Recording and research of absorption in wide spectral range (UV-FIR), Raman scattering spectra and chemical image of the surfaces
- Unit: Faculty of Physics
- Keywords: Absorption in wide spectral range, UV-FIR, Raman scattering spectrum, chemical image of surfaces
1. Recording of permeability (absorption) spectra of liquid samples in the UV-NIR range and qualitative and quantitative spectral analysis of such samples. Determination of reflection coefficients of mirror surfaces in the UV-NIR range.
2. Formation of chemical image of the surfaces, using infrared absorption spectra.
3. Recording of permeability (absorption) spectra of liquid samples in the MIR range and qualitative and quantitative analysis of such samples.
4. Recording of ATR spectra of solid and liquid samples and qualitative and quantitative analysis of such samples.
5. Recording and analysis of high spectral resolution IR absorption spectra of samples, isolated in solid matrices, and gaseous samples.
6. Recording of Raman spectra of fluorescent samples, using 785 nm and 1015 nm radiation of NIR lasers for excitation, and qualitative and quantitative analysis of such samples. Chemical imaging of surfaces, using Raman spectra.
7. Recording of Raman scattering spectra of the samples, using dispersion spectrometer with 488 nm and 514,5 nm for excitation.
8. Measurement of complex permeability coefficient in the FIR area of thin dielectric plates.
Application.
1. Qualitative and quantitative analysis. Determination of the quantity of impurities. Determination of materials. Determination of reflection coefficients of mirror surfaces.
2. Chemical imaging of surfaces. Research of chemical structure and morphology of the samples.
3. Qualitative and quantitative analysis. Determination of the quantity of impurities.
4. Qualitative and quantitative analysis. Determination of the quantity of impurities.
5. Conformational analysis. Research of energetic characteristics of molecular processes. Research of isolated molecules and their interaction. Research of temperature dependencies of materials' spectra.
6. Chemical imaging of surfaces. Research of Raman scattering spectra of fluorescent samples. Gem quality determination. Identification of allotropic carbon nanostructures.
7. Qualitative and quantitative analysis. Determination of the quantity of impurities. Crystal quality testing using phonon bands.
8. Research of optical properties of the materials.
Contacts:
Justinas Čeponkus
tel. +370 65011760
Sandra Tamošaitytė
tel. +370 60030463
Milda Pučetaitė
tel.+370 63653865
Valdas Šablinskas
tel. +370 68576825