What is a Bragg reflector? Which technology does needs this type of reflector and why?? What...

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Physics

What is a Bragg reflector? Which technology does needs this typeof reflector and why?? What is the primary advantage of thistechnology?

What is Immersion lithography? How can it improve theresolution? What one main issue with this technology?

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Bragg reflector Bragg reflectoris a reflector used in waveguides such as optical fibers It is a structure formed from multiple layers of alternating materials with varying refractive index or by periodic variation of some characteristic such as height of a dielectric waveguide resulting in periodic variation in the effective refractive index in the guide    See Answer
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