Swift, G. P., Gallant, A. J., Dai, D., Kaliteevski, M. A., Brand, S., Zeze, D. A., …Chamberlain, J. M. (2008). Negative refracting materials at THz frequencies. In Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves: 15-19 September 2008, Pasadena, California (496-497). https://doi.org/10.1109/icimw.2008.4665668