Gas phase molecular spectroscopy is a powerful tool for obtaining information on the geometry and internal structure of isolated molecules and their interactions with others. It enables the understanding and description, through measurements and modeling, of the influence of pressure on light absorption, emission, and scattering by gas molecules, which must be taken into account for the correct analysis and prediction of the resulting spectra. Collisional Effects on Molecular Spectra: Laboratory Experiments and Models, Consequences for Applications, Second Edition provides an updated review of current experimental techniques, theoretical knowledge, and practical applications. After an introduction to collisional effects on molecular spectra, the book moves on by taking a threefold approach: it highlights key models, reviews available data, and discusses the consequences for applications. These include areas such as heat transfer, remote sensing, optical sounding, metrology, probing of gas media, and climate predictions. This second edition also contains, with respect to the first one, significant amounts of new information, including 23 figures, 8 tables, and around 700 references.Drawing on the extensive experience of its expert authors, Collisional Effects on Molecular Spectra: Laboratory Experiments and Models, Consequences for Applications, Second Edition, is a valuable guide for all those involved with sourcing, researching, interpreting, or applying gas phase molecular spectroscopy techniques across a range of fields.
1. Chapter I Introduction - p. 1 2. Chapter II General equations - p. 11 3. II.1: Introduction - p. 11 4. II.2: Dipole autocorrelation function - p. 12 5. II.2.1: General formalism - p. 12 6. II.2.2: The Hamiltonian of the molecular system - p. 16 7. II.3: Toward “conventional” impact theories - p. 18 8. II.4: Beyond the impact approximation - p. 25 9. II.5: Effects of the radiator translational motion - p. 27 10. II.6: Collision-induced spectra - p. 31 11. II.7: Conclusion - p. 36 12. Appendix II.A: Spectral and time domain profiles in various spectroscopies - p. 36 13. Appendix II.B: Some criteria for the approximations - p. 47 14. Appendix II.C: The impact relaxation matrix - p. 54 15. Appendix II.D: The Liouville space - p. 60 16. Appendix II.E: The resolvent approach - p. 62 17. Chapter III Isolated lines - p. 69 18. III.1: Introduction - p. 69 19. III.2: Doppler broadening and Dicke narrowing - p. 81 20. III.3: Basic models for spectral line shapes - p. 84 21. III.4: Speed-dependent line-shape models - p. 98 22. III.4.1: Observation of speed-dependent inhomogeneous profiles - p. 98 23. III.4.2: Basic speed-dependent profiles - p. 107 24. III.4.3: The Rautian–Sobelman model - p. 114 25. III.4.4: The Keilson–Storer memory model - p. 125 26. III.5: Ab initio approaches of the line shape - p. 138 27. III.6: New achievements since 2008 - p. 152 28. III.7: Conclusion - p. 173 29. Appendix III.A: Computational aspects - p. 174 30. Chapter IV Collisional line mixing (within clusters of lines) - p. 181 31. IV.1: Introduction - p. 181 32. IV.2: The spectral shape - p. 189 33. IV.3: Constructing the impact relaxation matrix - p. 210 34. IV.3.1: Simple empirical (classical) approaches - p. 211 35. IV.3.2: Statistically based energy gap fitting laws - p. 218 36. IV.3.3: Dynamically based scaling laws - p. 226 37. IV.3.4: Semiclassical models - p. 239 38. IV.3.5: Quantum models - p. 251 39. IV.4: Determining line-mixing parameters from experiments - p. 260 40. IV.5: Literature review - p. 269 41. IV.6: New achievements since 2008 - p. 273 42. IV.7: Conclusion - p. 281 43. Appendix IV.A: Vibrational dephasing - p. 282 44. Appendix IV.B: Perturbed wave functions - p. 286 45. Appendix IV.C: Resonance broadening - p. 287 46. Chapter V The far wings (beyond the impact approximation) - p. 291 47. V.1: Introduction - p. 291 48. V.2: Empirical models - p. 293 49. V.3: Far wings calculations: the quasistatic approach - p. 299 50. V.4: From resonance to the far wing: a perturbative treatment - p. 308 51. V.5: From resonance to the far wing: a nonperturbative treatment - p. 311 52. V.6: New achievements since 2008 - p. 317 53. V.7: Conclusion - p. 327 54. Appendix V.A: The water vapor continuum - p. 328 55. Chapter VI Collision-induced absorption and light scattering - p. 337 56. Chapter VII Consequences for applications - p. 375 57. Chapter VIII Laboratory experimental techniques - p. 431 58. Chapter IX Toward future researches - p. 449 59. Abbreviations and acronyms - p. 473 60. Symbols - p. 479 61. Units and conversions - p. 483 62. References - p. 485 63. Index - p. 553
Gas phase molecular spectroscopy is a powerful tool for obtaining information on the geometry and internal structure of isolated molecules and their interactions with others. It enables the understanding and description, through measurements and modeling, of the influence of pressure on light absorption, emission, and scattering by gas molecules, which must be taken into account for the correct analysis and prediction of the resulting spectra. Collisional Effects on Molecular Spectra: Laboratory Experiments and Models, Consequences for Applications, Second Edition provides an updated review of current experimental techniques, theoretical knowledge, and practical applications. After an introduction to collisional effects on molecular spectra, the book moves on by taking a threefold approach: it highlights key models, reviews available data, and discusses the consequences for applications. These include areas such as heat transfer, remote sensing, optical sounding, metrology, probing of gas media, and climate predictions. This second edition also contains, with respect to the first one, significant amounts of new information, including 23 figures, 8 tables, and around 700 references.Drawing on the extensive experience of its expert authors, Collisional Effects on Molecular Spectra: Laboratory Experiments and Models, Consequences for Applications, Second Edition, is a valuable guide for all those involved with sourcing, researching, interpreting, or applying gas phase molecular spectroscopy techniques across a range of fields.
1. Chapter I Introduction - p. 1 2. Chapter II General equations - p. 11 3. II.1: Introduction - p. 11 4. II.2: Dipole autocorrelation function - p. 12 5. II.2.1: General formalism - p. 12 6. II.2.2: The Hamiltonian of the molecular system - p. 16 7. II.3: Toward “conventional” impact theories - p. 18 8. II.4: Beyond the impact approximation - p. 25 9. II.5: Effects of the radiator translational motion - p. 27 10. II.6: Collision-induced spectra - p. 31 11. II.7: Conclusion - p. 36 12. Appendix II.A: Spectral and time domain profiles in various spectroscopies - p. 36 13. Appendix II.B: Some criteria for the approximations - p. 47 14. Appendix II.C: The impact relaxation matrix - p. 54 15. Appendix II.D: The Liouville space - p. 60 16. Appendix II.E: The resolvent approach - p. 62 17. Chapter III Isolated lines - p. 69 18. III.1: Introduction - p. 69 19. III.2: Doppler broadening and Dicke narrowing - p. 81 20. III.3: Basic models for spectral line shapes - p. 84 21. III.4: Speed-dependent line-shape models - p. 98 22. III.4.1: Observation of speed-dependent inhomogeneous profiles - p. 98 23. III.4.2: Basic speed-dependent profiles - p. 107 24. III.4.3: The Rautian–Sobelman model - p. 114 25. III.4.4: The Keilson–Storer memory model - p. 125 26. III.5: Ab initio approaches of the line shape - p. 138 27. III.6: New achievements since 2008 - p. 152 28. III.7: Conclusion - p. 173 29. Appendix III.A: Computational aspects - p. 174 30. Chapter IV Collisional line mixing (within clusters of lines) - p. 181 31. IV.1: Introduction - p. 181 32. IV.2: The spectral shape - p. 189 33. IV.3: Constructing the impact relaxation matrix - p. 210 34. IV.3.1: Simple empirical (classical) approaches - p. 211 35. IV.3.2: Statistically based energy gap fitting laws - p. 218 36. IV.3.3: Dynamically based scaling laws - p. 226 37. IV.3.4: Semiclassical models - p. 239 38. IV.3.5: Quantum models - p. 251 39. IV.4: Determining line-mixing parameters from experiments - p. 260 40. IV.5: Literature review - p. 269 41. IV.6: New achievements since 2008 - p. 273 42. IV.7: Conclusion - p. 281 43. Appendix IV.A: Vibrational dephasing - p. 282 44. Appendix IV.B: Perturbed wave functions - p. 286 45. Appendix IV.C: Resonance broadening - p. 287 46. Chapter V The far wings (beyond the impact approximation) - p. 291 47. V.1: Introduction - p. 291 48. V.2: Empirical models - p. 293 49. V.3: Far wings calculations: the quasistatic approach - p. 299 50. V.4: From resonance to the far wing: a perturbative treatment - p. 308 51. V.5: From resonance to the far wing: a nonperturbative treatment - p. 311 52. V.6: New achievements since 2008 - p. 317 53. V.7: Conclusion - p. 327 54. Appendix V.A: The water vapor continuum - p. 328 55. Chapter VI Collision-induced absorption and light scattering - p. 337 56. Chapter VII Consequences for applications - p. 375 57. Chapter VIII Laboratory experimental techniques - p. 431 58. Chapter IX Toward future researches - p. 449 59. Abbreviations and acronyms - p. 473 60. Symbols - p. 479 61. Units and conversions - p. 483 62. References - p. 485 63. Index - p. 553
