Heidelberg 2015 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 66: Photonics I
Q 66.3: Talk
Friday, March 27, 2015, 11:45–12:00, B/gHS
3D printing of sub-micrometer free-form optics on fiber tips — •Timo Gissibl1, Michael Schmid1, Simon Thiele2, Michael Thiel3, Alois Herkommer2, and Harald Giessen1 — 14th Physics Institute and Research Center SCoPE, Stuttgart, Germany — 2Institute for Applied Optics and Research Center SCoPE, Stuttgart, Germany — 3Nanoscribe GmbH, Eggenstein-Leopoldshafen, Germany
Optical elements enable wavefront shaping, intensity distribution modification, and polarization control. Therefore, miniaturized optical elements with sub-micrometer feature size that provide the possibility to build integrated optical devices are necessary to extend the field of applications. We demonstrate the capability of three-dimensional dip-in multiphoton laser lithography that enlarge fabrication of sub-micrometer diffractive, reflective, and refractive optical components, as well as free-form optics and Fresnel phase plates directly on the end facet of a single mode optical fiber. With this approach one can specifically shape the intensity distribution directly at the output of an optical fiber by diffractive and refractive elements. Furthermore, the polarization of light can be influenced by structures such as photonic crystals. Our approach is even suitable for the combination of optical elements, characterized by a high resolution of the fabricated polymer structure, and refractive elements with strict requirements for the smoothness and the surface shape. This work will pave the way towards ultra-small endoscopes as well as beam shaping elements directly on LED emitters for future lighting applications.