92 citations · 175 across the 4 of their papers we have counts for
4 papers
Multiple-photon excitation of nitrogen vacancy center in diamond
Peng Ji, Ryan B. Balili, Jonathan Beaumariage +3
We report the first observation of multi-photon photoluminescence excitation (PLE) below the resonant energies of nitrogen vacancy (NV) centers in diamond. The quadratic and cubic…
Cooling the Motion of Diamond Nanocrystals in a Magneto-Gravitational Trap in High Vacuum
Jen-Feng Hsu, Peng Ji, Charles W. Lewandowski +1
Levitated diamond nanocrystals with nitrogen-vacancy (NV) centres in high vacuum have been proposed as a unique system for experiments in fundamental quantum mechanics, including t…
Charge state dynamics of the nitrogen vacancy center in diamond under 1064 nm laser excitation
Peng Ji, M. V. Gurudev Dutt
The photophysics and charge state dynamics of the nitrogen vacancy (NV) center in diamond has been extensively investigated but is still not fully understood. In contrast to previo…
Loading an Optical Trap with Diamond Nanocrystals Containing Nitrogen-Vacancy Centers from a Surface
Jen-Feng Hsu, Peng Ji, M. V. Gurudev Dutt +1
We present a simple and effective method of loading particles into an optical trap in air at atmospheric pressure. Material which is highly absorptive at the trapping laser wavelen…