Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics III
Q 62.56: Poster
Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer
Photonic structures for manipulation of rare-earth ions in thin films — •Bruno Villa1, Roman Kolesov1, Kangwei Xia1, Rolf Reuter1, Gunther Richter2, Andrej Denisenko1, Seyed Ali Momenzadeh1, and Jörg Wrachtrup1 — 13. Physikalisches Institut, Universität Stuttgart, Germany — 2Max Planck Institut for Intelligent Systems, Germany
Single rare-earth ions in YAG are attractive candidates for quantum information processing due to inherent properties, foremost of which is the shielding of the optically active 4f electrons by higher orbitals. Previous work in this group has demonstrated detection and addressing of single Ce3+ ions in YAG crystals, albeit with low detection efficiency related to the radiative lifetime.
In an effort to enhance the zero phonon line emission and demonstrate cavity quantum electrodynamics on this system, amorphous TiO2 whispering gallery mode resonators were fabricated on the crystals. Film quality is of utmost importance for figures of merit such as the propagation losses and quality factors of the resonators. Hence, different deposition and patterning methods were tried out. The simulation, fabrication and characterization of these devices is presented.