Publications by authors named "Gary R Lander"
Article Synopsis
- The study explores a novel method for high-resolution pressure sensing using nitrogen-vacancy (NV) centers in diamond, which takes advantage of solid-state electronic spins.
- By applying density functional theory (DFT) and theoretical modeling, researchers investigate how stress affects the electronic properties of a diamond supercell containing a single NV center, predicting high sensitivity in pressure detection up to 0.3 MPa/Hz.
- The findings suggest that this quantum sensing approach could outperform traditional optical techniques and have potential applications in subsurface monitoring, superconductivity studies, and various material sciences.
The ability to perform simultaneous resonant excitation and fluorescence detection is important for quantum optical measurements of quantum dots (QDs). Resonant excitation without fluorescence detection - for example, a differential transmission measurement - can determine some properties of the emitting system, but does not allow applications or measurements based on the emitted photons. For example, the measurement of photon correlations, observation of the Mollow triplet, and realization of single photon sources all require collection of the fluorescence.
View Article and Find Full Text PDFResonant photoluminescence excitation (RPLE) spectra of a neutral InGaAs quantum dot show unconventional line shapes that depend on the detection polarization. We characterize this phenomenon by performing polarization-dependent RPLE measurements and simulating the measured spectra with a three-level quantum model. The spectra are explained by interference between fields coherently scattered from the two fine structure split exciton states, and the measurements enable extraction of the steady-state coherence between the two exciton states.
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