Asymmetrically distributed Bragg mirrors

An analysis is made of the reflection of surface light waves from waveguide Bragg mirrors. Numerical calculations are used to show that an asymmetric profile of grooves in such a periodic structure makes it possible to construct Bragg mirrors with characteristics which vary considerably as a result of a change in the sign of the asymmetry of the periodic structure profile or as a result of reversal of the direction of propagation of the initial wave. A physical interpretation of the effect is given. Some potential applications are indicated.