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[ATM] Reflectivity Measurements



Hi,

Does anyone know the proper method to measure reflectivity of mirrors which
were coated in a vacuum chamber? I am aware that the reflectivity changes
with incident light angle and that is why I am asking.

I have access to some good equipment such as a spectrometer and an
integrating sphere but I don't know the correct method of performing the
test.

Thanks,


Peter


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