Abstract

    Light is fundamental in physics. Seeking the possibility of controlling the light has great importance for the modern science and engineering. In this talk, I will discuss the effect of quantum coherence from atomic transitions in the light-matter interaction, during a variety of processes of novel light source generations. I will first talk about the coherence-brightened oxygen lasing in air, which triggers many related researches towards the remote sensing. Then, I will theoretically show the possibility of transient lasing without inversion, where the coherence plays an important role. I will end my talk with discussing a previously unexplored route towards creating the synthetic space by using quantum coherence in nonlinear materials, which highlights an important connection between nonlinear optics and topological photonics. The capability for manipulating the light with quantum coherence provides novel potential applications in the field of quantum optics.

                                                                                    Biography

Luqi Yuan is a Tenure-track Associate Professor (Distinguished Researcher) in School of Physics and Astronomy at Shanghai Jiao Tong University since 2018. He was a postdoctoral scholar with Prof. Shanhui Fan in the Edward L. Ginzton Laboratory at Stanford University. He received his Ph.D. from Texas A&M University with Prof. Marlan O. Scully in 2014, prior to which he obtained his B.S. in Applied Physics and M.S. in Optics from Shanghai Jiao Tong University. His research interests focus on the theoretical study of photonics and quantum optics, targeting towards manipulating the light and exploring novel optical phenomena. He has published over 40 refereed journal articles including Phys. Rev. Lett., Optica, Phys. Rev. X, Nat. Commun., Light Sci. Appl.