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Q: Fachverband Quantenoptik und Photonik
Q 63: Photonics IV
Q 63.2: Talk
Friday, March 22, 2013, 14:15–14:30, F 128
High Aspect Ratio Micro-Rod Arrays as 2D Photonic Crystal Structures — •Christian Kraeh1, Markus Schieber2, Alexandru Popescu2, Harry Hedler2, Martin Zeitlmair1, and Jonathan Finley1 — 1Walter Schottky Institut, Technische Universität München, 85748 Garching — 2Siemens AG, Corporate Technology, 81739 München
We are developing novel photonic crystal structures made of high aspect ratio micro-rod arrays. The fabrication of these rods is based on the creation of macroporous Si by a wet-chemical etching technique and subsequent filling of the pores and selective etching of the Si substrate. Due to their high aspect ratio the rods exhibit almost ideal 2D optical properties. Simulations show that they can be used as optical bandgap materials.
A potential application of these structures is a photonic crystal based gas detection system in which the photonic crystal is used to reduce the optical absorption path.