Quantum Optics Seminar by M. Sumetsky – Niels Bohr Institute - University of Copenhagen

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Quantum Optics Seminar by M. Sumetsky

An optical bottle microresonator is a high Q-factor resonator fabricated by the local variation of the optical fibre radius. It confines whispering gallery modes propagating along the fibre surface. The propagation of these modes along the fibre axis can be so slow that they can be governed by extremely small nanoscale changes of the optical fibre radius. This phenomenon is exploited in SNAP (Surface Nanoscale Axial Photonics), a new
platform for fabrication of miniature super-low-loss photonic integrated circuits with unprecedented sub-angstrom precision. Complex SNAP bottle resonators are considered. Theory and experimental demonstration of resonators with predetermined fibre radius variation and spectrum, including coupled microresonator structures, are presented. Applications of SNAP bottle resonators in telecommunication and atomic physics are discussed