Abstract
The near and far fields of a finite conductivity metallic grating with symmetrical triangular facets, used in Littrow mount, are studied. A new Green’s function approach, based on the Hertz vector, is introduced and used to propagate throughout a two-dimensional domain. The field quantity of primary interest is Poynting’s vector; however, the stored power is also calculated. In assessing the fields generated by the propagator, a quasi-periodic dependence of output characteristics on the grating depth to period ratio, discussed in the literature, is also found in the present study. With a plane wave incident on the grating, geometrical relationships between the incident wave vector and the grating surfaces have interesting consequences.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
Lifeng Li
J. Opt. Soc. Am. A 39(2) 297-305 (2022)
Ronald Masters, Chunming Hsiech, and Harry L. Pardue
Appl. Opt. 27(18) 3895-3897 (1988)
Haim Lotem
Appl. Opt. 33(6) 930-934 (1994)