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Published on: October 13, 2017
Microcavities: tailoring the optical properties of single quantum emitters
Sebastian Bär1, Alexey Chizhik, Raphael Gutbrod
1Institute of Physical and Theoretical Chemistry, Eberhard Karls University, 72076, Tübingen, Germany. sebastian.baer@uni-tuebingen.de
Analytical and Bioanalytical Chemistry
|November 13, 2009
Summary
Researchers reviewed microresonator structures for analytical methods. A tunable Fabry-Perot microresonator modified quantum emitter properties and enabled precise positioning, with applications in biological Förster resonant energy transfer (FRET) studies.
Area of Science:
- Optics and Photonics
- Quantum Optics
- Nanotechnology
Background:
- Microresonators offer unique optical properties for manipulating quantum emitters.
- Tailoring microresonator structures is key for advanced analytical devices.
- Fabry-Perot microresonators provide tunable optical modes.
Purpose of the Study:
- To review microresonator structures for analytical applications.
- To investigate the use of a tunable lambda/2-Fabry-Perot-type microresonator.
- To demonstrate the modification of quantum emitter optical properties and FRET efficiency.
Main Methods:
- Utilized a tunable lambda/2-Fabry-Perot-type microresonator.
- Varied mirror distance to alter electromagnetic field mode structure.
- Employed excitation patterns with a radially polarized doughnut mode laser beam.
- Applied the resonator to a biological system (DsRed protein).
Main Results:
- Demonstrated modification of optical properties of embedded quantum emitters by altering radiative coupling.
- Achieved longitudinal position determination of emitters with lambda/60 accuracy.
- Showcased modification of Förster resonant energy transfer (FRET) efficiency in a single DsRed protein.
Conclusions:
- Tunable microresonators are effective for tailoring quantum emitter properties.
- The developed resonator enables precise positioning of nano-sized emitters.
- Microresonator technology has significant potential in biological sensing and analysis, including FRET studies.
