Long-Infrared Passive Near-field Spectroscopic Imaging

Local phenomena of materials generate strongly localized electromagnetic wave, called thermally excited evanescent waves, in the long-wavelength infrared spectra range. In order to directly detect the spectroscopic information of the thermally excited evanescent wave, we have developed passive near-field optical spectroscopy (SNOS) based on grating-based spectroscopy. Using the passive SNOS, we ac...