1. State Key Lab of Modern Optical Instrumentation College of Optical Science and Engineering Zhejiang University Hangzhou 310027 P. R. China
2. Center for High Pressure Science and Technology Advanced Research Beijing 100094 P. R. China
3. School of Materials Science and Engineering Zhejiang University Hangzhou 310027 P. R. China
4. CAS Center for Excellence in Ultra‐intense Laser Science Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai 201800 P. R. China