1. Center for Micro‐Photonics Swinburne University of Technology Hawthorn VIC 3122 Australia
2. Centre for Translational Atomaterials Swinburne University of Technology Hawthorn VIC 3122 Australia
3. Department of Physics City University of Hong Kong 83 Tat Chee Avenue Hong Kong SAR 999077 China
4. Xi'an Institute of Optics and Precision Mechanics Chinese Academy of Sciences Xi'an 710119 China
5. INRS‐Énergie Matériaux et Télécommunications 1650 Boulevard Lionel‐Boulet Varennes Québec J3X 1S2 Canada