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We report a highly-sensitive plasmonic nano-ring transistor for monolithic terahertz (THz) active antenna. By designing an ultimate asymmetric transistor on a metal-gate structure, more enhanced (180 times) channel charge asymmetry has been obtained in comparison with a bar-type asymmetric transistor of our previous work. In addition, by exploiting ring-type transistor itself as a monolithic circular...
Photonic-electronic integration is a key technology to master data traffic growth and therefore an enabler of future network technologies. For some time now, a novel silicon-based photonic-electronic integration technology, photonic BiCMOS, is under development at IHP. Photonic BiCMOS is a planar technology co-integrating monolithically on a single substrate high-speed RF frontend electronics - by...
Considering a Ge-on-Si waveguide p-i-n photodetector structure inspired by the literature, we have investigated the role of the detector geometry on its electrical and optical (O/E) bandwidth. Due to the structural complexity of the detector, three-dimensional coupled optical and electrical simulations were needed to implement an accurate model. To make an extensive 3D optimization study possible...
The experimental results acquired on avalanche photodiodes based on III-V semiconductor materials and operated as single photon counters with picosecond timing resolution are reported. The semiconductor structures fabricated on the basis of GaAs, GaP and GaAsP have been operated in a Geiger mode and employed in a photon counting experiment at the wavelengths from near ultraviolet to near infrared...
Impact ionization [1,2], or electron-hole pair creation by charged particles, has been one of the central issues of semiconductor physics and devices. However, due to its complexity of the process, most experimental studies and their analyses have been macroscopic and phenomenological. This situation prevents us from exploring the fundamental physics of impact ionization and of high-energy charged...
The homodyne detector is a primitive element in many quantum optics experiments. It is primarily a characterization device, used for measuring the quantum state of the electromagnetic field[1]. Quantum integrated photonics[2], in which optical sources, circuits, and detectors are monolithically integrated on a semi-conductor chip, provides a compact, scalable, platform in which to implement quantum...
It was recently demonstrated that by adding a filter array to photodetector array, a very compact wavelength-multiplexed spectrometer can be achieved [1, 2]. These previous efforts have had both strengths and weaknesses, however. In [1], the filter array comprised etalons with different thicknesses fabricated by a multi-step process. In [2], the filter array comprised quantum dots spotted onto the...
With the continuous advances in the development of high-intensity lasers, laser-driven ion acceleration may become a compact alternative to produce ions with energies suitable for medical applications [1]. However, the unique properties of laser-accelerated ions, such as the mixed radiation field, a broad energy spectrum of up to 100% energy spread and ion fluxes exceeding 107 protons / cm2 / ns are...
Nanowire superconducting single-photon detectors (SSPDs) consist of a superconducting wire of nanoscale cross-section [1], typically 4×100 nm2. A current close to the device critical current renders the nanowire sensitive to single photons. SSPDs are known for their high efficiency, low jitter, low dark count rate and fast reset time. An important challenge for future application of SSPDs is to extend...
The paper presents the design and optimisation of memory buffer in the SALT (Silicon ASIC for LHCb Tracking) ASIC. The SALT is a new 128-channel readout ASIC for silicon strip detectors in the Large Hadron Collider beauty (LHCb) experiment at the Large Hadron Collider (LHC) in CERN. The stochastic nature of phenomena detected by the ASIC results in a very different amount of data after each collision...
We report the first demonstration of real-time monitoring of a single spin in a Quantum Dot (QD) using foundry-compatible Si MOS technology and a Split-Gate design with built-in charge detector. Since single-shot readout is an indispensable step in the pursuit of Si-based fault-tolerant quantum computing, this work contributes to asserting the fabrication of Si spin qubits in a MOS technology platform...
The ALICE Collaboration is preparing a major upgrade of the experimental apparatus, planned for installation in the second long LHC shutdown m the years 2019–2020. The key element of the ALICE upgrade is the construction of the new high resolution Inner Tracking System (ITS). It will be made of seven concentric detector layers based on a 50μm thick CMOS pixel sensor with a pixel pitch of 30 × 30 μm...
In this paper, we show a possibility of Si resonant plasma-wave transistor (R-PWT) as THz detector. Κ the channel mobility of strained Si R-PWT is 400 cm·V−1·s1, R-PWT can be operated as THz detector when channel length l= 21–28 nm.
Multi-object tracking is often hindered by difficulties such as occlusion and illumination change. In this paper, we propose a novel multi-object tracking method based on main-parts model. Main-parts model is formulated by segmenting parts of object and accumulating variations of appearance from previous frames. We assume that parts with weaker appearance variations are main-parts of an object. By...
In this article we present the conception, technological fabrication and electrical characterization of 3D hybrid pixel detector modules based on read out chips (ROCs) with through silicon vias (TSVs) which are flip chip bonded onto silicon photon sensors for X-ray detection. The TSVs in the ROCs enable a vertical routing of their peripheral IOs to the back side where they are spread to a land grind...
This work studies the performance of a cooperative network which consists of two channel-coded sources, multiple relays, and one destination. Due to the spectral efficiency constraint, we assume that a single time slot is dedicated to relaying. Conventional network-coded based cooperation (NCC) selects the best relay which uses network coding to serve the two sources simultaneously. It is shown that...
This paper reviews the last two decades design, fabrication and characterization advances on high performance MEMS-based gas chromatography systems, the related architectures and their constitutive building blocks, which include preconcentrators, microvalves and related sample injection devices, micro-columns, and detectors. Micro-GCs hold potential for rapid analysis of volatile organic compounds...
This work introduced a novelty MEMS pyroelectric infrared detector based on LiTaO3 (LT) crystal with high absorptivity amorphous carbon film layer. The LT crystal is thined and polished to 100um thickness and double mentaled for electical connection which will be suspened upon rectangle cave of silicon substrate with mental ring. Amorphous carbon(a-C) could be produced by magnetron sputtering on the...
The electrocardiographic tracing represents one of the most versatile pre-diagnostic tools and of greater clinical use at the present time. However, there are indicators that are difficult to observe by a health specialist, such as the so-called J-point and ST-segment elevation, useful in the assessment of ischemia. The present work proposes an improvement of the algorithm “Rising Falling Transition...
Edited film alignment is the post-production process of finding small parts of unedited footage that temporally and spatially match an edited film. The huge amount of data to be processed makes significant downsampling of the videos essential in real-life applications. Simultaneously, professional users demand that the task be achieved with frame and pixel-level accuracy. We propose a novel selective...
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