Practical Holography XXII: Materials and Applications

2014

Journal of Optics, 2020

Holography is a promising technology for dynamic 3D display. However, it lacks suitable materials to meet the requirement for dynamic recording and display. Liquid crystals and quantum dots may be the focus in the future, for their high response rate and high quantum yields, respectively, but rational materials design is very necessary.

2010

Some of the alternative silver halide materials that can be considered to replace the previous Agfa Holotest materials are discussed. The characteristics of Slavich and HRT materials are examined, including the special aspects of recording and processing ultrahigh-resolution silver halide materials. These materials can offer a significant improvement in product quality. The sensitivity is lower than that of Agfa materials but the signal-to-noise ratio and dynamic range is an improvement. Photopolymers are increasingly being used for mass production. Dupont's OmniDex material, combined with their colour tuning film is an excellent material for this purpose as no wet processing is involved.

Light: Advanced Manufacturing

Materials Science, 2011

After invention of holography by Dennis Gabor in 1947 it is widely used in various areas. The development of new holography methods made it suitable for new industrial and scientific applications: printing, security and authentication, sensors, data storage, particles analysis, etc. This review will focus mainly on the development of the optical holography and its application for security and authentication. Other methods and applications such as measurements, particle analysis and data storage are discussed as well.

John Wiley & Sons, Inc. eBooks, 2006

The loud wind never reached the ship, Yet now the ship moved on! Beneath the lightning and the Moon The dead men gave a groan. Denis Gabor first elucidated the principle of holography 1 in a remarkable one-page article which appeared in Nature in the late 1940s [Gabor 1948]. At that time, 1 Gabor coined the term "hologram" from the Greek holos-to see. There is some uncertainty as to who first used the term "holography" (bringing together hologram and photography), but it may have been George Stoke [Kock 1981].

Education and Training in Optics and Photonics, 2009

Laboratory works on holograms recording, reconstruction and interpretation are useful for two reasons. Firstly, holography is widely used in science and engineering. Secondly, training labs in holography require complex applying of knowledge on interference, diffraction, coherency and other domains of optics. Educational kit and methodological instructions for optical experiments were presented in the previous paper 1 . The desktop holographic camera described in this paper is one of the additional functional units of the kit. The desktop holographic camera does not require additional protection against vibrations even if the exposure time is several minutes. This is a compact holographic installation for recording Denisyuk holograms. Two experiments are described in the paper to illustrate the usefulness of holographic laboratory works. The first one is a recording and reconstruction of a Denisyuk hologram. The second one is a recording and interpretation of a double-exposure interferogram when the holoplate is sagged due to loading between exposures. Also included in the paper are holographic setup and laboratory works on digital holography. These experiments require, in addition, complex applying of knowledge on photo receivers, CCD and other domains of photonics.

SUMMARY:mma Ultra-high resolution holograms are now finding commercial and industrial applications in such areas as museum artefact displays, holographic maps, 3D medical imaging, and advertising. Ultra-Realistic Imaging: Advanced Techniques in Analogue and Digital Colour Holography brings together a comprehensive discussion of key methods that enable holography to be used as a technique of ultra-realistic imaging. After a historical review of progress in holography, the book: • Discusses CW recording lasers, pulsed holography lasers, and reviews optical designs for many of the principal laser types with emphasis on attaining the parameters necessary for digital and analogue colour holography • Gives a full review of current photosensitive materials for colour holography • Covers modern methods of analogue colour holography and digital holographic printing • Introduces mathematical and geometrical notation for horizontal parallax-only holograms and practical computational algorithms for the full-parallax case • Reviews systems and the image processing algorithms required to convert the raw image data to the format required by digital printers for colour holograms • Develops the physical theory of the holographic grating and the hologram • Provides an up-to-date review of illumination sources, including LED and laser diode sources Written by leaders in colour holography, this handbook provides complete coverage of colour holographic techniques, including applications. The book covers not only the optics and theory behind such holographic 3D imaging techniques, but also laser technologies, recording devices, data acquisition and processing techniques, materials for recording colour holograms, and current applications of ultra-realistic images used in museums and for other display purposes. The book can be ordered from CRC Press:

In this chapter, we shall discuss the origin, the development and the beyond of holography. We will show that basically there are two types of holography, namely Leith's transmission-type and Denisyuk's reflection-type. Nevertheless, the successful development of holography must be due to the discovery of laser. Without the discovery of a strong coherent source, holography may not have happened at all. Although the original purpose for developing holography is to produce true three-dimensional imaging, it has a much wider dimension for various applications far beyond its legacy.