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Kondo-Resonance Mediated Metal-Insulator Transition in GaAs Embedded with Erbium Arsenide Quantum Dots
W-D. Zhang, E. R. Brown, A. D. Feldman +2
We report anomalous critical transport behavior in a GaAs structure containing a dense array of ErAs quantum dots. The structure displays a voltage (electric field)-controlled insu…
Direct observation of nanofabrication influence on the optical properties of single self-assembled InAs/GaAs quantum dots
Jin Liu, Kumarasiri Konthasinghe, Marcelo Davanco +11
Single self-assembled InAs/GaAs quantum dots are a promising solid-state quantum technology, with which vacuum Rabi splitting, single-photon-level nonlinearities, and bright, pure,…
Maximizing waveguide integration density with multi-plane photonics
Jeff Chiles, Sonia Buckley, Nima Nader +3
We propose and experimentally demonstrate a photonic routing architecture that can efficiently utilize the space of multi-plane (3D) photonic integration. A wafer with three planes…
UV superconducting nanowire single-photon detectors with high efficiency, low noise, and 4 K operating temperature
Emma E. Wollman, Varun B. Verma, Andrew D. Beyer +7
For photon-counting applications at ultraviolet wavelengths, there are currently no detectors that combine high efficiency (> 50%), sub-nanosecond timing resolution, and sub-Hz dar…
Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy
Nima Nader, Daniel L. Maser, Flavio C. Cruz +9
Infrared spectroscopy is a powerful tool for basic and applied science. The molecular spectral fingerprints in the 3 um to 20 um region provide a means to uniquely identify molecul…
All-silicon light-emitting diodes waveguide-integrated with superconducting single-photon detectors
Sonia Buckley, Jeffrey Chiles, Adam N. McCaughan +6
We demonstrate cryogenic, electrically-injected, waveguide-coupled Si light-emitting diodes (LEDs) operating at 1.22 m. The active region of the LED consists of W centers implan…