Controlling emitter-field coupling in waveguides with a nanomechanical phase shifter
- URL: http://arxiv.org/abs/2503.01014v1
- Date: Sun, 02 Mar 2025 20:45:40 GMT
- Title: Controlling emitter-field coupling in waveguides with a nanomechanical phase shifter
- Authors: Celeste Qvotrup, Ying Wang, Marcus Albrechtsen, Rodrigo A. Thomas, Zhe Liu, Sven Scholz, Arne Ludwig, Leonardo Midolo,
- Abstract summary: controllable coupling between a quantum dot and an optical mode in a waveguide using a nano-opto-electro-mechanical phase shifter and a photonic crystal mirror.<n>We observe a broadband tuning of the spontaneous emission rate and a modulation of the intensity emitted by the quantum dot in the waveguide.
- Score: 5.129407305640757
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The ability to control light-matter interfaces with solid-state photon emitters is a major requirement for the development of quantum photonic integrated circuits. We demonstrate controllable coupling between a quantum dot and an optical mode in a dielectric waveguide using a nano-opto-electro-mechanical phase shifter and a photonic crystal mirror. By controlling the phase, we induce a virtual displacement of the mirror that modifies the local density of states at the position of the emitter, thereby enhancing or suppressing spontaneous emission without an optical cavity. We observe a broadband tuning of the spontaneous emission rate and a modulation of the intensity emitted by the quantum dot in the waveguide. The method reported here could be employed to optimize the emitter-field interaction between quantum dots in-operando, by maximizing a single-photon source generation rate or adjusting its lifetime, as well as a characterization tool for the direct measurement of emitter-photon cooperativity.
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