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What is holographic imaging?

Topics Covered: Awareness in the fields of IT, Space, Computers, robotics, nano-technology, bio-technology and issues relating to intellectual property rights.

What is holographic imaging?

Why in News?

Scientists have developed a method using holographic imaging to detect both viruses and antibodies.

How it is done?

  1. The method uses laser beams to record holograms of their test beads.
  2. The surfaces of the beads are activated with biochemical binding sites that attract either antibodies or virus particles, depending on the intended test.
  3. Binding antibodies or viruses causes the beads to grow by a few billionth parts of a metre.
  4. Scientists then can detect this growth through changes in the beads’ holograms.

Benefits of this method:

  • The test could be done in under 30 minutes.
  • It is highly accurate.
  • It can be performed by minimally trained personnel.

What is holography?

It is a process that creates three-dimensional images called holograms.

  • This is done using laser beams, the properties of interference and diffraction, light intensity recording, and illumination of the recording.

The Hungarian-British physicist Dennis Gabor was awarded the Nobel Prize in Physics in 1971 “for his invention and development of the holographic method”.

Uniqueness of holographic images:

The images created so change according to the relative position of the individual viewer as if the objects displayed are actually present.

Potential applications:

  1. Military mapping.
  2. Information storage.
  3. Medical.
  4. Fraud and security: Eg- small silver rectangle of a dove on your credit card.
  5. Art.



Prelims Link:

  1. What is holography?
  2. What is holographic imaging?
  3. Applications.

Sources: Indian Express.