Concurrent spatial and spectral filtering by resonant nanogratings.


Optical devices incorporating resonant periodic layers constitute an emerging technological area. Recent advances include spectral filters, broadband mirrors, and polarizers. Here, we demonstrate concurrent spatial and spectral filtering as a new outstanding attribute of this device class. This functionality is enabled by a unique, near-complete, reflection… (More)
DOI: 10.1364/OE.23.023428