Kinsey Nathaniel
Department of Electrical & Computer Engineering, Virginia Commonwealth University, Richmond, VA, 23284, USA.
Light Sci Appl. 2022 May 20;11(1):148. doi: 10.1038/s41377-022-00846-0.
Refractive index invariably describes the speed at which light passes through materials, and subsequently its perceived momentum. But what happens to these quantities as the index becomes zero? A new work explores this question, highlighting how momentum in near-zero-index materials affects linear optical processes.
折射率始终描述光穿过材料的速度，以及随后其感知到的动量。但是，当折射率变为零时，这些量会发生什么变化呢？一项新的研究探讨了这个问题，强调了近零折射率材料中的动量如何影响线性光学过程。
