On-Chip Generation, Routing, and Detection of Resonance Fluorescence
Abstract
Semiconductor based photonic information technologies are rapidly being pushed to the quantum limit where non-classical states of light can be generated, manipulated and exploited in prototypical quantum optical circuits. Here, we report the on-chip generation of quantum light from individual, resonantly excited self-assembled InGaAs quantum dots, efficient routing over length scales $\geq 1$ mm via GaAs ridge waveguides and in-situ detection using evanescently coupled integrated NbN superconducting single photon detectors fabricated on the same chip. By temporally filtering the time-resolved luminescence signal stemming from single, resonantly excited quantum dots we use the prototypical quantum optical circuit to perform time-resolved excitation spectroscopy on single dots and demonstrate resonant fluorescence with a line-width of $10 \pm 1 \ \mu$eV; key elements needed for the use of single photons in prototypical quantum photonic circuits.
- Publication:
-
Nano Letters
- Pub Date:
- August 2015
- DOI:
- 10.1021/acs.nanolett.5b01444
- arXiv:
- arXiv:1408.2275
- Bibcode:
- 2015NanoL..15.5208R
- Keywords:
-
- Condensed Matter - Mesoscale and Nanoscale Physics;
- Physics - Optics
- E-Print:
- Nano Letters 15, 5208 (2015)