Vibrational relaxation dynamics of the nitrogen-vacancy center in diamond
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2018-06-08 |
| Journal | Physical review. B./Physical review. B |
| Authors | Ronald Ulbricht, Shuo Dong, ĂdĂĄm Gali, Sheng Meng, Zhi-Heng Loh |
| Institutions | Chinese Academy of Sciences, Hungarian Academy of Sciences |
| Citations | 26 |
Abstract
Section titled âAbstractâWe employ a combination of spectrally resolved optical pump-probe spectroscopy and excited-state ab initio molecular dynamics (ESAIMD) simulations to study the ultrafast vibrational relaxation dynamics of the 3E excited state of negatively charged nitrogen vacancy (NVâ) defects. The experimental results reveal vibrational relaxation in the phonon sideband with a time constant of approximately 50 fs, in excellent agreement with the âź40-fs structural equilibration timescale predicted by ESAIMD simulations. The observed ultrafast vibrational energy relaxation implies that dynamical processes triggered by photoexcitation into the phonon sideband of the NVâ center occur primarily in the lowest vibronic level of the 3E state.