| Budget Amount *help |
¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2014: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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| Outline of Final Research Achievements |
We demonstrate a negative refractive index metamaterial with high transmission, low reflection, and low loss in the terahertz waveband. The metamaterial with a negative refractive index consists of asymmetrically aligned paired cut metal wires on the front and back of a dielectric substrate. A cyclo-olefin polymer film with copper layers on the front and back is etched. Measurements by terahertz time-domain spectroscopy (THz-TDS) demonstrate a metamaterial with a negative refractive index of -4.2+j0.17, high transmitted power of 81.5%, low reflected power of 4.3%, and a high figure of merit (FOM) of 24.2 at 0.42 THz.
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