Femtosecond laser writing of porous capillaries inside fused silica glass
Optics Letters, Vol. 32, Issue 11, pp. 1459-1461 (2007)
http://dx.doi.org/10.1364/OL.32.001459
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Abstract
We demonstrate that within a restricted optical pulse duration–pulse energy parameter space tightly focused femtosecond laser radiation can be used to fabricate porous capillaries in bulk fused silica glass by simply moving the laser focus through the material. We show that the rate of penetration of liquids into the porous capillaries can be controlled by the laser polarization, which determines their morphology. The fluid propagation is measured using the form birefringence of nanocrack/nanovoid structures produced inside the capillaries. We also demonstrate the nanofiltration capabilities of the capillaries by separating the relatively small molecules of Rhodamine 6G dye from their solvent.
© 2007 Optical Society of America
OCIS Codes
(160.6030) Materials : Silica
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.3990) Optical devices : Micro-optical devices
(320.2250) Ultrafast optics : Femtosecond phenomena
(350.3390) Other areas of optics : Laser materials processing
ToC Category:
Laser Materials Processing
History
Original Manuscript: February 22, 2007
Revised Manuscript: March 26, 2007
Manuscript Accepted: March 27, 2007
Published: May 2, 2007
Virtual Issues
Vol. 2, Iss. 7 Virtual Journal for Biomedical Optics
Citation
C. Hnatovsky, E. Simova, P. P. Rajeev, D. M. Rayner, P. B. Corkum, and R. S. Taylor, "Femtosecond laser writing of porous capillaries inside fused silica glass," Opt. Lett. 32, 1459-1461 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-11-1459
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