A5.3 - Surface acoustic wave hybrid devices: High sensitivity conductivity probes and low-jitter single photon sources
- Event
- AMA Conferences 2013
2013-05-14 - 2013-05-16
Nürnberg - Band
- Proceedings SENSOR 2013
- Chapter
- A5 - Mircoacoustic Sensors
- Author(s)
- H. Krenner, D. Fuhrmann, S. Völk, F. Schülein, F. Knall, J. Ebbecke, A. Wixforth - Universität Augsburg (Germany)
- Pages
- 117 - 120
- DOI
- 10.5162/sensor2013/A5.3
- ISBN
- 978-3-9813484-3-9
- Price
- free
Abstract
We employ surface acoustic waves to probe and manipulate optically active nanosystems. We demonstrate that the attenuation of a SAW provides a high sensitivity probe of the electrical conductivity by measuring the persistent photoconductivity in a multi quantum well structure. Moreover we apply SAW to dissociate photogenerated electron-hole pairs and by acoustic transport convey these at the speed of sound over macroscopic distances to a remote quantum emitter. After inherently sequential injection of electrons and holes, excitons are formed in these artificial atoms which recombine and emit single photons. Our SAW-based approach provides a low-jitter acoustically pumped single photon source with programmable exciton configuration.