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In this work, we present a systematic electrical characterization of TiN\HfO2\Hf\TiN RRAM elements from the variability perspective. Variability of both programmed resistance values and switching triggering voltages has been evaluated on small scaled cells in a wide operating current range (2µA till 500µA's), for different oxide stacks, in DC and pulsed conditions. For the first time device-to-device...
We propose exploiting intermodal four-wave mixing for energy-scalable tuneable fiber lasers, hitherto restricted to low powers, constrained by dispersion-tailoring limitations in PCFs. Conversion over an octave, at mJ-energy-levels, appears feasible.
Compact parallel transmitters and receivers with an aggregate capacity of 107 Gb/s are built through hybrid integration of arrays of ten 100-GHz spaced directly modulated lasers, arrays of ten avalanche photodiodes, and high-index contrast silica arrayed waveguide grating multi- and demultiplexers. Unamplified transmission over 75 km of standard single-mode fiber and 155-km amplified links is demonstrated...
This paper reports a polymer nano-composite with enhanced electro-mechanical performance by mixing TiO2 nano-particles into polydimethylsiloxane (PDMS) matrix. The nano-composites with TiO2 concentration up to 30 wt% were synthesized by in-situ polymerization. High energy ball milling and surfactant polyethylene glycol was used to reduce the agglomeration and ensure a stable dispersion. The properties...
We have experimentally investigated dual-layer fishnet structures in the terahertz regime. The dispersion behavior of the different modes in this structure is inferred from their response to changes in THz wave incident angle and the thickness of the dielectric layer separating the two metallic films. The theory of magnetic plasmon polariton (MPP) is applied to explain the coupled dispersive modes.
This paper compares device performance for In0.53Ga0.47As MOSFETs using single HfO2 gate dielectric with stacked gate dielectrics using various interfacial layers between HfO2 and In0.53Ga0.47As substrate including Al2O3, HfAlOx, LaAlOx, and LaHfOx. Of the gate stacks studied, Al2O3/HfO2, HfAlOx/HfO2, and LaAlOx/HfO2 bilayer gate dielectrics exhibit lower subthreshold swing, higher drive current and...
A low loss sharp bend is proposed and analyzed in the slow-light waveguide which is consisted of a series of silicon nanopillars. More than 90% of transmission over 100 nm bandwidth is obtained.
In this work we show how the dispersion relation of slab-type PhCs can be directly determined both in the radiative and guided mode regimes by means of k-space spectroscopy. Angle-resolved reflectance, attenuated total reflectance and micro-photoluminescence spectroscopy are used to determine several important characteristics like band-edge dispersion, slow-light propagation or far-field intensity...
A planar lightwave circuit with a length-imbalanced Mach-Zehnder interferometer and an arrayed waveguide grating radiating into free-space generates nonlinearly spatially dispersed light. This arrangement is advantageous for mitigating mirror edge effect in MEMS-based components.
Large frequency shift parametric sidebands are shown to be sensitive to dispersion fluctuations. Comparing experimentally measured and theoretical calculated sideband conversion efficiencies allows us to estimate the uniformity of the photonic crystal fiber used.
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