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Terahertz Physics

Book Description

Terahertz physics covers one of the least explored but richest regions of the electromagnetic spectrum. Designed for independent learning, this is the first book to open up this exciting new field to students of science and engineering. Written in a clear and consistent style, the textbook focuses on an understanding of fundamental physical principles at terahertz frequencies and their applications. Part I outlines the foundations of terahertz science, starting with the mathematical representation of oscillations before exploring terahertz-frequency light, terahertz phenomena in matter and the terahertz interactions between light and matter. Part II covers components of terahertz technology, from sources of terahertz frequency radiation, through the manipulation of the radiation, to its detection. Part III deals with applications, including time-domain spectroscopy. Highlighting modern developments and concepts, the book is ideal for self-study. It features precise definitions, clear explanations, instructive illustrations, fully worked examples, numerous exercises and a comprehensive glossary.

Table of Contents

  1. Cover
  2. Half Title
  3. Title Page
  4. Copyright
  5. Dedication
  6. Table of Contents
  7. Preface
  8. 1 INTRODUCTION
    1. 1.1 Frequency. Hertz.
    2. 1.2 Time. Second.
    3. 1.3 Wavelength. Metres.
    4. 1.4 Wavenumber. Inverse metres.
    5. 1.5 Powers of ten
    6. 1.6 Quantities, symbols, units, dimensions
    7. 1.7 What lies ahead
    8. 1.8 Summary
  9. Part I
  10. 2 OSCILLATIONS
    1. 2.1 Describing oscillations
    2. 2.2 Compact notation
    3. 2.3 The time-bandwidth theorem
    4. 2.4 The Fourier theorem
    5. 2.5 Summary
    6. 2.6 Table of symbols, Chapter 2
  11. 3 COMBINING OSCILLATIONS
    1. 3.1 Oscillations in the same direction
    2. 3.2 Oscillations in two dimensions
    3. 3.3 Jones notation
    4. 3.4 Summary
    5. 3.5 Table of symbols, Chapter 3
  12. 4 LIGHT
    1. 4.1 Photons
    2. 4.2 Electromagnetic waves
    3. 4.3 Describing waves
    4. 4.4 Describing electromagnetic waves
    5. 4.5 Polarisation
    6. 4.6 Blackbody radiation
    7. 4.7 Summary
    8. 4.8 Table of symbols, Chapter 4
  13. 5 MATTER
    1. 5.1 Wave mechanics
    2. 5.2 The Schrödinger equation
    3. 5.3 Free particle
    4. 5.4 Infinitely high, square potential well
    5. 5.5 Finite, square potential well
    6. 5.6 Multiple, finite, square potential wells
    7. 5.7 Oscillations of molecules
    8. 5.8 Summary
    9. 5.9 Table of symbols, Chapter 5
  14. 6 INTERACTION OF LIGHT AND MATTER
    1. 6.1 A static electric field in a region of space
    2. 6.2 Electromagnetic waves in matter
    3. 6.3 Interaction of light and matter – harmonic oscillator model
    4. 6.4 Electromagnetic waves in an insulator
    5. 6.5 Electromagnetic waves in a conductor
    6. 6.6 Electromagnetic waves at an interface
    7. 6.7 Summary
    8. 6.8 Table of symbols, Chapter 6
  15. Part II
  16. 7 SOURCES
    1. 7.1 Survey of sources of terahertz-frequency electromagnetic radiation
    2. 7.2 Electromagnetic radiation from free charges – vacuum electronics
    3. 7.3 Electromagnetic radiation from bound states – lasers
    4. 7.4 Sources based on vacuum electronics
    5. 7.5 Laser sources
    6. 7.6 Sources driven by continuous lasers
    7. 7.7 Sources driven by pulsed lasers
    8. 7.8 Summary
    9. 7.9 Table of symbols, Chapter 7
  17. 8 OPTICS
    1. 8.1 Quasi-optics
    2. 8.2 Mirrors
    3. 8.3 Lenses
    4. 8.4 Lightpipes and waveguides
    5. 8.5 Prisms
    6. 8.6 Attenuators
    7. 8.7 Filters
    8. 8.8 Windows
    9. 8.9 Polarisers
    10. 8.10 Summary
    11. 8.11 Table of symbols, Chapter 8
  18. 9 DETECTORS
    1. 9.1 Detector parameters
    2. 9.2 Thermal detectors
    3. 9.3 Electro-optic detectors
    4. 9.4 Photoconductive detectors
    5. 9.5 Summary
    6. 9.6 Table of symbols, Chapter 9
  19. Part III
  20. 10 SPECTROSCOPY
    1. 10.1 Monochromatic sources
    2. 10.2 Dispersive spectroscopy
    3. 10.3 Interferometry
    4. 10.4 Time-domain spectroscopy
    5. 10.5 Summary
    6. 10.6 Table of symbols, Chapter 10
  21. 11 IMAGING
    1. 11.1 Passive imaging
    2. 11.2 Raster imaging
    3. 11.3 Focal plane array imaging
    4. 11.4 Near-field imaging
    5. 11.5 Tomography
    6. 11.6 Summary
    7. 11.7 Table of symbols, Chapter 11
  22. Appendix A Prefixes
  23. Appendix B Mathematical symbols
  24. Appendix C Mathematics
  25. Appendix D Further reading
  26. Glossary
  27. Index