Hannover 2010 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 21: Poster I
Q 21.91: Poster
Dienstag, 9. März 2010, 16:00–19:00, Lichthof
Purcell effect and light collection from a single emitter inside a diamond nano rod — •Helmut Rathgen1, Birgit Hausmann2, Marko Loncar2, Fedor Jelezko1, Jörg Wrachtrup1, Phil Hemmer1, and Tom Babinec2 — 13. Physikalisches Institut, Uni Stuttgart — 2Laboratory for Nanoscale Optics
We study the emission of light from single NV centers inside diamond nano rods. The rod acts on the emitter in two ways: 1. as an air clad optical fiber with a very high refractive index (n=2.4), resulting in an exceptionally high N.A., thus enabling efficient collection of emitted light 2. The strong optical confinement in radial direction results in an increase of the spontaneous emission rate and Purcell Effect. The device holds promis for a high brightness single photon source operating under ambient conditions, and is suitable for room temperature photonic and quantum information processing applications.