Spectral phase induced by the reflection on a mirror-based waveguide grating in the neighborhood of modal resonance.
A linearly polarized plane wave impinging on a mirror-based waveguide grating is shown to experience a 2pi phase shift of controllable slope in the reflection spectrum. Such a zeroth-order resonant grating effect is adequately confirmed by means of an ellipsometer. The close agreement between the analytical representation of grating coupled waveguide resonances with the experimental results confirms the relevance of the underlying phenomenological understanding of resonant gratings.
Pietroy
David
D
Laboratoire Hubert Curien, 18 rue Benoit Lauras, Saint-Etienne, France. david.pietroy@univ-st-etienne.fr
Tishchenko
Alexandre
A
Flury
Manuel
M
Parriaux
Olivier
O
Robert
Stephane
S
Tonchev
Svetlen
S