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Pronounced plasmonic absorption features at terahertz frequencies are measured in large-area graphene sheets coupled to periodic arrays of metallic nanoparticles, and limitations on their tunability caused by carrier density inhomogeneities are investigated.
We developed a facile route for detecting illicit pigment in real food sample using photonic crystal biosilica, which serves as a new lab-on-a-chip platform combining surface-enhanced Raman scattering sensing and thin layer chromatography.
Surface-enhanced infrared absorption is a spectroscopic technique but unsuitable for gas spectroscopy due to the need for long absorption path lengths. We demonstrate a device using metal-organic framework integrated with plasmonic nanoantennas for CO2 sensing.
We demonstrate an ultra-sensitive immunoassay biosensor through photonic crystal enhanced fluorescence and surface-enhanced Raman scattering (SERS) using diatom biosilica. We experimentally achieved enhanced detection limit down to 10−16M and 10−13M respectively.
We analyze the performance of anti-metal tags when they work in EMC (Electro Magnetic Compatibility) chamber and in substation. It is meaningful to the promotion of RFID(Radio Frequency Identification) tags applied in substation.
In this paper, a novel dual-band dual-circularly polarized beam-switched antenna has been proposed. The 4×4 microstrip Butler matrixes in L and S bands are used as the feeding network of the beam-switched antenna. By the method of simulation and optimization, the results indicate that this antenna system has low return loss, and can generate four beams covering ±60° working area seamlessly with the...
This work presents a TCAD investigation of the operation of a Z2FET device for memory application, where the TCAD model is well calibrated to experimental hysteresis curves. The DC operation of the Z2FET has been analyzed for 4 cases, based on the permutations of the front and back gate biases, to identify and compare different modes of operation. The memory mode of operation is under the “thyristof”...
Traditional memory devices are facing more challenges due to continuous down-scaling. 6T-SRAM suffers from variability [1-2] and reliability [3-4] issues, which introduce cell stability problems. DRAM cells with one transistor, one capacitor (1T1C) struggle to maintain refresh time [5-6]. Efforts have been made to find new memory solutions, such as one transistor (1T) solutions [7-9]. Floating body...
We report a laser-ablation aided, direct-write fabrication technique that could convert non-conductive paper rinsed with metal ions and polymer solution into conductive metal carbide and graphene with a typical sheet resistance of 45.3 Ω/□. As fabricated paper electronics inherit the microfiber network from paper and have nanoscale pores and 2D metal carbide flakes due to the laser ablation process...
This paper gives a research work in solving visual SLAM via a target-oriented tracking approach. The target-oriented tracking in this context refers to those object tracking approaches such as the well-known MeanShift but the approaches based on state-space or prediction are not included. The target-oriented tracking generally locks a dynamic or specific object which is not always available in a natural...
In the rapid development of modern science and technology, the dielectric materials with more extraordinary performance were extremely demanded in the electronic system fields. Nowadays, outstanding-performance polymers, which possess a high dielectric constant and flexibility but low dielectric loss have attracted great attention owing to their potential application in many cutting-edge industries,...
Dielectric materials with high energy density have a wide range of applications in high-performance capacitors, sensors, brakes, spacecraft, and electric stress control devices. Adding inorganic filler in the polymer matrix is an effective way to increase the energy density of the polymer materials, the characteristics of composites and inorganic filler with high dielectric constant and high breakdown...
We present the design and characterization of three ultra-compact nanoantenna couplers integrated on plasmonic slot waveguides. Light is coupled from a lensed fiber and the couple-out efficiencies are measured to be from 30% to 46%.
We demonstrate an ultra-compact on-chip near-infrared spectrometer using plasmonic grating band-pass filter array, providing a broad bandwidth over 270 nm and a high spectral resolution around 10 nm to measure the infrared absorption of xylene.
We demonstrated an ultra-sensitive near-infrared (NIR) absorption CO2 fiber-optic sensor at 1.57μm wavelength enhanced by metal-organic framework. We achieved 20 ppm detection limit with only 5cm length with 500× NIR enhancement from the MOF film.
We demonstrated ultra-compact near-infrared on-chip gas spectroscopy using high resolution plasmonic filter array. We experimentally achieved ∼10nm spectral resolution, which successfully resolved the two symmetric vibrational bands of CO2 at 2.0μm wavelength.
We developed a facile route for separating and detecting polycyclic aromatic hydrocarbons from mixed samples using photonic biosilica, which serves as a new lab-on-chip platform combining surface-enhanced Raman scattering sensing and thin layer chromatography.
We developed an innovative approach to continuously deliver picoliter volume droplets onto bioenabled optofluidic biosensors. The ultra-hydrophilic diatom surface concentrates molecules in the solution as the solvent evaporates, which enables single molecule detection by SERS.
We fabricate plasmonic-active SERS substrates by diatom biosilica through in-situ synthesis of in-pore silver nanoparticles. Such bioenabled multi-functional SERS substrate enables label-free detection of explosive molecules down to 2.7×10−15 gram on a single diatom frustule.
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