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   sci.optics      Discussion relating to the science of op      12,750 messages   

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   diffraction grating in water or vacuum   
   06 Nov 13 20:36:11   
   
   From: gcsel@yahoo.com   
      
   diffraction grating equation is   
      
   sin theta_in + sin theta_out = m * lambda / grating period   
      
   How does it change inside a water?   
   refractive index is added and wavelength should be changed, too.   
      
   n_water*sin theta_in + n_water*sin theta_out = m * lambda / grating period /   
   n_water   
      
   Is it correct?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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