A new approach to on-chip probing in the MM-wave to THz range

2012 ◽  
Author(s):  
Mads J. H. Larsen ◽  
E. R. Brown
Keyword(s):  
New Approach ◽  
Thz Range ◽  
On Chip

scholarly journals Photonic welding points for arbitrary on-chip optical interconnects

Nanophotonics ◽  
2018 ◽  
Vol 7 (10) ◽  
pp. 1679-1686 ◽  
Author(s):  
Zejie Yu ◽  
Yang Ma ◽  
Xiankai Sun
Keyword(s):  
Integrated Circuits ◽  
Low Loss ◽  
Photonic Networks ◽  
New Approach ◽  
Waveguide Bends ◽  
Arbitrary Configuration ◽  
Integration Density ◽  
On Chip ◽  
Insertion Losses ◽  
Further Development

AbstractPhotonic integrated circuits (PICs) are an ideal platform for chip-scale computation and communication. To date, the integration density remains an outstanding problem that limits the further development of PIC-based photonic networks. Achieving low-loss waveguide routing with arbitrary configuration is crucial for both classical and quantum photonic applications. To manipulate light flows on a chip, the conventional wisdom relies on waveguide bends of large bending radii and adiabatic mode converters to avoid insertion losses from radiation leakage and modal mismatch, respectively. However, those structures usually occupy large footprints and thus reduce the integration density. To overcome this difficulty, this work presents a fundamentally new approach to turn light flows arbitrarily within an ultracompact footprint. A type of “photonic welding points” joining two waveguides of an arbitrary intersecting angle has been proposed and experimentally demonstrated. These devices with a footprint of less than 4 μm2can operate in the telecommunication band over a bandwidth of at least 140 nm with an insertion loss of less than 0.5 dB. Their fabrication is compatible with photonic foundry processes and does not introduce additional steps beyond those needed for the waveguides. Therefore, they are suitable for the mass production of PICs and will enhance the integration density to the next level.

scholarly journals CGMAP: a new approach to Network-on-Chip mapping problem

2009 ◽  
Vol 6 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Fahime Moein-darbari ◽  
Ahmad Khademzade ◽  
Golnar Gharooni-fard
Keyword(s):  
Network On Chip ◽  
New Approach ◽  
Mapping Problem ◽  
On Chip

scholarly journals Mind-Shift: An Method for Power and Energy Reduction inApplication Mapping onto Network-o-Chip architectures

2021 ◽  
Author(s):  
yasin asadi
Keyword(s):  
Efficient Design ◽  
Improved Method ◽  
New Approach ◽  
Current Design ◽  
One Step ◽  
Ip Cores ◽  
Iot Devices ◽  
On Chip ◽  
Power And Energy ◽  
Designing Method

Abstract Network-on-chip (NoC) is an efficient interconnection designing method for solving the limitations of buses in connecting IP cores. Power consumption is one of the most important issues in this area, solving this problem can lead to a more reliable and efficient design of NoC. Besides, there is another problem which is the More’s law is reaching an end. In this paper, we used a new approach, which improves designing points, so we can design NoC architecture more efficiently based on previous designs. Briefly, this method adds one step before the overall change of architecture which tests if the current design can be improved if we change some internal characteristics. For validation, we applied this method by using wire NoC, and changing its bottlenecks, and make them more efficient by using mapping and adding antennas for wireless communication. While this method seems simple at the first sight, but the result can help many designing, which are vital for industries, and technologies like Wireless Sensor Networks (WSN) and Internet of Things (IoT) devices. Briefly, this method can be used in NoC architectures and make them more efficient in a new style for new purposes. The results compared with the basic designing method with the new improved method; power and Energy improvements are respectively 25% and 46% with mapping and wireless improvements and approximately 60% more than traditional NoC in comparison with the basic method in this approach. This method also paves the way for green computing by avoiding producing more chemicals and products from a reusability perspective.

Nonlinear Properties of "Magnetic Light"

2015 ◽  
Vol 04 (01) ◽  
pp. 57-58 ◽  
Author(s):  
M. R. Shcherbakov ◽  
D. N. Neshev ◽  
B. Hopkins ◽  
A. S. Shorokhov ◽  
I. Staude ◽  
...  
Keyword(s):  
Visible Light ◽  
Photonic Devices ◽  
Plasmonic Nanoparticles ◽  
Plasmonic Waveguides ◽  
Optical Elements ◽  
New Approach ◽  
Nonlinear Properties ◽  
Plasmonic Structures ◽  
Overall Performance ◽  
On Chip

Control of light at the nanoscale is demanding for future successful on-chip integration. At the subwavelength scale, the conventional optical elements such as lenses become not functional, and they require conceptually new approach for a design of nanoscale photonic devices. The most common approach to the subwavelength photonics is based on plasmonic nanoparticles and plasmonic waveguides due to their ability to capture and concentrate visible light at subwavelength dimensions. But the main drawback of all plasmonic devices is their intrinsic losses due to metallic components which affect strongly the overall performance of plasmonic structures limiting their scalability and practical use.

Modeling Communication in Multi–Processor Systems–on–Chip Using Modular Connectors

2010 ◽  
Vol 1 (2) ◽  
pp. 23-44 ◽  
Author(s):  
Leonidas Tsiopoulos ◽  
Kaisa Sere ◽  
Juha Plosila
Keyword(s):  
Formal Methods ◽  
Concurrent Programming ◽  
Asynchronous Communication ◽  
New Approach ◽  
Action Systems ◽  
Modeling Methodology ◽  
Distributed Framework ◽  
Systems On Chip ◽  
On Chip

Formal methods of concurrent programming can be used to develop and verify complex Multi–Processor Systems–On–Chip in order to ensure that these systems satisfy their functional and communication requirements. The authors use the Action Systems formalism and show how asynchronous communication of Multi–Processor Systems–on–Chip can be modeled using generic connectors composed out of simple channel components. The paper proposes a new approach to modeling generic and hierarchical connectors for handling the complexity of on–chip communication and data flow. The authors’ goal is to avoid overloaded bus–based architectures and give a distributed framework. A case study presents the authors’ modeling methodology.

Modeling Communication in Multi–Processor Systems–on–Chip Using Modular Connectors

2012 ◽  
pp. 219-240 ◽  
Author(s):  
Leonidas Tsiopoulos ◽  
Kaisa Sere ◽  
Juha Plosila
Keyword(s):  
Formal Methods ◽  
Concurrent Programming ◽  
Asynchronous Communication ◽  
New Approach ◽  
Action Systems ◽  
Modeling Methodology ◽  
Distributed Framework ◽  
Systems On Chip ◽  
On Chip

Formal methods of concurrent programming can be used to develop and verify complex Multi–Processor Systems–On–Chip in order to ensure that these systems satisfy their functional and communication requirements. The authors use the Action Systems formalism and show how asynchronous communication of Multi–Processor Systems–on–Chip can be modeled using generic connectors composed out of simple channel components. The paper proposes a new approach to modeling generic and hierarchical connectors for handling the complexity of on–chip communication and data flow. The authors’ goal is to avoid overloaded bus–based architectures and give a distributed framework. A case study presents the authors’ modeling methodology.

scholarly journals Longitudinal multiparameter assay of lymphocyte interactions from onset by microfluidic cell pairing and culture

2016 ◽  
Vol 113 (26) ◽  
pp. E3599-E3608 ◽  
Author(s):  
Burak Dura ◽  
Mariah M. Servos ◽  
Rachel M. Barry ◽  
Hidde L. Ploegh ◽  
Stephanie K. Dougan ◽  
...  
Keyword(s):  
Single Cell ◽  
Functional Outcomes ◽  
Individual Cell ◽  
Population Level ◽  
Cell Interaction ◽  
Cell Level ◽  
New Approach ◽  
Signaling Dynamics ◽  
On Chip ◽  
Cell Cell

Resolving how the early signaling events initiated by cell–cell interactions are transduced into diverse functional outcomes necessitates correlated measurements at various stages. Typical approaches that rely on bulk cocultures and population-wide correlations, however, only reveal these relationships broadly at the population level, not within each individual cell. Here, we present a microfluidics-based cell–cell interaction assay that enables longitudinal investigation of lymphocyte interactions at the single-cell level through microfluidic cell pairing, on-chip culture, and multiparameter assays, and allows recovery of desired cell pairs by micromanipulation for off-chip culture and analyses. Well-defined initiation of interactions enables probing cellular responses from the very onset, permitting single-cell correlation analyses between early signaling dynamics and later-stage functional outcomes within same cells. We demonstrate the utility of this microfluidic assay with natural killer cells interacting with tumor cells, and our findings suggest a possible role for the strength of early calcium signaling in selective coordination of subsequent cytotoxicity and IFN-gamma production. Collectively, our experiments demonstrate that this new approach is well-suited for resolving the relationships between complex immune responses within each individual cell.

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