XPost: sci.space.policy, sci.optics, sci.physics   
   XPost: sci.military.naval   
   From: jeff.crowell@SPAMSUXhp.com   
      
   Robert Clark wrote:   
   > A reflectivity of 99.7% is probably good enough for the purpose. But   
   > this new research is to make it over the entire optical and infrared range.   
   >   
   > For the existing materials with high reflectivity over limited   
   > wavelengths I wonder if it would be possible to stack   
   > them to get the high reflectivity over a larger wavelength range.   
   >   
   > Also, instead of a high reflectivity mirror could we use a ultra low   
   > absorption lens?   
      
   Sundiver, anyone?   
      
   Jeff   
      
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