Abstract: 

Half of the 2018 Nobel Prize in Physics has been awarded to Arthur Ashkin for the invention of optical tweezers. Based on its principle of optical gradient force, nanoscale optomechanics has become an important sub-field of photonics. On the other hand, microelectromechanical systems (MEMS) has achieved great success in applications, and the nanoelectromechanical systems (NEMS) is the next miniaturization step from the MEMS. In our researches, we successfully integrated the NEMS and the optomechanical cavities together and demonstrated the relevant optomechanical effects. These devices have potential applications in inertial sensing, such as accelerometer and quantum compass.

In active component aspect, we studied dynamic optomechanical modulation of two-level quantum emitters via the cavity quantum electrodynamics (QED) effect. This is a brand-new field, which combines cavity QED with optomechanics. Our result will inspire experimental ways of studying tripartite interactions between quantum emitters, optical cavity and mechanical oscillator.

Bio:

 Dr. Tian Feng obtained his PhD from Department of Optical Science and Engineering, Zhejiang University in 2010. From 2010 to 2014, he worked as a research fellow in Micro/Nano System Initiative, National University of Singapore, and led the project of hybrid system of NEMS and PhC cavities. Since 2015, he worked as a research associate in NTT Basic Research Laboratories and was in charge of the project of hybrid optomechanical cavity QED systems.