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Single-pulse ultrafast laser imprinting of axial dot arrays in bulk glasses |
Optics Letters, Vol. 36, Issue 3, pp. 325-327 (2011)
http://dx.doi.org/10.1364/OL.36.000325
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Abstract
Ultrafast laser processing of bulk transparent materials can significantly gain flexibility when the number of machining spots is increased. We present a photoinscription regime in which an array of regular dots is generated before the region of main laser focus under single-pulse exposure in fused silica and borosilicate crown glass without any external spatial phase modulation. The specific position of the dots does not rely on nonlinear propagation effects but is mainly determined by beam truncation and is explained by a Fresnel propagation formalism taking into account beam apodization and linear wavefront distortions at the air/glass interface. The photoinscription regime is employed to generate a two-dimensional array of dots in fused silica. We show that an additional phase modulation renders flexible the pattern geometry.
© 2011 Optical Society of America
OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(320.2250) Ultrafast optics : Femtosecond phenomena
(070.7345) Fourier optics and signal processing : Wave propagation
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: September 3, 2010
Revised Manuscript: December 20, 2010
Manuscript Accepted: December 22, 2010
Published: January 24, 2011
Citation
C. Mauclair, A. Mermillod-Blondin, S. Landon, N. Huot, A. Rosenfeld, I. V. Hertel, E. Audouard, I. Myiamoto, and R. Stoian, "Single-pulse ultrafast laser imprinting of axial dot arrays in bulk glasses," Opt. Lett. 36, 325-327 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-3-325
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