induced surface morphological changes on the target The initiation of damage along the polishing scratch line of GaP and the random location of damage digs on the CaF2 suggests that the mid-IR picosecond laser-induced damage on targets started from intrinsic surface defects. Multiple pulse irradiations produced periodic corrugated surface structures (ripples) perpendicular to the polarization of light on both GaP and CaF2. In terms of the orientation and the spacing between ripples, observed ripples have common features with previously reported ripples.


Ultra short pulse laser Laser machining Incubation effect Laser-induced ripple 


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  1. Akhmanov, S. A., Emel’yanov, V. I., Koroteev, N. I. and Seminogov, V. N., 1985, “Interaction of Powerful Laser Radiation with the Surfaces of Semiconductors and Metals: Nonlinear Optical Effects and Nonlinear Optical Diagnostics,” Sovietphysics: Uspekhi, Vol. 28, pp. 1084–1124.CrossRefGoogle Scholar
  2. Ashkenasi, D., Rosenfeld, A., Varel, H., Wahmer, M. and Campbell, E. E. B., 1997, “Laser Processing of Sapphire with Picosecond and Sub-Picosecond Pulses,”Applied Surface Science, Vol. 120, pp. 65–80.CrossRefGoogle Scholar
  3. Baurele, D., 2000a,Laser processing and chemistry, Chapter 12, Berlin, Springer.Google Scholar
  4. Baurele, D., 2000b,Laser processing and che-mistry, Chapter 21, Berlin, Springer.Google Scholar
  5. Birnbaun, M., 1965, “Semiconductor Surface Damage Produced by Ruby Lasers,”Journal of Applied Physics, Vol. 36, pp. 3688–3689.CrossRefGoogle Scholar
  6. Chang, W., Choi, M., Kim, J., Cho, S. and Whang, K., 2004, “Nanoscale Patterning Using Femtosecond Laser and Self-Assembled Monolayers(SAMs),”Journal of Korean Society of Mechanical Engineering, Vol. 28, pp. 1270–1275.Google Scholar
  7. Chichkov, B. N., Momma, C., Nolte, S., von Alvensleben, F. and Tunnermann, A., 1996, “Femtosecond, Picosecond and Nanosecond Laser Ablation of Solids,”Applied Physics A, Vol. 63, pp. 109–115.CrossRefGoogle Scholar
  8. Gusev, V. E. and Karabutov, A. A., 1993,Laser Optoacoustics, New York: AIP Press.Google Scholar
  9. Keilmann, F. and Bai, Y. H., 1982, “Periodic Surface Structures Frozen into CO2 Laser-Melted Quartz,”Applied Physics A, Vol. 29, pp. 9–18.CrossRefGoogle Scholar
  10. Kittel, C., 1996,Introduction to solid state physics, 7th ed., Wiley, New York.Google Scholar
  11. Koechner, W., 2000,Solid State Laser Engineering, Chapter 11, Berlin, Springer.Google Scholar
  12. Neev, J., Da Silva, L. B., Feit, M. D., Perry, M. D., Rubenchik, A. M. and Stuart, B. C., 1996, “Ultrashort Pulse Lasers for Hard Tissue Ablation,”IEEE Journal of Selected Topics in Quantum Electronics, Vol. 2, pp. 790–800.CrossRefGoogle Scholar
  13. Oraevsky, A. A., Da Silva, L. B., Rubenchik, A. M., Feit, M. D., Glinsky, M. E., Perry, M. D., Mammini, B. M., Small, W. IV and Stuart, B. C., 1996, “Tissues With Nanosecond-to-Femtosecond Laser Pulses: Rel-ative Role of Linear and. Nonlinear Absorption, “IEEE Journal of Selected Topics in Quantum Electronics, Vol. 2, pp. 801–809.CrossRefGoogle Scholar
  14. Oraevsky, A. A., Jacques, S. L. and Tittel, F. K. “Measurements of Tissue Optical Properties by Means of Time-Resolved Detection of Laser-Induced Transient Stress,”Applied Optics, Vol. 36, pp. 402–415.Google Scholar
  15. Simanovskii, D., Schwettman, H. A., Lee, H. and Welch, A. J., 2003, “Mid-Infrared Optical Break-down in Dielectrics,”Physical Review Letters, Vol. 91, No. 10,107601(1–4).Google Scholar
  16. Spooner, G. J. R., Juhasz, T., Traub, I. R., Djotyan, G., Horvath, C., Sacks, Z., Marre, G., Miller, D. and Wil-liams, A. R., 2000, “Commercial and Biomedical Applications of Ultrafast Lasers,”Proceedings of SPIE, Vol. 3934, pp. 62–72.CrossRefGoogle Scholar
  17. Stoian, R., Ashkenasi, D., Rosenfeld, A., Wittmann, M., Kelly, R. and Campbell, E. E. B., 2000, “The Dynamics of Ion Expulsion in Ultrashort Pulse Laser Sputtering of A12O3,”Nuclear Instruments and Methods in Physics Research B, Vol. 166-167, pp. 682–690.CrossRefGoogle Scholar
  18. Vasquez, M. J., Halada, G. P., Clayton, C. R. and Gouma, P. I., 1999, “Fabrication of Nanostructured Al CuMg Thin Film by Femtosecond Pulsed Laser Ablation,”Thin Solid Films, Vol. 458, pp. 37–42.Google Scholar

Copyright information

© The Korean Society of Mechanical Engineers (KSME) 2007

Authors and Affiliations

  1. 1.School of Mechanical EngineeringKyungPook National UniversityDaeguKorea

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