Institution: | 1. Department of Physics and Materials Science and Centre for Functional Photonics (CFP), City University of Hong Kong, Kowloon, Hong Kong SAR;2. Department of Physics and Materials Science and Center of Super‐Diamond and Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong SAR;3. Regional Centre of Advanced Technologies and Materials, Faculty of Science, Department of Physical Chemistry, Palacky University in Olomouc, Olomouc, Czech Republic |