Abstract
The collection efficiency of light from a point-like emitter may be extremely poor due to aberrations induced by collection optics and the emission distribution of the source. Analyzing the aberrant wavefront (e.g., with a Shack-Hartmann sensor) and correcting accordingly can be infeasible on the single-photon level. We present a technique that uses a genetic algorithm to control a deformable mirror for correcting wavefront aberrations in single-photon signals from point emitters. We apply our technique to both a simulated point source and a real InAs quantum dot, achieving coupling increases of up to 50x00025; and automatic reduction of system drift.
Original language | English |
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Pages (from-to) | 18629-18642 |
Number of pages | 14 |
Journal | Optics Express |
Volume | 25 |
Issue number | 16 |
Early online date | 25 Jul 2017 |
DOIs | |
Publication status | Published - 7 Aug 2017 |
Keywords
- Quantum optics
- Active or adaptive optics