Abstract
When using ultra-short laser pulses it is possible to machine areas smaller than the focal spot by restricting the threshold light intensity to the centre of the spot. However, even smaller and cleaner features can be achieved by utilising a sacrificial material on top of the layer being machined. In particular, we have found that features can be reduced by up to a factor of two and the heat-affected-zone by a factor of three in polymers. These results have implications for improved fabrication of fluid and gas delivery systems and optical devices such as photonic crystals and related devices.
Original language | English |
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Title of host publication | Proceedings of the 23rd international congress on applications of lasers and electro-optics 2004 |
Editors | Rajesh Patel |
Place of Publication | Orlando, FL |
Publisher | Laser Institute of America |
Pages | 31-34 |
Number of pages | 4 |
ISBN (Print) | 0912035773, 9780912035772 |
DOIs | |
Publication status | Published - 2004 |
Event | ICALEO 2004 - 23rd International Congress on Applications of Laser and Electro-Optics - San Francisco, CA, United States Duration: 4 Oct 2004 → 7 Oct 2004 |
Other
Other | ICALEO 2004 - 23rd International Congress on Applications of Laser and Electro-Optics |
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Country/Territory | United States |
City | San Francisco, CA |
Period | 4/10/04 → 7/10/04 |