Thermal conductivity contrast measurement of fused silica exposed to low-energy femtosecond laser pulses
- Micro- and Nano-Scale Engineering, Mechanical Engineering Department, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands)
Femtosecond laser irradiation has various noticeable effects on fused silica. Of particular interest, pulses with energy levels below the ablation threshold can locally increase the refractive index and the material etching selectivity to hydrofluoric acid. The mechanism responsible for these effects is not yet fully understood. In this letter, the authors report on local thermal conductivity mapping of laser-affected zones. It is found that these zones exhibit a lower thermal conductivity at room temperature.
- OSTI ID:
- 20880037
- Journal Information:
- Applied Physics Letters, Vol. 89, Issue 16; Other Information: DOI: 10.1063/1.2363957; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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