Laser and Coherence Spectroscopy
Published on 8. March 2013
XVIII, 530 pages
978-1-4684-2352-5 (ISBN)
Description
The impact which has been made on spectroscopy by lasers, and by this route on major segments of physics and chemistry, has received ample documen tation in the past several years. Two principal themes emerge from examina tion of the numerous books and monographs now available on this subject: first, an increase in spectral resolution to levels previously undreamed of; and, second, the generation of nonlinear phenomena as a result of the intense radiation fields available from laser devices. There is one additional property of laser radiation which, although used extensively in experiments, does not appear to have been as thoroughly reviewed as the foregoing aspects. This is the spatial and temporal coherence of the radiation field produced by the laser, which makes possible the coherent excitation of molecular energy states. This feature is the subject of the present volume. While the use of coherence methods in spectroscopy has been paced by lasers, it is by no me ans restricted to this technology. In the second and fourth chapters, microwave sources are discussed as generators of coherent radiation fields and are used to probe both rotational energy levels and spin states of electronically excited molecules. The phenomena discussed in this book, such as nutation, free induction decay, radiative echoes, rapid pas sage, and so forth, are really the same in different regions of the spectrum, and themselves echo from one chapter to the next.
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Jeffrey Steinfeld
Laser and Coherence Spectroscopy
Book
03/2012
Springer
€106.99
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Content
1 Double-Resonance Spectroscopy.- 1.1. Introduction to Double-Resonance Methods.- 1.2. Response of a System to Pumping and Analyzing Radiation Fields.- 1.3. Experimental Considerations.- 1.4. Microwave-Detected Double Resonance.- 1.5 Infrared-Detected Double Resonance.- 1.6. Optically Detected Double Resonance.- 1.7. Molecular Information from Double-Resonance Experiments.- References.- 2 Coherent Transient Microwave Spectroscopy and Fourier Transform Methods.- 2.1. Introduction.- 2.2. Basic Theory and Experiment.- 2.3. Transient Absorption.- 2.4. Transient Emission.- 2.5. Fast Passage.- 2.6. Fourier Transform Microwave Spectroscopy.- 2.7. Molecular Interpretation of T1 and T2.- 2.8. Conclusion.- Appendix A. Solution of the Bloch Equations.- Appendix B. Two-State Relaxation Processes.- References.- 3 Coherent Transient Infrared Spectroscopy.- 3.1. Introduction.- 3.2. Density and Population Matrices.- 3.3. Absorption and Emission of Radiation.- 3.4. Solutions of the Population Matrix Equations.- 3.5. Experimental Techniques.- 3.6. Optical Nutation.- 3.7. Optical Free Induction Decay.- 3.8. Photon Echo.- 3.9. Measurement of Level Decay Rates.- 3.10. Velocity-Changing Collisions.- Appendix A. Justification of the Reduced Wave Equation.- Appendix B. Matrix Formulation of the Bloch Equations.- References.- 4 Coherent Spectroscopy in Electronically Excited States.- 4.1. Introduction.- 4.2. Theoretical Considerations.- 4.3. Experimental Methods.- 4.4. Applications.- References.- 5 Resonant Scattering of Light by Molecules: Time-Dependent and Coherent Effects.- 5.1. Elementary Time-Dependent Theory Related to Luminescence.- 5.2. Applications of Scattering Theory to Model Systems.- 5.3. Nature of the Electromagnetic Field.- 5.4. Theory of Light Scattering with Well-Defined LightSources.- 5.5. Effects of Intermolecular Interactions on Luminescence.- 5.6. Two-Photon Induced Light Scattering.- 5.7. Recent Resonance Fluorescence Concepts and Experiments.- Appendix. Contour Integration.- References.- Author Index.
