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Femtosecond pulse induced nanostructures in ULE™ glass

: Zimmermann, F.; Plech, A.; Richter, S.; Schmitt, A.; Tünnermann, A.; Nolte, S.

Optical Society of America -OSA-, Washington/D.C.:
European Conference on Lasers and Electro-Optics 2015 : European Quantum Electronics Conference, Munich, Germany, 21–25 June 2015
Washington, DC: OSA, 2015
ISBN: 978-1-4673-7475-0
Paper CM 6 2
European Conference on Lasers and Electro-Optics (CLEO Europe) <2015, Munich>
European Quantum Electronics Conference (EQEC) <2015, Munich>
Fraunhofer IOF ()

We report on nanostructures induced by tightly focused ultrashort laser pulses in the bulk of ULE glass. These so-called nanogratings [1] consist of sheet-like cavities which arrange in periodic grating planes with subwavelength periodicity. Emerging after several laser pulses the grating planes are always oriented perpendicular to the laser polarization. So by combing the tunable orientation with the outstating three-dimensional writing ability allows for the fabrication of almost arbitrary phase elements [2].