Highly contrast epi‐surface‐enhanced coherent anti‐Stokes Raman scattering (SECARS) microimages of Au‐nanoparticle‐bound organic reporter molecule distributions at a surface of novel surface‐enhanced Raman scattering (SERS)‐active metamaterial junctions, based on nanoparticles spread over a nanostructured CeO2 faceted dielectric film, deposited on an Al sublayer, were recorded at two‐color picosecond excitation of the surface in the near‐infrared spectral range. For this, a scanning confocal laser‐based micro‐CARS spectrometer was employed. The investigations showed that at Raman resonant laser excitation of the molecules/Au‐NP conjugates immobilized on the surface strong SECARS signals can be generated with laser powers not deteriorating the conjugates. Coupling CARS with the plasmonic metamaterial structures under investigation provided excellent chemical imaging contrast (up to 400) for biochemically relevant 5‐thio(2‐nitrobenzoic acid) and 4‐mercaptophenylboronic acid reporter molecules. Taking into account easy handling and utmost long‐term stability of the investigated metamaterial junction at ambient conditions, it might be considered as a promising perspective for a single‐molecule‐sensitivity surface‐enhanced Raman scattering or SECARS biosensor.

LJ absorption edges of rare earths. R , in RCu& (except for R = La. Ce, Eu. Er and Lu) and in RCu2Ge2 (except for R = La. Ce, Er and Lu) intermetallic compounds are recorded. Shifts in energy of the L? edge in these systems with respect to corresponding rare-earth metal edge position are measured. It is found that the rare-earth ions exist in a trivalent state except for Eu and Yb. The divalent state of Eu in EuCu2GeZ and that of Yb in YbCuzGe2 are established. Shifts in energy of the K absorption edge of Cu in RCuZSi2 and RCu2Ge2 (except for Ho and Lu) are also measured. The present results on the Kedge shifts of Cu in RCu2GeZ and RCu2Si2 are. in general, consistent with the available NMR measurements on the same systems.

By means of CARS interferometric line shape spectroscopy, the temperature dependences of the broadening coefficients for several Q-branch lines of hydrogen molecules under collisions with water molecules were determined in the temperature range 2100 < T < 3500 K.

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Hydrogen Q-branch rotational component line-broadening coefficients for hydrogen-water collisions were determined at 2700 K. For linewidth measurements CARS spectroscopy with a Fabry-Perot interferometer and a multichannel detector was applied. In order to perform these experiments, a high-pressure pulsed hydrogen-oxygen burner with variable and controlled pressure was designed. Temperature measurements inside the burner were performed simultaneously with the help of broadband CARS spectroscopy.