Tags - (3) spin noise spectroscopy

Department(s)/lab(s): Physics | LuMIn - Lasers, Atomic & Quantum Optics (Bretenaker/Goldfarb) @ ENSPS
Summary:

Bretenaker (former LuMIn director) works on laser physics and quantum optics: sub-shot-noise sensing with phase-sensitive-amplifier-generated entangled beams, spin-noise spectroscopy in atomic vapours, EIT slow light, and quantum-limited passive resonant (fiber/bulk) gyroscopes with Thales. In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work represents the fundamental-light and quantum-limited-rotation-sensing side.

Department(s)/lab(s): Physics | LuMIn - Lasers, Atomic & Quantum Optics (Bretenaker/Goldfarb) @ ENSPS
Summary:

Goldfarb studies coherent effects in atomic vapours - EIT and slow light, spin-noise spectroscopy of spin-environment interaction, and EIT-based Rydberg-atom radio-frequency field sensing (electrometry) in warm cells. In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work adds atomic-vapour electrometry and coherence spectroscopy.

Department(s)/lab(s): School of Physics | McCamey Spin Physics and ODMR Laboratory @ UNSW
Summary:

McCamey is, for a candidate coming from NV ensemble sensing, the single most methodologically adjacent PI at UNSW. His laboratory does optically and electrically detected magnetic resonance on spins that are not defects in diamond: photogenerated spin-correlated radical pairs, triplet excitons in organic semiconductors, singlet-fission intermediates, and molecular spin systems. The instrumentation is the same toolkit — pulsed EPR, ODMR, dynamical decoupling, relaxometry — applied to systems where the spin is created by light and reports on chemistry. He directs the UNSW node of ARC Exciton Science. 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 group runs precisely those pulse sequences (Hahn echo, DEER, relaxometry) on a different spin species, and radical-pair spin chemistry is one of the few plausible mechanisms by which biology could be genuinely quantum — which makes this a strong landing spot for someone wanting to keep the NV skill set but change the physical system. Preferred attributes present: sensitivity-limited spin measurement, quantum-biology relevance.