Abstract
A triangular grating is characterized by three parameters like period, depth and angle. Simultaneous blazing or complete concentration of the scattered field of both TE and TM polarisations into the n=—1 spectral order should be possible by proper choice of groove parameters. Knowledge of groove fields is essential for precise designing of a right triangular corrugated structure for studying the blazing effect. Groove fields and their associated powers under soft and hard (Neumann) conditions have been determined on the bounding groove surfaces. The governing Helmholtz wave equation has been solved for determining the free surface fields and the groove fields under rotational matrix transformation.
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