Analysis and design of concave lens with metallic slit array for terahertz wave band

Authors :: Kotaro Murai
Hiroki Yonamine
Takuya Konno
Takehito Suzuki
Keisuke Takano
Masanori Hangyo
John C. Young
Hideaki Kitahara
Fumiaki Miyamaru
Source :: Applied Physics A. 115:495-500
Publication Year :: 2013
Publisher :: Springer Science and Business Media LLC, 2013.
Abstract: This paper presents a three-dimensional concave lens constructed from a metallic slit array. The effective refractive index is estimated to be \(0

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