SpectroscopyLect11AddendumME501F2011

SpectroscopyLect11AddendumME501F2011 - Purdue University ME...

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Patterned Border Template 1 Purdue University School of Mechanical Engineering ME 501: Statistical Thermodynamics Lecture 14: Spectroscopy of Atoms and Diatomic Molecules Prof. Robert P. Lucht Room 2204, Mechanical Engineering Building School of Mechanical Engineering Purdue University West Lafayette, Indiana Lucht@purdue.edu , 765-494-5623 (Phone) September 21, 2011
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Patterned Border Template 2 Purdue University School of Mechanical Engineering Lecture Topics Electric dipole interactions. Rotational transitions. Vibrational (vibration-rotation) transitions. Electronic transitions.
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Patterned Border Template 3 Purdue University School of Mechanical Engineering Electron Density Distribution in Atoms Electron density distribution in the 1S and 2P states of atomic hydrogen is illustrated below. The electron density is proportional to the product of the wavefunction and its complex conjugate. Since the electron density distribution does not change with time, the atom does not radiate in these stationary states. Siegman, Lasers , 1986 e i phase
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Patterned Border Template 4 Purdue University School of Mechanical Engineering Electron Density Distribution in Atoms Expanded view of electron density distributions for the 1S, 2S and 2P states of atomic hydrogen.    0 100 100 3/2 0 100 100 exp / (,) e x p /0 ra rt i t a      0 210 210 5/2 0 16 1 210 210 exp / 2 c o s e x p 42 /1 . 5 5 1 0 s e c rr a i t a x   0 21 1 210 0 16 1 210 210 exp / 2 ,s i n e x p e x p 8 . 5 5 1 0 s e c a i i t a x 
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Patterned Border Template 5 Purdue University School of Mechanical Engineering Electron Density Distributions for Superposition of Quantum States
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SpectroscopyLect11AddendumME501F2011 - Purdue University ME...

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