Three-dimensional microfabrication by two-photon-initiated polymerization with a low-cost microlaser
- 1 August 2002
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 27 (15) , 1348-1350
- https://doi.org/10.1364/ol.27.001348
Abstract
Fabrication of submicrometer structures by two-photon-initiated polymerization is performed with an inexpensive and low-power microlaser. This is made possible by the design of photoinitiators with strong two-photon absorption cross sections. We analyze the influence of both material properties and irradiation conditions on the two-photon polymerization rate and show that resins based on our highly sensitive two-photon photoinitiator can be solidified with microlaser excitation, whereas commercial UV photoresins require ultrashort and intense laser pulses.Keywords
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