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?
- The method uses laser beams to record holograms of their test beads.
- The surfaces of the beads are activated with biochemical binding sites that attract either antibodies or virus particles, depending on the intended test.
- Binding antibodies or viruses causes the beads to grow by a few billionth parts of a metre.
- 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:
- Military mapping.
- Information storage.
- Medical.
- Fraud and security: Eg- small silver rectangle of a dove on your credit card.
- Art.
InstaLinks:
Prelims Link:
- What is holography?
- What is holographic imaging?
- Applications.
Sources: Indian Express.
