Photonic Crystal | Current Affairs Discussion | Devendra Saini | Edukemy

Graphene-stabilised tunable photonic crystal recently discovered by researchers has potential applications in making more durable and better reflective displays and laser devices.
Photonic crystals are optical nanostructures in which the refractive index changes periodically. The Refractive index, is the measure of the bending of a ray of light when passing from one medium into another.
This affects the propagation of light in the same way that the structure of natural crystals gives rise to X-ray diffraction and that the atomic lattices (crystal structure) of semiconductors affect their conductivity of electrons.
In the video, Devender Saini (Faculty, Edukemy) outlines the Photonic Crystal in our Current Affairs Session in detail.
The video is important for all aspirants preparing for UPSC CSE and will be useful both for Prelims and Mains.
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