Monitoring of Evolving Laser Induced Periodic Surface Structures
| Autor: | A. Lübcke, Zsuzsanna Pápa, M. Schnürer |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Surface (mathematics)
optical properties Materials science Field (physics) 02 engineering and technology laser induced periodic surface structures 01 natural sciences lcsh:Technology law.invention 010309 optics lcsh:Chemistry chemistry.chemical_compound Optics law 0103 physical sciences Modulation (music) General Materials Science laser nanostructuring Instrumentation lcsh:QH301-705.5 Fluid Flow and Transfer Processes business.industry lcsh:T Process Chemistry and Technology General Engineering Finite-difference time-domain method 021001 nanoscience & nanotechnology Laser lcsh:QC1-999 Computer Science Applications Silicon nitride chemistry lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 Femtosecond Surface modification 0210 nano-technology business lcsh:Engineering (General). Civil engineering (General) lcsh:Physics material processing |
| Zdroj: | Applied Sciences, Vol 9, Iss 17, p 3636 (2019) Applied Sciences Volume 9 Issue 17 |
| ISSN: | 2076-3417 |
| Popis: | Laser induced periodic surface structures (LIPSS) are generated on titanium and silicon nitride surfaces by multiple femtosecond laser pulses. An optical imaging system is used to observe the backscattered light during the patterning process. A characteristic fringe pattern in the backscattered light is observed and evidences the surface modification. Experiments are complemented by finite difference time domain numerical simulations which clearly show that the periodic surface modulation leads to characteristic modulations in the coherently scattered light field. It is proposed that these characteristic fringe pattern can be used as a very fast and low-cost monitor of LIPSS formation formation during the manufacturing process. |
| Databáze: | OpenAIRE |
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