图片来源:Steven Louie | Sarah E. Biehn & Steffen Lindert, Nature Communications (2021) | Zhijun Ning, Nature(2015) |文山蔡Uday K. Chettiar, Alexander V. Kildishev & Vladimir M. Shalaev, Nature Photonics (2007) | jvphoto / Alamy Stock Photo。
自然材料(Nat。板牙。)石头1476 - 4660(在线)石头1476 - 1122(印刷)