Peng Ji Received his Ph.D. degree 

Peng Ji was a graduate student at Gurudev Dutt's group. This spring he has succefully passed his Ph.D. defense. 

On Thursday, April 26, 2018 he attended the commencement ceremony  t the John M. and Gertrude E. Petersen Events Center to receive his degree.

His research involved optical trapping diamond nanocrystal in air and vacuum.

The spin property of Nitrogen Vacancy (NV) center in diamond could be potentially coupled with the mechanical motion of a trapped diamond and create “cat state” for nano-sized particle. The passive Magneto-gravitational trap is another candidate to realize “cat state”.

The spin properties of NV center have been used for sensing the temperature and magnetic field strength in the trapping regions. My research direction also includes single- and multiple-photon-induced charge state flipping in between negatively charged NV center and its neutral state, which help understand the location of NV energy levels in diamond band gap. The spin dependence of charge flipping procedure is one promising method in realizing single-shot spin measurement.

Congratulations Dr. Peng Ji!