Despite the thickness of the silver, its high reflectivity makes the MIM grating structure visible. The refractive indices of the surrounding medium, phase grating, separation layer, and MIM dielectric are given by ns, nPG, nZ, and nMIM, respectively. The epoxies SU-8 and mr-EBL have been ...
They trained a five-layer ODNN to construct the light field conversion between the OAM modes and kinetic action (KA) holograms with binary grayscale values. They selected 10 OAM modes (l ∈ [−5, +5], l ≠ 0) as inputs to encode 10 KA holograms. By feeding these 10 samples ...
with selective area growth or SAG or etch back and then layer regrowth, a butt joint may be formed between the front photodetector (FPD) and the electro-optic modulator or between the modulators14and the optical combiner20as in the case in FIG. 10. There are other examples of such formed...
[0061] The whole switch may be fabricated in so-called silicon-optical bench technology. The lenses, the switching arrays and the in/out modules may be integrated, but commercially available dielectric gratings are too bulky for this technology. Microgratings may be developed, based on anisotropic...
Additionally, a single-layer aberration-compensated supercritical lens for a working wavelength of 633 nm has been proposed, capable of sub-diffraction limited focusing within a 20° field of view, consisting of 300 concentric rings with a fixed lateral scale of 200 nm but varying thicknesses to...
To optimize the etch rate, selectivity, and anisotropy of the device profile, a specific Si3N4 etch recipe was developed for this study. After the reactive-ion etching, a thin layer of residual PR remains on the grating, which is eliminated by performing O2 plasma ashing for 8 min. ...