CU-Boulder CHEM 5161 - Interaction of Light with Matter (15 pages)

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Interaction of Light with Matter



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Interaction of Light with Matter

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Pages:
15
School:
University of Colorado at Boulder
Course:
Chem 5161 - Analytical Atmospheric Spectroscopy
Analytical Atmospheric Spectroscopy Documents

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Interaction of Light with Matter 28 Aug 2008 CHEM 5161 Rainer Volkamer Wave Particle Duality Huygens planar wavefront vs Newtons Corpuscular Theory 1600 s Young and Fresnel early 1800s Double slit experiment Maxwell late 1800s Maxwell equations wave Max Planck 1901 Black body radiation Albert Einstein 1905 Photoelectric effect E h particle Young and Fresnel 1803 D bl slit Double li experiment i Albert Einstein 1905 Ph Photoelectric l i effect ff Photoeffect cont Wave Particle Duality Huygens planar wavefront vs Newtons Corpuscular Theory 1600 s Young and Fresnel early 1800s Double slit experiment Maxwell M ll llate t 1800 1800s M Maxwellll equations ti wave Max Planck 1901 Black body radiation Albert Einstein Einstein 1905 Photoelectric Photoelectric effect effect E h mc2 particle The birth of quantum mechanics Niels Bohr 1913 Explanation for the Balmer Series of the hydrogen atom De Broglie 1924 all matter has wave like properties h p Erwin Schroedinger 1926 theoretical framework of quantum mechanics W Werner Heissenberg H i b 1927 uncertainty t i t principle i i l E t h 2 h 2 The hydrogen atom Balmer Series Examples de Broglie What is the momentum and the de Broglie wavelength associated with a human weighing 70kg and running at 20 km hr Wh Whatt iis th the momentum t and d th the d de B Broglie li wavelength of an electron accelerated th through h a voltage lt off 100 V Schroedinger Equation for the hydrogen atom Factorization of the wavefunction in polar coordinates Copenhagener Interpretation Radial component of the wavefunction Copenhagener Interpretation cont Angular component of the wavefunction Quantum numbers of atoms Molecules Franck Condon Principle determines line intensity Born Oppenheimer approximation way to simplify Schroedinger Equation separate electronic and nuclear portion of the wavefunction Why bother Quantum mechanics is a theory Spectroscopy provides the only and powerful means to verify predictions Information that can be obtained Chemical



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