School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA.
Opt Lett. 2009 Nov 15;34(22):3478-80. doi: 10.1364/OL.34.003478.
A well-established, silver fishnet design has been further miniaturized to function as a negative-index material at the shortest wavelength to date (to our knowledge). By studying the transmittance, reflectance, and corresponding numerical simulations of the sample, we report in this Letter a negative refractive index of -0.25 at the yellow-light wavelength of 580 nm.
一个成熟的、银色的鱼网设计已经进一步微型化，在迄今为止（据我们所知）最短的波长下作为负折射率材料工作。通过研究样品的透射率、反射率和相应的数值模拟，我们在这封快报中报告了在 580nm 的黄光波长下的负折射率为-0.25。
