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Question: 3 suppose you want to design a gas cell for...

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3) Suppose you want to design a gas cell for laser-induced fluorescence measurements, and that you want to use Brewster angle windows for the excitation beam to minimize reflection of the laser beam.
a) Draw a diagram of the gas cell showing the orientation of the entrance and exit windows for the laser beam; assume the laser beam is horizontally polarized. Also show where you would place the window through which fluorescence would be viewed. Explain your reasons for the placement of the three windows

b) Calculate the Brewster angle for 488.0nm light if crown glass is used for the windows.
Indices of refraction for crown glass are: 1.539 at λ = 361nm; 1.517 at λ = 589nm; 1.505 at λ = 1200nm.

Please show workings.

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