Polarization selective, graded-reflectivity resonance filter, using a space-varying
guided-mode resonance structure

Abstract

We designed, fabricated, and tested, polarization selective, graded-reflectivity resonant filters; based on a radial-gradient spatially-distributed, guided-mode resonance device architecture. The demonstrated filters have polarized spectral-resonance responses, distributed across their aperture extent, in the range between 1535 nm and 1540 nm wavelengths. Spectral sensitivity was observed on device tests, for wavelength changes as low as 0.2 nm. Using multiple lithographic exposures and biasing exposure methods, the devices were engineered to have a sub-aperture region, with no hard boundaries or diffraction anomalies.

Azimuthally Varying Guided Mode Resonance Filters

“…The results presented herein show this to be a valid assumption, and that a spatially varying GMRF structure will produce a spatially and spectrally varying optical output. Previous work has also shown this to be true for axially symmetric structures [6,[20][21][22]. It has also been demonstrated that these spatially and spectrally varying optical elements can be fabricated using techniques that are compatible with standard microfabrication technologies.…”

Effect of electric field on optoelectronic properties of indiene monolayer for photoelectric nanodevices

“…On the other hand, in-plane polarisation shows low to very low transparency in this region. This could lead to applications in devices which can benefit from polarisation selectivity, where the material has to pass the light of the specific polarisation, like Bragg filters 53 or resonant gratings 54 .…”

Diffractive Nonlocal Metasurfaces

“…Additionally, they are mostly limited to manipulating linear polarization states. Guided mode resonances [32][33][34][35][36][37][38][39] with spatially varying reflectance have been explored, [40][41][42][43][44] aimed at spatially shaping the amplitude profile of resonantly scattered light, but not its phase or polarization, and not with high spatial frequencies. Recent work [45][46][47] incorporating guided mode resonances into metagratings [48][49][50][51][52][53][54][55][56][57][58] has in part overcome this limitation, but it is thus far capable only of anomalous deflection of light towards one direction relative to the metagrating lattice, while the orthogonal direction is reserved for guided mode propagation.…”