Holography and Optical Filtering


Book Description

Holography and optical filtering techniques for structural analysis, material tests, and astronomical observation - conference.




Holography and Optical Filtering


Book Description

Holography and optical filtering techniques for structural analysis, material tests, and astronomical observation - conference.







Optical Holography


Book Description

Optical Holography deals with the use of optical holography to solve technical problems, with emphasis on the properties of holograms formed with visible light. Topics covered include the Fourier transform, propagation and diffraction, pulsed-laser holography, and optical systems with spherical lenses. A geometric analysis of point-source holograms is also presented, and holograms and hologram spatial filters formed with spatially modulated reference waves are described. This book is comprised of 20 chapters and begins with an introduction to concepts that are basic to understanding holography, from interference patterns and diffraction to hologram formation, basic holography equations, and partial coherence. The next chapter focuses on early developments in holography, paying particular attention to Bragg's X-ray microscope, X-ray holography, and the beginnings of optical holography. The discussion then turns to light sources for hologram formation; analysis of plane holograms; diffraction from volume holograms; and real-image applications of holographic methods. The remaining chapters explore holographic interferometry, color holography, and computer-generated holograms. The final chapter deals with hologram replication, television transmission of holograms, and formation of holograms using spatially incoherent subject light. This monograph will be a useful resource for electron microscopists, electrical engineers, opticists, physicists, chemists, and others interested in optical holography.




Holography and Optical Filtering


Book Description




Handbook of Optical Holography


Book Description

Handbook of Optical Holography is composed of 10 chapters that readers can turn to for specific questions regarding holography. This book begins by elucidating the classification of holograms, major types of holograms, and variations. The text then explains the image formation, cardinal points and principal rays for holography, equipment, and procedures. This book also tackles special problems and application areas of this technology. This text will be valuable to people who want to apply holography—whether to industry, government, health services, education, or research.







Optical Holography


Book Description

This 1996 book is an expanded edition of one of the best known introductions to optical holography.




Computer Generation of Coherent Optical Filters with High Light Efficiency and Large Dynamic Range


Book Description

Two new techniques for making computer generated spatial filters with high dynamic range and high light efficiency are described, and a general treatment of computer generated holograms is given. Examples of single-channel (continuous phase control) phase-only filters, binary phase-only filters, as well as the absorption-type filters have been realized experimentally. Experiments have been carried out for correcting blurred images and for character recognition. Finally, a ternary hologram (binary absorption and binary phase), which preserves advantages of both types of binary holograms but is capable of a higher dynamic range than either individually, has been realized experimentally using color film. (Modified author abstract).