Patent ID: 8304732
Filing Date: 2012-11-06
Classification: G01N

Abstract:
1. A measuring method comprising: applying a linearly-polarized electromagnetic wave to a surface of a periodic structure holding a specimen to be measured, the linearly-polarized electromagnetic wave being applied to the surface of the flat-plate periodic structure from a direction perpendicular to the surface; detecting an electromagnetic wave scattered forward or backward by the periodic structure; and measuring characteristics of the specimen based on a change in a dip waveform appearing in a frequency characteristic of the forward-scattered electromagnetic wave or a peak waveform appearing in a frequency characteristic of the backward-scattered electromagnetic wave, wherein the dip waveform appearing in the frequency characteristic of the forward-scattered electromagnetic wave or the peak waveform appearing in the frequency characteristic of the backward-scattered electromagnetic wave is generated by TE11 mode-like resonance in the periodic structure.