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The assessment of deep traps in In0.3Ga0.7As nFinFETs by Generation-Recombination (GR) noise spectroscopy is described in this paper. The gate voltage dependence of the corner frequency is studied for several devices with different gate lengths. Both gate-voltage-independent and gate-voltage-dependent corner frequencies are found. It is shown that the noise type turns from GR to Random Telegraph Signal...
Transition curvature in heat assisted magnetic recording presents significant limitation from reaching desired track densities and linear densities [1][2].
A novel compact circularly polarized (CP) microstrip antenna is presented. The antenna introduces a circular radiation patch with a crossed slot to improve the impedance matching and reduce the antenna sizes. Meanwhile, triangular feed patches are adopted to increase the bandwidth. A no-resistor series feed line is used for achieving a high antenna efficiency. Based on the above method, the antenna...
Dynamic manipulation of light at nanoscale is highly important for many applications, including optical security systems, optical tweezers and compact optoelectronic devices. A number of tuning methods using thermal, mechanical, optical, and electrical mechanisms have been reported. Among all, electrical tuning, based on incorporation of phase-change media, is the most prevailing thanks to on-chip...
In order to successfully identify the subsurface targets amidst the surrounding clutter, it is necessary to locate and distinguish the genuine target reflections from spurious reflections. In this paper, we propose a novel Bidimensional Empirical Mode Decomposition (BEMD) system to identify buried objects from ground penetrating radar (GPR) images. The entire process can be subdivided into four steps...
This paper reports a full micro gas chromatograph (µGC) in which all the components are electronic. All components, including a Knudsen pump, a preconcentrator, separation columns, and capacitive gas detectors, form a complete µGC system that has no moving parts, uses room air as carrier gas, and can be fabricated by a common low-cost process. The preliminary system has experimentally demonstrated...
In this work, assembly and packaging technologies for high-temperature high-power GaN high electron mobility transistors (HEMTs) are presented. GaN HEMTs with epitaxial growth on Silicon substrates were used during these experiments. Both die-attachment and interconnection techniques were investigated and a performance comparison is given before and after the assembly process. State-of-the-art silver...
The work presented in this paper focuses on the system identification of a 2-DOF flexure-based mechanism, designed for micro/nano scale positioning and manipulation. In the presented compliant mechanism, the cross axis coupling ratio is below 1% indicating excellent decoupling performance. The system identification procedure, experimental design, data collection, data analysis, and validation of the...
This paper reports a micro gas chromatography (μGC) system that includes a microfabricated Knudsen pump, preconcentrator, separation column, and discharge-based detector. All four components are co-designed and co-fabricated on the same glass wafer by a 3-mask lithographic process, and fit within a footprint of 1.8 × 1.8 mm2. Each component is tested individually: the motionless Knudsen pump provides...
The work presented in this paper focuses on the design of a novel flexure-based mechanism capable of delivering planar motion with three degrees of freedom (3-DOF). Pseudo rigid body modeling (PRBM) and kinematic analysis of the mechanism are used to predict the motion of the mechanism in the X-, Y- and θ-directions. Lever based amplification is used to enhance the displacement of the mechanism. The...
The steady-state performance of general network coding node is investigated, when data are transmitted in packets based on the stop-and-wait automatic repeat request error-control scheme. The general network coding node considered has H number of incoming links that provide packets for forming the coded packets transmitted by one outgoing link. Each of the incoming and outgoing links is assumed to...
The paper presents a novel network on-and-off chip approach for highly efficient and transparent intra-datacenter communications. The implemented FPGA-based network on-chip line card enables hitless adaptation between Ethernet and TSON, which is supported by a flexible network off-chip of AoD, demonstrating end-to-end high performance results.
The paper presents some results from the experimental validation of the achievements of the EU DICONET project. Specifically, the DICONET test-bed is presented and the experiments conducted for the performance evaluation of the control plane approaches designed to include the Physical layer Information (PLI) in the Routing and Wavelength Assignment (RWA) problem are discussed.
In this study, the potential application of compressive sensing (CS) principle in the image fusion for infrared (IR) and visible images is studied. First, the theory of CS is introduced briefly. Some comparative analyses of different reconstruction techniques are carried out in view of their performance in multisensor image recovery and the minimum number of sampling measurements one has to take to...
A centralized impairment-aware lightpath restoration scheme is experimentally demonstrated. Through the implementation of the QoT estimator module on FPGA technology, restoration times of 1.36 s are achieved for the high priority traffic class.
An enhanced impairment-aware path computation element (EPCE) for dynamic transparent optical networks is proposed and experimentally evaluated. The obtained results show that by using the EPCE, light-path setup times of few seconds are achieved.
This paper presents the TSON metro mesh network architecture for guaranteed, statistically-multiplexed services. It proposes tunable time-wavelength assignment, one-way tree-based reservation and node architecture. Results demonstrate high network efficiency, fast service delivery and guaranteed QoS.
An adaptive gridless OXC is demonstrated using field fiber. The OXC adapts its architecture on demand to switch variable type signals in frequency, time and space domain with 1000-fold bandwidth granularity and 1.5 Tb/s throughput.
Upon the development of the quantitative scanning transmission electron microscopy (QSTEM), individually counting the gold atom has been achieved. The correlation of the signals to the atom quantity (N), i.e. calibration, is its crucial work. One has to seek the ultra-fine mass standards, where the size-selected gold clusters rank the best recently. However, practically this is difficult for light...
A pattern reconfigurable U-slot antenna on a microwave substrate is presented. The antenna consists of a U-slot patch and eight shorting posts. Each edge of the square patch is connected to two shorting posts by PIN diodes. By switching between the different states of the PIN diodes, the proposed antenna can radiate boresight or conical patterns; moreover, the position of the main lobes of the conical...
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