| 摘要 |
<p>A sensor chip capable of reliably combining propagating surface plasmon resonance with localized surface plasmon resonance of metal nanostructures is provided. A sensor chip 11 includes a metal grating 16. The metal grating 16 includes multiple long metal pieces 17 extending in a first direction FD. The long metal pieces 17 are arranged at a pitch smaller than the wavelength of an excitation light. A dielectric layer 18 covers the surface of the metal grating 16. A linear concavo-convex pattern 19 which extends in a second direction SD intersecting the first direction FD is formed on the dielectric layer 18. Metal nanostructures 23 are placed on the surface of the dielectric layer 18.</p> |
