Hannover 2013 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 43: Poster II
Q 43.33: Poster
Mittwoch, 20. März 2013, 16:00–18:30, Empore Lichthof
Generation of Functional Structures in Dielectrics on Nanometer Scale via Shaped Femtosecond Laser Pulses — •Nadine Götte1, Cristian Sarpe1, Jens Köhler1, Dirk Otto1, Lars Englert1, Thomas Kusserow2, Tamara Meinl2, Yousuf Khan2, Hartmut Hillmer2, Matthias Wollenhaupt1, and Thomas Baumert1 — 1University of Kassel, Institute of Physics and CINSaT, D–34132 Kassel, Germany — 2University of Kassel, Institute of Nanostructure Technologies and Analytics and CINSaT, D–34132 Kassel, Germany
In our experimental setup temporal shaped infrared femtosecond laser pulses are used for high precision laser processing of wide band gap dielectrics. By applying double pulses with certain interpulse delay or temporal asymmetric pulse trains ablation structures can be generated well below the diffraction limit [1–3].
Here we investigate functional structures on 100 nm scale by direct laser writing to demonstrate the potential for applications in nanophotonics. This includes the fabrication of spectral filters based on Fano resonances.
[1] L. Englert et al. Opt. Express 15, 17855–17862, (2007)
[2] M. Wollenhaupt et al., JLMN, 4, 144–151 (2009)
[3] L. Englert et al., J. Laser Appl., 24, 042002 (2012)