The Solid State Maser presents readings related to solid state maser amplifier from the first tentative theoretical proposals that appeared in the early 1950s to the successful realization of practical devices and their application to satellite communications and radio astronomy almost exactly 10 years later. The book discusses a historical account of the early developments (including that of the ammonia maser) of solid state maser; the properties of paramagnetic ions in crystals; the development of practical low noise amplifiers; and the characteristics of maser devices designed for communications use. The text also contains reprints of several important papers that illustrate various aspects of solid state maser. Physicists will find the book useful.
Inhalt
Preface
Part I
Chapter 1. An Historical Account of Early Developments
Chapter 2. Maser Materials
Chapter 3. Maser Devices
Chapter 4. The Application of Solid State Masers
References
Part II
Comments on Paper 1
Paper 1. A Nuclear Spin System at a Negative Temperature
Comments on Paper 2
Paper 2. Amplification of Microwave Radiation by Substances not in Thermal Equilibrium
Comments on Paper 3
Paper 3. Molecular Microwave Oscillator and New Hyperfine Structure in the Microwave Spectrum of NH3
Comments on Paper 4
Paper 4. Possible Methods of Obtaining Active Molecules for a Molecular Oscillator
Paper 5. Proposal for a New Type of Solid State Maser
Paper 6. Paramagnetic Fine Structure Spectrum of Cr+++ in a Single Ruby Crystal
Paper 7. Paramagnetic Spectra of Substituted Sapphires. Part I: Ruby
Paper 8. Spin-lattice Relaxation Times in Ruby at 34-6 Ge/s
Paper 9. Spin-lattice Relaxation and Cross Relaxation Interactions in Chromium Corundum
Paper 10. Microwave Generation in Ruby due to Population Inversion Produced by Optical Absorption
Comments on Papers 11-12
Paper 11. Electron Spin Relaxation Times in Gadolinium Ethyl Sulfate
Paper 12. Operation of a Solid State Maser
Comments on Papers 13-14
Paper 13. Solid-State Maser Amplifier
Paper 14. Noise Temperature Measurement on a Solid State Maser
Paper 15. The Three-level Solid State Traveling-Wave Maser
Paper 16. Solid State Masers and Their Use in Satellite Communication Systems
Index