1. Integrated Nano Optoelectronics Laboratory, University of Michigan, 4901 Evergreen Rd., Dearborn, MI 48128, USA
2. Energy Institute, University of Michigan, 2301 Bonisteel Blvd., Ann Arbor, MI 48109, USA
3. QunFa Photonics Co., Ltd., 21 Muyang Road, Hanjiang Industrial Area, Yangzhou 225127, China