We review guided-mode resonant photonic lattices by addressing their functionalities and potential device applications. The 1D canonical model is rich in properties and conceptually transparent, with all the main conclusions being applicable to 2D metasurfaces and periodic photonic slabs. We explain the operative physical mechanisms grounded in lateral leaky Bloch modes. We summarize the band dynamics of the leaky stopband. With several examples, we demonstrate that Mie scattering is not causative in resonant reflection. Illustrated applications include a wideband reflector at infrared bands as well as resonant reflectors with triangular profiles. We quantify the improved efficiency of a silicon reflector operating in the visible region relative to loss reduction as realizable with sample hydrogenation. A resonant polarizer with record performance is presented.
Resonant leaky modes can be induced on dielectric, semiconductor, and metallic periodic layers patterned in one or two
dimensions. In this paper, we summarize their physical basis and present their applicability in photonic devices and
systems. The fundamental amplitude and phase response of this device class is presented by computed examples for TE
and TM polarizations for lightly and heavily spatially modulated gratings. A summary of potential applications is
provided followed by discussion of representative examples. In particular, we present a resonant polarizer enabled by a
single periodic silicon layer operating across 200-nm bandwidth at normal incidence. Guided-mode resonance (GMR)
biosensor technology is presented in which the dual-polarization capability of the fundamental resonance effect is
applied to determine two unknowns in a biodetection experiment. In principle, using polarization and modal diversity,
simultaneously collected data sets can be used to determine several relevant parameters in each channel of the sensor
system; these results exemplify this unique capability of GMR sensor technology. Applying the GMR phase, we show
an example of a half-wave retarder design operating across a 50-nm bandwidth at λ~1550 nm. Experimental results
using a metal/dielectric design show that surface-plasmon resonance and leaky-mode resonance can coexist in the same
device; the experimental results fit well with theoretical simulations.
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