513.001 Molecular and Solid State Physics

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Wolfram Alpha

Physical
Constants

Periodic System
of Elements

      

Density of states

Photons are confined to a box 2 μm × 3 μm × 4 μm. How many allowed k-states are there between k = 20 nm-1 and k = 21 nm-1?

For which wavelengths is the density of states D(λ) the lowest?

What are the units of the density of states D(E) and D(λ) in three dimensions?