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Q: Fachverband Quantenoptik und Photonik

Q 30: Poster: Photonics, laser development and applications, ultrashort laser pulses, quantum effects

Q 30.35: Poster

Dienstag, 18. März 2014, 16:30–18:30, Spree-Palais

Fabrication and Characterization of Photonic Structeres in diamond — •Hardy Schauffert¹, Luca Marseglia², Fedor Jelezko¹, and Christine Kranz¹ — ¹Universität Ulm — ²Massachusetts Institute of Technology

We are presenting our latest results about "`Fabrication and Characterization of Photonic Structeres in diamond"'. Photonic Structeres are a promizing candiate for producing single-photon sources and enhancing read out times of single color centers in diamond. Herefor we designed and simulated photonic crystal cavities with resonances for silicon vacency center and archived quality factors of 60000 with a 2-dimensional hexagonal photonic stuctures and 500000 with a nanobeam design with small modul volumes and so possible structures for the strong coupling regime. In the next step we archived the production of thin clean diamond membran with thicknesses about 250 nm using focus ion beam milling and chemical treatment with an potassium nitrat-sulfuric acid mixture with shows a nice reducing of background emitting. We also want to show the remove of gallium deposition in the surface via plasma etching and postproduction tuning of the resonance frequency.