Thursday, 11 April 2013

Terahertz Spectroscopy and Imaging - New Book

Series: Springer Series in Optical Sciences, Vol. 171,2013, XXXI, 641 p.
Authors: Peiponen, Kai-Erik; Zeitler, Axel; Kuwata-Gonokami, Makoto (Eds.

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  • Presents the state-of-the-art of Terahertz spectroscopy
  • Gives a concise presentation of the basics of THz spectroscopy
  • Describes important applications of THz technology
"This book presents the current state of knowledge in the field of terahertz spectroscopy, providing a comprehensive source of information for beginners and experienced researchers alike whose interests lie in this area. The book aims to explain the fundamental physics that underpins terahertz technology and to describe its key applications. Highlights of scientific research in the field of terahertz science are also outlined in some chapters, providing an overview as well as giving an insight into future directions for research.

Over the past decade terahertz spectroscopy has developed into one of the most rapidly growing areas of its kind, gaining an important impact across a wide range of scientific disciplines. Due to substantial advances in femtosecond laser technology, terahertz time-domain spectroscopy (THz-TDS) has established itself as the dominant spectroscopic technique for experimental scientists interested in measurements at this frequency range. In solids and liquids THz radiation is in resonance with both phonon modes and hydrogen bonding modes, which makes it an ideal tool to study the interaction between molecules in a unique way; thus opening a wealth of opportunities for research in physics, chemistry, biology, materials science and pharmaceuticals.

This book provides easy access to scientists, engineers and students who want to understand the theory and applications of modern THz spectroscopy."

Chapter: Industrial Applications of Terahertz Imaging

This chapter gives a concise overview of potential industrial applications for terahertz imaging that have been reported over the past decade with a discussion of the major advantages and limitations of each approach. In the second half of the chapter we discuss in more detail how terahertz imaging can be used to investigate the microstructure of pharmaceutical dosage forms. A particular focus in this context is the nondestructive measurement of the coating thickness of polymer coated tablets, both by means of high resolution offline imaging in research and development as well as for in-line quality control during production.

... Defect in copper trace (a) (b) Fig. 18.3 Electro Optical Terahertz Pulse Reflectometry (EOTPR) for semiconductor fault testing. a Optical images of the two failed devices showing the cut in the copper traces. b Results obtained with EOTPR (source: TeraView Ltd.) ...

More on applications of terahertz technology