| Budget Amount *help |
¥19,890,000 (Direct Cost: ¥15,300,000、Indirect Cost: ¥4,590,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
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| Outline of Final Research Achievements |
This research aimed to understand develop applications of the non-linear electromagnetic phenomena in metamaterials and develop the electromagnetic applications. Broadband terahertz pulses are generated from metallic nanostructures irradiated with intense ultra-short laser pulses. In this study, it is revealed that the tunneling current driven by intense laser fields enhanced by the nanostructures is the source of the broadband terahertz pulses. The broadband terahertz waves can be extremely confined and absorbed in the metallic self-complementary checkerboard patterns. The quantum conductance is observed in the metallic nanoparticles, in which the atomic movements are driven by the terahertz pulses confined in the vicinity of the metallic structures.
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