Journal
OPTICS LETTERS
Volume 27, Issue 15, Pages 1348-1350Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.27.001348
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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. (C) 2002 Optical Society of America.
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