Does electromagnetic diffraction ever equal zero?
Matilda Fox
Answered question
2022-07-20
Answer & Explanation
gardapati5u
Beginner2022-07-21Added 9 answers
That said, what you can do is use wavelengths that are so short compared to your problem that the diffraction, while remaining positive, becomes negligible. In this regime, light doesn't really begin behaving like a particle; instead, you reach a regime called ray, or geometrical, optics, which is the approach often taught at high-school level where you treat rays of light as propagating in straight lines independently of each other. For more on the maths of how that limit works, see this or this questions on this site.
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