LAMELLAR METALLIC GRATING ANOMALIES

Authors
POPOV E TSONEV L MAYSTRE D
Citation
E. Popov et al., LAMELLAR METALLIC GRATING ANOMALIES, Applied optics, 33(22), 1994, pp. 5214-5219
Citations number
24
Categorie Soggetti
Optics
Journal title
Applied optics → ACNP
ISSN journal
00036935
Volume
33
Issue
22
Year of publication
1994
Pages
5214 - 5219
Database
ISI
SICI code
0003-6935(1994)33:22<5214:LMGA>2.0.ZU;2-9
Abstract
A detailed numerical investigation of anomalies in lossy metallic lame llar gratings is presented in a large interval of a wavelength-to-peri od lambda/d ratio. A substantial increase in absorption (a decrease in the total diffracted energy) is observed. If lambda/d is small enough (within the homogenized limit), the absorption can reach almost 100%. When the groove width is large enough, the anomalies are connected wi th mode resonances inside the grooves.