Design of omnidirectional asymmetrical high reflectors for optical telecommunication wavelengths

A design for omnidirectional asymmetrical high reflectors for optical telecommunication wavelengths is described. Asymmetry was introduced by applying a power law, so that the coordinates y of the transformed object were determined through the coordinates x of the quarter-wave stack air/H(LH)<Superscript>15</Superscript>/air in accordance with the following rule y=x <Superscript>1 + k </Superscript>. Here k is the coefficient defining the asymmetry degree. It is shown that a high-reflection band at any incident angle for both polarizations, i.e., an omnidirectional high reflection band of 0.74 <InlineEquation ID="Equ1"> <EquationSource Format="TEX">$\mu $</EquationSource> </InlineEquation>m for optical telecommunication wavelengths 0.85 and 1.3 <InlineEquation ID="Equ2"> <EquationSource Format="TEX">$\mu $</EquationSource> </InlineEquation>m is found for the transformed system: air/Te(SiO<Subscript>2</Subscript>/Te)<Superscript>15</Superscript>/air corresponding to the optimized k value 0.24. Copyright Springer-Verlag Berlin/Heidelberg 2004