Ultrafast spectroscopy with infrared plasmonics
Satoshi ASHIHARA1, Fumiya KUSA2, Ikki MORICHIKA1, Atsunori SAKURAI1
Resonances of molecular/lattice vibrations exist in the infrared wavelength range. The vibrational spectrum, which is called the fingerprint of matter, is useful for structural analysis and the identification of matter. Therefore infrared spectroscopy has been widely used in the fields of materials science, chemistry, and life science. Although infrared spectroscopy may seem well established, there still is the potential to make further dramatic progress, by introducing new light sources and/or novel optical technologies. We developed a method to measure the structure and dynamics of molecules with ultrahigh sensitivity and surface selectivity, by introducing an ultrashort pulsed laser and plasmonics. In this paper, we present our recent attempts at surface enhanced - ultrafast vibrational spectroscopy.
- 1 Institute of Industrial Science, The University of Tokyo
- 2 Department of Applied Physics, Faculty of Engineering, Tokyo University of Agriculture and Technology