However , in many instances the more relevant figure of merit is the polarizer 's degree of polarization or extinction ratio , which involve a comparison of g to g .
Practical polarizers , especially inexpensive sheet polarizers , have additional loss so that g < 1 .
In many instances the more relevant figure of merit is the polarizer 's degree of polarization or extinction ratio , which involve a comparison of g to g .
Practical polarizers , especially inexpensive sheet polarizers , have additional loss so that g < 1 .