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Atomic configuration along optic axis
How does the atomic configuration define a specific direction in a crystal called optic axis along which no birefrigence take place? What is so special about that particular axis ? What is the feature ...
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How do we determine refractive index of a photonic crystal?
Normally, refractive index of a medium is defined as
$$n=\frac c{v_\text{p}},$$
where $c$ is the speed of light in vacuum, and $v_\text{p}$ is the phase speed of light in the medium. Phase speed is ...
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