Improving Microfluidic Channel Surface Roughness
Microfluidic channel surface roughness might be a concern in direct femtosecond laser ablation, normally yielding an RMS value in the range of a few µm. One solution to improve this value is using the fs bi-burst regime.
In an article, entitled “Fabrication of Microfluidic Tesla Valve Employing Femtosecond Bursts,” it is shown how fs-burst mode ablation can be optimized to achieve sub-µm surface roughness in glass channel fabrication. This process is done without compromising on manufacturing throughput!
PHAROS laser from Light Conversion was part of the experimental setup for this article.
Features of the PHAROS Modular-Design Femtosecond Lasers for Industry and Science include:
- 100 fs – 20 ps tunable pulse duration
- 4 mJ maximum pulse energy
- 20 W maximum output power
- Single-shot – 1 MHz repetition rate
- Pulse picker for pulse-on-demand mode
- Automated harmonic generators (up to 5th harmonic)
- CEP stabilization option
- Repetition rate locking to an external source
To request more information or a quotation for Light Conversion products, contact IL Photonics.