| Glossary of Terms and Symbols | p. xi |
| Interaction of Millimetre Wavelength Electromagnetic Radiation with Gases | p. 1 |
| Basic Spectroscopic Theory | p. 3 |
| Effect of Spectral Line Broadening on Absorption Intensity | p. 10 |
| Doppler Broadening | p. 10 |
| Natural Linewidth and Pressure Broadening | p. 12 |
| Power Saturation and Broadening | p. 14 |
| Effect of the Cavity Q on Power Broadening | p. 15 |
| Line Intensities for Diatomic and Linear Polyatomic Molecules | p. 16 |
| Line Intensities for Symmetric-Top and Asymmetric-Top Molecules | p. 17 |
| Line Spectra | p. 17 |
| Band Spectra | p. 18 |
| Significance of the Peak Absorption Coefficient Functions for Quantitative Millimetre Wavelength Spectrometry | p. 19 |
| References | p. 20 |
| The Components of a MMW Cavity Spectrometer for Quantitative Measurements | p. 21 |
| Cavity Absorption Cells | p. 21 |
| Analytical Absorption Signals in a Fabry-Perot Cavity | p. 27 |
| Coupling Radiation into and out of Absorption Cells | p. 27 |
| The Reflection Cavity | p. 29 |
| The Transmission Cavity | p. 33 |
| A Practical Coupler | p. 35 |
| Scanning the Cavity | p. 35 |
| References | p. 37 |
| Practical Spectral Sources and Detectors for Analytical Spectrometry | p. 38 |
| Negative Resistance Oscillators, Multipliers and BWOs | p. 38 |
| Gunn Devices | p. 39 |
| Impatt Diodes | p. 41 |
| Schottky Barrier Devices | p. 43 |
| Backward Wave Oscillators, BWOs | p. 44 |
| Marginal Oscillators | p. 44 |
| The Use of Isolators in MMW Circuits | p. 46 |
| Source Frequency Control | p. 47 |
| Synchronised YIG Oscillators as Intermediate Frequency Sources | p. 48 |
| Signal Modulation and Detection Processes | p. 52 |
| Detectors for Quantitative MMW Spectrometry | p. 55 |
| Bolometer Mixers | p. 57 |
| Schottky Diode Mixers | p. 58 |
| Noise and Signal Processing in MMW Spectrometers | p. 60 |
| Johnson Noise | p. 60 |
| Shot Noise | p. 61 |
| Inverse Frequency or 1/f Noise | p. 61 |
| Signal Rectification Noise | p. 61 |
| References | p. 63 |
| The Quantitative Analysis of Gas Mixtures | p. 65 |
| Measuring the Spectral Line Profile and Area Using Frequency Modulation | p. 65 |
| Digital Modulation Techniques | p. 68 |
| Computerised Enhancement of Spectral Signals | p. 70 |
| Measurements at Pressures up to Atmospheric | p. 76 |
| Cavity Spacing Glitch Spectrometry | p. 76 |
| References | p. 79 |
| Cavity Spectrometer Designs and Applications | p. 80 |
| Previous Commercial Microwave Spectrometers | p. 80 |
| Fabry-Perot and Waveguide Cavity Spectrometers | p. 80 |
| Double Resonance Spectrometers | p. 82 |
| Recent Developments in MMW and Higher Frequency Spectrometers | p. 83 |
| Atmospheric Pressure MMW Spectrometers | p. 85 |
| References | p. 87 |
| A Practical Frequency Modulated Spectrometer and Its Application to Quantitative Analysis | p. 89 |
| To Set the Scene | p. 89 |
| Signal Sources and Operating Frequency Band | p. 90 |
| The Sample Cell and Sample Handling Techniques | p. 91 |
| Sample Modulation and Signal Detection | p. 100 |
| Computer Control, Signal Detection and Amplification | p. 101 |
| Post-Detection Signal Enhancement | p. 103 |
| Quantitative Interpretation of Data | p. 104 |
| Determination of Spectral Absorption Coefficients and Calibration Curves | p. 106 |
| Pressure Scanning | p. 110 |
| The Practical Spectrometer | p. 113 |
| References | p. 113 |
| The Future for Quantitative Millimetre Wavelength Spectrometry | p. 115 |
| References | p. 118 |
| Subject Index | p. 119 |
| Table of Contents provided by Syndetics. All Rights Reserved. |
