Cold Atom-Nanophotonics Integration: Challenges and New Opportunities

Interfacing cold atoms with nanophotonics promises new and potentially scalable quantum applications from quantum nonlinear optics, quantum network, sensing to metrology. Realizing a neutral atom array or ensemble atom trapping on an integrated nanophotonic circuit would enable multiple quantum functionalities packed into one optical chip.

In this webinar hosted by the Integrated Photonics Technical Group, Chen-Lung Hung will discuss the challenges we have overcome during the past few years to realize efficient atom loading, laser cooling, and direct atom trapping on a nanophotonic microring circuit. Dr. Hung will also discuss novel collective effects arising from multiple atoms being super-radiantly driven by a nanophotonic guided mode while simultaneously becoming sub-radiant to free space, with suppressed spontaneous emission due to collective destructive interference. Dr. Hung will then discuss potential new applications with this platform.

Subject Matter Level: Introductory - Assumes little previous knowledge of the topic

What You Will Learn:
• Hybrid atom-nanophotonic quantum devices, laser cooling, and atom trapping

Who Should Attend:
• Researchers and professionals who use measurement in their area of expertise
• Anybody interested in the potential of photonic integrated circuits and their applications

About the Presenter: Chen-Lung Hung from Purdue University

Dr. Chen-Lung Hung received his bachelor’s degree in physics from National Taiwan University in 2003 and a Physics PhD at the University of Chicago in 2011, where he developed an in-situ microscopy technique on two-dimensional atomic quantum gases to study quantum phase transitions and nonequilibrium quantum dynamics. Before joining Purdue in 2015 as a faculty member, he held a postdoctoral fellowship at the California Institute of Technology and developed one of the first photonic crystal atom-photon interfaces for quantum optics. His research directions at Purdue University span from studying out-of-equilibrium many-body physics using atomic quantum gases to interfacing ultracold atoms with integrated nanophotonic circuits for many-body physics with photon-mediated interactions and quantum applications. He is a recipient of the AFOSR Young Investigator Award and the NSF CAREER award.