Course description:
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The lecture covers main problems of emission and absorption spectroscopy in the gas phase. Theoretical as well practical aspects are considered. The main topics are as follows: energetical and photometrical units for electromagnetic field characterization, transport equation of radiation; thermal (black body) and non-equilibrium radiation;
sources of radiation used in UV, VIS and IR spectroscopy; radiation-matter interaction, refraction of light; anomaly dispersion, Einstein’s coefficients and oscillator strength; spectral and apparatus line profiles: natural, Doppler and collision broadenings; Voigt profile; absorption techniques; high sensitivity absorption (CRDS - Cavity Ring Down Spectroscopy); electronic spectra of diatomic molecules (rotational structure); spectroscopic diagnostics of plasmas, different types of lasers (e.g., chemical lasers), monitoring of atmosphere by lasers (LIDARs - Light Detection and Ranging).
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