Multiple choice

Among the following -------------------- are periodic optical nanostructures affecting the motion of photons.

  1. photonic crystals

  2. photonic-crystal fiber

  3. photonic metamaterials

  4. nanomaterials
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A Correct answer
Explanation

Photonic crystals are periodic optical nanostructures that are designed to affect the motion of photons in a similar way that periodicity of a semiconductor crystal affects the motion of electrons.

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