Cannot GET /d/Achieving%20a%20given%20reflectance%20for%20unpolarized%20light%20by%20controlling%20the%20incidence%20angle%20and%20the%20thickness%20of%20a%20transparent%20thin%20film%20on%20an%20absorbing%20substrate:%20application%20to%20energy%20equipartition%20in%20the%20four-detector%20photopolarimeter/0x1G9vx5MYxqfgQHHXvNBu