[12a-S421-1~11] 3.9 Terahertz technologies

[12a-S421-2] Ultra-trace sensing of solutions using terahertz-microfluidic chip with a few arrays of asymmetric meta-atoms

〇Kazunori Serita¹, Hironaru Murakami¹, Iwao Kawayama¹, Masayoshi Tonouchi¹ (1.ILE, Osaka Univ.)

Keywords:Terahertz, nonlinear optical crystal, metamaterial

We report on a nonlinear optical crystal-based terahertz (THz)-microfluidic chip with a few arrays of asymmetric meta-atoms, an elementary unit of metamaterials, for the measurement of ultra-trace amounts of solutions. By utilizing the near-field interaction amoung solutions, asymmetric meta-atoms and the local emission of THz light source that is generated by irradiating fs pulse laser beam, we showed that the chip can detect attmol order of solute in less than 100 pL volume of the solution.