학술저널
Internal modification in transparent materials using plasma formation induced by a femtosecond laser
- 한국레이저가공학회
- 한국레이저가공학회지
- 한국레이저가공학회지 제15권 제1호
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2012.0315 - 19 (5 pages)
- 161

The fabrication of internal diffraction gratings with photoinduced refractive index modification in transparent materials was demonstrated using low-density plasma formation excited by a femtosecond (130 fs) Ti: sapphire laser (λ<sub>p</sub>=800 nm). The refractive index modifications with diameters ranging from 1 μm to 3 μm were photoinduced after plasma formation occurred upon irradiation with peak intensities of more than 2.0×10¹³ W/㎠. The graded refractive index profile was fabricated to be a symmetric around from the center of the point at which low-density plasma occurred.
Abstract
1. Introduction
2. Experimental Setup
3. Experimental Results and Discussion
4. Conclusion
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