Acta Optica Sinica, Volume. 9, Issue 5, 429(1989)
Standing-wave electric field in inhomogeneous film with exponential index profile
The wave equation has been resolved analytically for an inhomogeneous film with exponential index profile in one direction. The electric field varies as Bessel functions. The distribution of standing-wave electric field is obtained when such inhomogeneous layers are overlaped on a λ/4 reflective stack. The results show that the inhomogeneous film can be used as an approach to reduce optical losses in a film system.
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SHUN SHOUYAO, ZHOU JIULIN. Standing-wave electric field in inhomogeneous film with exponential index profile[J]. Acta Optica Sinica, 1989, 9(5): 429