This text on precision frequency measurement and its key enabling techniques includes reviews written by some of the most experienced researchers in their respective fields. This text should prove useful to researchers just entering the field of frequency metrology and standards, or equally well to the experienced practitioner.

This text is the first to discuss, in detail, the development of traditional and second-generation frequency chains together with their enabling technology Extended up-to-date references

Inhalt
Low-Noise and Ultrastable Secondary Frequency Standards.- Low-Noise Microwave Resonator-Oscillators: Current Status and Future Developments.- Ultrastable Cryogenic Microwave Oscillators.- Frequency-Temperature Compensation Techniques for High-Q Microwave Resonators.- Laser-Cooled Atom and Trapped-Ion Frequency Standards.- Optical Frequency Standards Based on Neutral Atoms and Molecules.- Cold-Atom Clocks on Earth and in Space.- Single-Ion Optical Frequency Standards and Measurement of their Absolute Optical Frequency.- Recent Developments in Microwave Ion Clocks.- Conventional Optical Frequency Measurement and Mid-Infrared Frequency Standards.- Optical Frequency Measurement by Conventional Frequency Multiplication.- Optical Frequency Measurements Relying on a Mid-Infrared Frequency Standard.- Advanced Optical Frequency Measurement and Synthesis.- Measuring the Frequency of Light with Mode-Locked Lasers.- Generation and Metrological Application of Optical Frequency Combs.- Generation of Expanded Optical Frequency Combs.- Accurate Optical-Frequency Synthesis.