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Primary thermometry triad at 6 mK in mesoscopic circuits
Quantum physics emerge and develop as temperature is reduced. Although mesoscopic electrical circuits constitute an outstanding platform to explore quantum behaviour, the challenge in cooling the electrons impedes their potential. The strong coupling of such micrometre-scale devices with the …
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Bi-periodic nanostructured waveguides for wavelength-selectivity of hybrid photonic devices
A bi-periodic nanostructuration consisting of a super-periodicity added to a nanohole lattice of sub-wavelength pitch is demonstrated to provide both modal confinement and wavelength selectivity within a hybrid III-V on Silicon waveguide. The wavelength selective behavior stems from finely-tuned …
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Exchange interaction-driven dynamic nuclear polarization in Mn-doped InGaAs/GaAs quantum dots
The optical spin orientation and subsequent dynamic nuclear polarization (DNP) in individual self-assembled InGaAs/GaAs quantum dots doped by a single Mn atom is shown to be strongly perturbed by the exchange interaction between a photo-created electron and the spin …
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Efficient light trapping in ultrathin silicon solar cells
Ultrathin c-Si solar cells have the potential to drastically reduce costs by saving raw material, while maintaining good efficiencies thanks to the excellent quality of monocrystalline silicon. However, efficient light trapping strategies must be implemented to achieve high short-circuit …
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Microdisk lasers on silicon operating in deep ultraviolet
References: Deep-UV nitride-on-silicon microdisk lasers, J. Sellés, C. Brimont, G. Cassabois, P. Valvin, T. Guillet, I. Roland, Y. Zeng, X. Checoury, P. Boucaud, M. Mexis, F. Semond & B. Gayral Scientific Reports (2016) / DOI : https://doi.org/10.1038/srep21650 …
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