Dependence of laser-induced optical breakdown on skin type during 1064 nm picosecond laser treatment
| Autor: | Jewan Kaiser Hwang, Hyun Wook Kang, Hyeonsoo Kim, Jongman Choi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Picosecond laser Skin type Light General Physics and Astronomy Lasers Solid-State 01 natural sciences General Biochemistry Genetics and Molecular Biology law.invention 010309 optics Optics law Optical breakdown 0103 physical sciences General Materials Science Irradiation Low-Level Light Therapy Lenses Skin integumentary system Scattering business.industry Optimal treatment 010401 analytical chemistry General Engineering General Chemistry Laser 0104 chemical sciences Vacuolization business |
| Zdroj: | Journal of biophotonicsREFERENCES. 14(9) |
| ISSN: | 1864-0648 |
| Popis: | The current study aims to evaluate the dependence of laser-induced optical breakdown (LIOB) on skin types by using 1064 nm picosecond laser with micro-lens arrays (MLA) and diffractive optical elements (DOE). Both black and white skin tissues were examined to comparatively assess the LIOB effects in the skin in terms of laser-induced vacuolization. The black skin irradiated at 3.0 J/cm2 demonstrated that MLA yielded a deeper distribution (180-400 μm) of laser-induced vacuoles with a size of 67 μm, compared to DOE (180-280 μm; 40 μm in size). However, the white skin presented that MLA created larger vacuoles (134 μm in size) in a smaller number at deeper distributions (125-700 μm) than MLA with the black skin. DOE generated no laser-induced vacuolization in the white skin. The white skin tissue with inherent higher scattering could be responsible for deeper vacuolization after the picosecond laser treatment. Further investigations are expected to determine the optimal treatment conditions for various skin types. |
| Databáze: | OpenAIRE |
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