7 research outputs found
Optical quenching and recovery of photoconductivity in single-crystal diamond
We study the photocurrent induced by pulsed-light illumination (pulse
duration is several nanoseconds) of single-crystal diamond containing nitrogen
impurities. Application of additional continuous-wave light of the same
wavelength quenches pulsed photocurrent. Characterization of the optically
quenched photocurrent and its recovery is important for the development of
diamond based electronics and sensing
Noncovalent force spectroscopy using wide-field optical and diamond-based magnetic imaging
A realization of the force-induced remnant magnetization spectroscopy (FIRMS)
technique of specific biomolecular binding is presented where detection is
accomplished with wide-field optical and diamond-based magnetometry using an
ensemble of nitrogen-vacancy (NV) color centers. The technique may be adapted
for massively parallel screening of arrays of nanoscale samples.Comment: 8 pages, 7 figure
Demonstration of diamond nuclear spin gyroscope
We demonstrate operation of a rotation sensor based on the N nuclear
spins intrinsic to nitrogen-vacancy (NV) color centers in diamond. The sensor
employs optical polarization and readout of the nuclei and a radio-frequency
double-quantum pulse protocol that monitors N nuclear spin precession.
This measurement protocol suppresses the sensitivity to temperature variations
in the N quadrupole splitting, and it does not require microwave pulses
resonant with the NV electron spin transitions. The device was tested on a
rotation platform and demonstrated a sensitivity of 4.7
(13 mHz/), with bias stability of 0.4
/s (1.1 mHz).Comment: 6 pages, 4 figures (main text) + 8 pages, 4 figures (supplemental