[18p-E17-1~20] 4.5 THz technology

△ [18p-E17-7] Focusing Effect Measurement of Terahertz Wave by Three-dimensional Concave Lens Composed of Metal Hollow Slit Array with Effective Refractive Index n=0.5

^○Tatsuya Kimura¹, Hideaki Kitahara², Keisuke Takano², Masanori Hangyo², Mamoru Mita³, Takahisa Togashi¹, Takehito Suzuki¹ (Ibaraki Univ.¹, Oosaka Univ.², M&M Reserarch Labratory³)

Keywords:テラヘルツ,メタマテリアル