[10p-E201-1~19] 3.11 Nanoscale optical science and near-field optics

5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10p-E201-13] Optical rectenna using metamaterial resonator for mid-infrared energy conversion

〇(M2)Yusei Takai¹, Zhen Liu¹, Hiroo Yugami¹, Makoto Shimizu¹ (1.Tohoku Univ.)

Keywords:

Optical rectenna,MIM tunnel diode,thermal radiation

Toward the effective utilization of the large amount of untapped waste heat present in industrial fields, energy-harvesting technologies that convert thermal radiation into electricity are increasingly required. In this study, we fabricated an optical rectenna device using a metal–insulator–metal (MIM) metamaterial resonator, targeting mid-infrared light at 6.1 µm, which is difficult to convert into electricity using conventional PV cells. We proposed a device structure in which the MIM resonator functions as both an antenna and an MIM tunnel diode, and experimentally demonstrated power generation based on the rectenna principle.