Holography Review: Description, History, and Applications

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The main features of holography

Holography is the science of making holograms
A method of recording an interference pattern
The method is based on wavefronts diffraction
Holographic devices can record three-dimensional information
The result is a hologram (Shimobaba, & Ito, 2019)

The main features of holograms

An image received through holography
A picture of a light field
The hologram represents light reflected off objects
A hologram is a three-dimensional image
The image is different from a photograph

The invention of holography

Holography was invented in 1947 (Shimobaba, & Ito, 2019)
The inventor is physicist Dennis Gabor
The inventor is of Hungarian-British origin
The invention of the method was occasional
The invention is connected with microscope development

The history of holography and its development

In the 1970s, the theory was completed
Computer and digital technologies appeared
In the 1980s two-color reflection hologram appeared
The applications of computer holography have extended
Today, many light-shaping devices are used

Basic description of holography

A beam splitter divides light
A beam is divided into two parts
Laser beams are also used (Kostuk, 2019)
The apparatus includes the recording medium
Photographic film is usually a recording medium

The components of the holographic process

An object or a group of objects
A part of the beam illuminates objects
Another part illuminates the recording medium
A coherent light beam is required
A stable environment should be maintained

The physical principles of holographic processes

Interference is the basis of the process (Kostuk, 2019)
Wavefronts superimposition cause interference
Diffraction is another essential process
The produces wavefronts encounter an object
Wavefronts combine to reconstruct an object

Types of holograms

Reflection hologram based on the light reflection
Transmission hologram based on the laser light
Hybrid hologram based on both principles

Many other variations can be made
More computer-based types are used today

Holography and photography

Holography has a random light pattern
A photograph is a two-dimensional picture
A lens is used for a hologram
The holographic process requires two light beams
Holography requires a specific kind of illumination

Advantages of holography

Allows to receive a detailed three-dimensional picture
No special glasses are required
May be used in many areas
Holography is safe for health (Smith, 2019)
It can be essential in medical examination

Disadvantages of holography

The holographic device is heavy
The holographic system can be difficult to operate
Consequent packaging and delivery issues may occur
The equipment may be expensive
The system should always be stable

Areas and ways of use

The sphere of entertainment (for example, television)
Physics, mathematics, modelling and engineering
Using three-dimensional models in education
Biology; medical research and examination
Games, computer graphics and design

Medical applications of holography

Holography is used as an X-Ray
X-Ray holography allows receiving internal images
The method is used in endoscopy
It is used by dentists and orthodontists
Holograms are applied in ophthalmology

Importance in nursing practice and details of use

Measures internal cavities of a human body
The holographic recording is non-contact
The medical use of holography is safe
The process allows recording microscopic elements
The process facilitates internal examination

A brief overview of the process and its role

The recording method appeared in the 20^th century
It can be applied to various areas of use
The method allows recording three-dimensional images
Holography is especially important in medicine
Computer technologies are often used in holography
Nowadays, digital holography is widespread

References

Shimobaba, T., & Ito, T. (2019). Computer holography: Acceleration algorithms and hardware implementations. Boca Raton, FL: CRC Press.

Kostuk, R. K. (2019). Holography: Principles and applications. Boca Raton, FL: CRC Press.

Smith, M. C. (2019). Nursing theories and nursing practice. Philadelphia, PA: F.A. Davis.

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