...a layer is denoted di. Notice that for a nontransparent medium, N is complex valued and written as N = n + ik, where n is the real part of the refractive index, k is the extinction coefficient, and i = %/^T is the complex entity. The extinction coefficient is...

...number: N = n + \k where N is the complex refractive index of the solid, i is the square root of — 1 , n is the real part of the refractive index, and k is called the absorption index, absorption coefficient or attenuation coefficient. At optical frequencies,...

...Gaussian with FWHM 8,. The refractive index n\ of an absorbent medium is complex (n, = n, +ik,) where ni is the real part of the refractive index and k| is the imaginary part also known as the extinction coefficient. Inserting a complex refractive index to Snells law we find...

...described by using several sets of equivalent constants, such as the complex refractive index N = n + jk(n is the real part of the refractive index and k is the extinction coefficient) and the complex dielectric constant s= s\ + js2 (s\ is the real part of dielectric...

...properties of solids can be studied with the complex refractive index ri: n* = n + ik (19) in which n is the real part of the refractive index and k is the imaginary part or absorption index. Values of n and k from 0.008731 [im to 600 urn (142.000-0.00207 eV) are given...