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We report refractive index sensing with ultra-compact surface-normal double-layer stacked Fano resonance photonic crystal slabs. A quality factor of 6,757 and a limit of detection of 5.6×10−5 RIU were experimentally demonstrated, respectively.
Fano resonance, known from atomic physics, has been employed for a wide variety of nanophotonic structures, such as quantum dots, photonic crystals (PCs), plasmonics, and metamaterials, and so on. [1] With modal dispersion engineering, Fano filters and reflectors can all be realized in single layer dielectric PC structures [2–4]. Suh et al. and Liu et al. reported earlier the optical Q-factors and...
We report here single-layer ultracompact Fano-resonance photonic crystal membrane reflectors (MRs) at mid-infrared (IR) and far-IR (FIR) bands, based on single layer crystalline Si membranes. High-performance reflectors were designed for surface-normal incidence illumination with center operation wavelengths up to the 75- FIR spectral band. Large-area patterned MRs were also fabricated...
Recently, the Fano resonance, known from atomic physics, has been employed for a wide variety of nanophotonic structures, such as quantum dots, photonic crystals (PCs), plasmonics, and metamaterials. [1, 2] With modal dispersion engineering, Fano filters and reflectors can all be realized in single-layer dielectric PC structures. [3–5] We report here ultra-compact surface-normal high-Q Fano resonance...
The creation of silicon based light sources has been a major research and development effort world-wide. Among various approaches to silicon based light sources reported thus far, the hybrid gain-medium approach (especially integrated with group III–V materials) seems to be the most promising one due to its higher efficiencies than any others. [1–3]
Compact broadband reflectors (BBRs) are of great importance for optoelectronic devices and photonic integrated circuits like lasers, photodetectors, solar cells, and sensors, etc. Traditionally, they can be realized by using metal films or stacked dielectric thin films. Metal films can offer larger reflection bandwidth but are limited by their intrinsic absorption losses. Stacked dielectric thin films...
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