Michler's IHFG grows and studies semiconductor quantum dots as on-demand single- and entangled-photon sources, including telecom-band emitters, on-chip Hanbury-Brown-Twiss/photonic integration, and atom-QD hybrid interfaces - core fundamental-light and quantum-photonic-sensing resources. Cleanroom epitaxy on site. In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work supplies nonclassical light sources that can enhance optical sensing.
Mulvaney directs the ARC Centre of Excellence in Exciton Science and runs Melbourne's nanoscience laboratory. The group's distinctive capability is single-particle and single-emitter optical spectroscopy: photon-antibunching and blinking statistics from individual quantum dots and perovskite nanocrystals, photothermal and dark-field spectroscopy of individual metal nanoparticles, and the electrochemical control of single-nanocrystal charge state. Applications run from LEDs and solar cells to quantum-dot probes for single-particle tracking in cells. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — his single-emitter photon-statistics measurements share the shot-noise-limited photon-counting methodology of NV-ensemble ODMR readout, and the group's nanocrystal probes are direct competitors/complements to nanodiamond in cellular sensing. Large, well-resourced group.
Ruth Oulton's group works on quantum photonics using solid-state single-photon emitters. Research: (1) semiconductor quantum dot single-photon sources — cavity-enhanced emission, photonic crystal integration; (2) hBN defect spin-photon interfaces; (3) integrated quantum photonics for sensing and quantum networks. The group focuses on device-quality semiconductor photonic systems for quantum information and sensing applications.
Pascale Senellart's group at C2N develops the world's most efficient and bright quantum dot single-photon sources. Research: (1) high-efficiency single-photon emitters based on semiconductor quantum dots in micropillar cavities — up to 99% efficiency, >98% photon purity; (2) entangled photon pair sources; (3) photonic integrated circuits for quantum information and sensing. Coordinator of Quantum-Saclay ecosystem; co-founder of Quandela (quantum photonics spinoff). Key for quantum sensing with non-classical light.
Utzat studies the quantum optical properties of single colloidal quantum dots and perovskite nanocrystals, using photon-correlation spectroscopy to characterize and improve their performance as solid-state single-photon sources for quantum photonic applications. The group is actively recruiting postdocs.