Multiple-photon excitation of nitrogen vacancy centers in diamond
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2018-04-17 |
| Journal | Physical review. B./Physical review. B |
| Authors | Peng Ji, Ryan Balili, Jonathan Beaumariage, Shouvik Mukherjee, David W. Snoke |
| Institutions | University of Pittsburgh |
| Citations | 20 |
Abstract
Section titled āAbstractāWe report the first observation of multi-photon photoluminescence excitation\n(PLE) below the resonant energies of nitrogen vacancy (NV) centers in diamond.\nThe quadratic and cubic dependence of the integrated fluorescence intensity as\na function of excitation power indicate a two-photon excitation pathway for the\nNV- charge state and a three-photon process involved for the neutral NV0 charge\nstate respectively. Comparing the total multi-photon energy with its\nsingle-photon equivalent, the PLE spectra follows the absorption spectrum of\nsingle photon excitation. We also observed that the efficiency of\nphotoluminescence for different charge states, as well as the decay time\nconstant, was dependent on the excitation wavelength and power.\n