Dynamical Study on the Ultra-Short Pulsed Laser in the Water Medium and Skin Tissue and Comparing Obtained Results

‎ S.N.Hoseinimotlagh; M.S.Sharifi; Kh.Shoja

doi:10.14331/ijfps.2014.330063

Authors

‎ S.N.Hoseinimotlagh Department of Physics, Islamic Azad University, Shiraz branch, Shiraz, Iran Author
M.S.Sharifi Teacher of Education Office, Fars, Sepidan, Iran Author
Kh.Shoja Department of Physics, Islamic Azad University, Science and Research Branch, Fars, Iran Author

DOI:

https://doi.org/10.14331/ijfps.2014.330063

Keywords:

laser, plasma, electron, ultra short

Abstract

Interest on the ultra-short laser has increased continually over the past decade. Scientists have an excellent power medical resource and the use of this resource will assist in the development of sustainable medical procedures. Scientists with its many technologies and significant medical range-might be expected to have considerable potential for treatment skin cancer. In this paper influences of the critical electron density and radiation intensity on the free-electron density for the ablation on the epidermis and dermis tissues are investigated. Our research work show existing of an inverse relationship between intensity radiations of laser pulsed and distance of focal spot with time dependent of free-electron density. This case is proper for skin cancer treatment. Also, our calculations for each medium (water and skin tissue)show that optimum time dependent free electron density for dermis layer at angle 16˚ and 22˚ which is a function of wavelength, beam width, beam radius, amplitude of the beam radiation strength and pulse duration is more than for epidermis layer.‎

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References

Ding, H., Lu, J. Q., Wooden, W. A., Kragel, P. J., & Hu, X.-H. (2006). Refractive indices of human skin tissues at eight wavelengths and estimated dispersion relations between 300 and 1600 nm. Physics in medicine and biology, 51(6), 1479.

Docchio, F., Regondi, P., Capon, M. R., & Mellerio, J. (1988). Study of the temporal and spatial dynamics of plasmas induced in liquids by nanosecond Nd: YAG laser pulses. 1: Analysis of the plasma starting times. Applied optics, 27(17), 3661-3668.

Fan, C. H., and Longtin, J. P. (2003). Radiative energy transport at the spatial and temporal mi-cro/nanoscales Radiative energy transport at the spatial and temporal mi-cro/nanoscales. UK: WITPress, Southampton, UK.

Fang, Q., & Hu, X.-H. (2004). Modeling of skin tissue ablation by nanosecond pulses from ultraviolet to near-infrared and comparison with experimental results. Quantum Electronics, IEEE Journal of, 40(1), 69-77.

Guo, Z., & Kumar, S. (2002). Three-dimensional discrete ordinates method in transient radiative transfer. Journal of thermophysics and heat transfer, 16(3), 289-296.

Guo, Z., Kumar, S., & San, K.-C. (2000). Multidimensional Monte Carlo simulation of short-pulse laser transport in scattering media. Journal of thermophysics and heat transfer, 14(4), 504-511.

Huang, H., & Guo, Z. (2010). Ultrashort pulsed laser ablation and stripping of freeze-dried dermis. Lasers in medical science, 25(4), 517-524.

Huang, K., Guo, J., & Xu, Z. (2009). Recycling of waste printed circuit boards: A review of current technologies and treatment status in China. Journal of Hazardous Materials, 164(2), 399-408.

Jiao, J. (2011). Simulation of laser-tissue thermal interaction and plasma-mediated ablation. Rutgers University-Graduate School-New Brunswick.

Jiao, J., & Guo, Z. (2009). Thermal interaction of short-pulsed laser focused beams with skin tissues. Physics in medicine and biology, 54(13), 4225.

Jiao, J., & Guo, Z. (2011). Modeling of ultrashort pulsed laser ablation in water and biological tissues in cylindrical coordinates. Applied Physics B, 103(1), 195-205.

Kennedy, P. K. (1995). A first-order model for computation of laser-induced breakdown thresholds in ocular and aqueous media. I. Theory. Quantum Electronics, IEEE Journal of, 31(12), 2241-2249.

Kim, K., & Guo, Z. (2004). Ultrafast radiation heat transfer in laser tissue welding and soldering. Numerical Heat Transfer, Part A: Applications, 46(1), 23-40.

Kumar, Z. G., Sunil. (2001). Radiation element method for transient hyperbolic radiative transfer in plane-parallel inhomogeneous media. Numerical Heat Transfer: Part B: Fundamentals, 39(4), 371-387.

Mester, E., Spiry, T., Szende, B., & Tota, J. G. (1971). Effect of laser rays on wound healing. The American Journal of Surgery, 122(4), 532-535.

Nieto, D., Flores-Arias, M. T., O'Connor, G. M., & Gómez-Reino, C. (2011). Fabrication of microlens arrays on soda-lima glasses with a Nd: YVO4laser. Paper presented at the International Conference on Applications of Optics and Photonics.

Tata, D. B., & Waynant, R. W. (2011). Laser therapy: A review of its mechanism of action and potential medical applications. Laser & Photonics Reviews, 5(1), 1-12.

Williams, F., Varma, S., & Hillenius, S. (2008). Liquid water as a lone‐pair amorphous semiconductor. The Journal of Chemical Physics, 64(4), 1549-1554.

Zhou, J., Chen, J., & Zhang, Y. (2008). Numerical modeling of transient progression of plasma formation in biological tissues induced by short laser pulses. Applied Physics B, 90(1), 141-148.