Electron Holography

Electron holography has recently paved a new way for observing and measuring microscopic objects and fields that were previously inaccessible employing other techniques. FuH use is made of the extremely short wavelength of electrons, enabling electron holography to have a great impact on fields ranging from basic science to industrial applications. This book will provide an overview of the present state of electron holography for scientists and engineers entering the field. The principles, techniques and applications which have already been developed, as weH as those which are expected to arise in the near future, will be discussed. The strange and interesting nature of electron quantum interference has intrigued the author who has devoted most of his life to this field, and motivated hirn to write this book in the hope of raising interest in, and encouraging others to enter, the field. Front Matter....Pages I-IX Introduction....Pages 1-1 Principles of Holography....Pages 2-8 Electron Optics....Pages 9-17 Historical Development of Electron Holography....Pages 18-26 Electron Holography....Pages 27-43 Aharonov-Bohm Effect: The Principle Behind the Interaction of Electrons with Electromagnetic Fields....Pages 44-68 Electron-Holographic Interferometry....Pages 69-106 High-Resolution Microscopy....Pages 107-118 Conclusions....Pages 119-119 Back Matter....Pages 120-138 Electron Holography was devised for breaking through the resolution limit of electron microscopes. The advent of a "coherent" field-emission electron beam has enabled the application of electron holography in various areas of magnetic-domain-structure observation, fluxon observation in superconductors, and fundamental experiments in physics, which have been inaccessible using other techniques After examining the fundamentals of electron holography and its applications to the aforementioned fields, a detailed discussion of the Aharonov-Bohm effect and related experiments is presented. Many photographs and illustrations are included to elucidate the text