MINICURSO SOBRE ESPECTROSCOPIA NO INFRAVERMELHO COM APLICAÇOES A QUIMICA, BIOLOGIA E FISICA

N. E. MASSA,

Laboratorio Nacional de Luz Sincrotron

Jornada; minicurso; 2007

Laboratorio Nacioanl de Luz Sincrotron

MINICURSO SOBRE ESPECTROSCOPIA NO INFRAVERMELHO COM APLICAÇOES A QUIMICA, BIOLOGIA E FISICA Nestor E. Massa Laboratorio Nacional de Investigacion y Servicios en Espectroscopia Optica Universidad Nacional de La Plata / Argentina FIRST DAY Principles, wave equation, optical functions, infrared absorption, overtones, isotopic effect, normal reflectivity, electronic transitions. The Kramers-Krönig relations, absorption coefficient, the oscillator picture, multioscillator fit, ellipsometry, acquisition of an infrared spectrum, the infrared spectrum. SECOND DAY Applications of IR spectroscopy, phenomenological theory for phonon activity in polar ionic crystals, transverse and longitudinal optical split (Lyddane-Sachs-Teller (LST) relation), polariton dispersion relations , phonons and plasma. Drude model for metals, interband excitations, electronic transition, Hagen-Rubens relation. The interferometer, acquisition of an infrared spectrum, sources, why use a synchrotron for IR, IR spots sizes, detectors overview, IR materials, IR absorption by gases, IR absorption by liquids, solids: sampling techniques in transmission and reflection, cryostats, attenuated total reflectance (ATR), diffuse reflectance , infrared spectroscopy in microbiology, IR of microorganisms, IR in living cells, single red blood cells, proteins, lipids, nucleic acids, carbohydrates. 10 de Dezembro de 2007, Segunda-feira, às 14:00h e 11 de Dezembro de 2007, Terça-feira, às 14:00h