The diagram below shows a simple approximation of the lineshape function for the helium/neon laser transition at λ = 632.8 nm. Assume A21 = 6.56 x 106 sec¹ (a) What is the peak value of the lineshape function, S(vo)? (b) What is the stimulated emission cross section? 0.75 GHz 0.75 GHz K 4 3K/4 0.75 GHz A=632.8 nm K/2

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