In:
Modern Physics Letters B, World Scientific Pub Co Pte Ltd, Vol. 30, No. 16 ( 2016-06-20), p. 1650195-
Kurzfassung:
A new structure of microstructure reflection three-port beam splitter grating is described in this paper. The grating includes two dielectric layers and a metal slab on the substrate, where incident waves are reflected into the zeroth-order and the ± first-order with polarization-independent property. With the optimized grating profile, reflection efficiencies’ ratios between the first-order and the zeroth-order can reach 0.998 and 1.001 for TE and TM polarizations, respectively. Especially, the reflection grating can diffract efficiencies more than 30% into the ± first-order and the zeroth-order with the incident angular bandwidth of −1.9–1.9[Formula: see text] for TM polarization, which can have merits compared with single-layer transmission grating.
Materialart:
Online-Ressource
ISSN:
0217-9849
,
1793-6640
DOI:
10.1142/S0217984916501955
Sprache:
Englisch
Verlag:
World Scientific Pub Co Pte Ltd
Publikationsdatum:
2016