Refined Model for Plasmon Ruler Based on Catenary-Shaped Optical Fields

Plasmonics ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 845-850 ◽  
Author(s):  
Xiaoliang Ma ◽  
Yinghui Guo ◽  
Mingbo Pu ◽  
Xiong Li ◽  
Xiangang Luo
Keyword(s):  
Refined Model ◽  
Optical Fields ◽  
Plasmon Ruler

REFINED MODEL FOR CALCULATION OF LIMITING SECRET EFFICIENCY OF WI-FI COMMUNICATION CHANNEL

2012 ◽  
Vol 71 (16) ◽  
pp. 1465-1473
Author(s):  
Vladimir M. Shokalo ◽  
A. A. Strelnitskiy ◽  
M.K. Abdul-Hussein ◽  
E.V. Yagudina
Keyword(s):  
Communication Channel ◽  
Refined Model

scholarly journals Time Decay for Nonlinear Dissipative Schrödinger Equations in Optical Fields

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Nakao Hayashi ◽  
Chunhua Li ◽  
Pavel I. Naumkin
Keyword(s):  
Lower Bound ◽  
Positive Root ◽  
Schrodinger Equations ◽  
Schrödinger Equations ◽  
Time Decay ◽  
Large Initial Data ◽  
Initial Value ◽  
Optical Fields ◽  
Gauge Invariant ◽  
Dissipative Condition

We consider the initial value problem for the nonlinear dissipative Schrödinger equations with a gauge invariant nonlinearityλup-1uof orderpn<p≤1+2/nfor arbitrarily large initial data, where the lower boundpnis a positive root ofn+2p2-6p-n=0forn≥2andp1=1+2forn=1.Our purpose is to extend the previous results for higher space dimensions concerningL2-time decay and to improve the lower bound ofpunder the same dissipative condition onλ∈C:Im⁡ λ<0andIm⁡ λ>p-1/2pRe λas in the previous works.

Single Molecules in Strong Optical Fields: A Variable-Temperature Molecular Junction Spectroscopy Setup

2021 ◽  
Author(s):  
Hai Bi ◽  
Chao Jing ◽  
Peter Hasch ◽  
Yuxiang Gong ◽  
Daniel Gerster ◽  
...  
Keyword(s):  
Variable Temperature ◽  
Single Molecules ◽  
Molecular Junction ◽  
Optical Fields

scholarly journals Microwave oscillator and frequency comb in a silicon optomechanical cavity with a full phononic bandgap

Nanophotonics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 3535-3544 ◽  
Author(s):  
Laura Mercadé ◽  
Leopoldo L. Martín ◽  
Amadeu Griol ◽  
Daniel Navarro-Urrios ◽  
Alejandro Martínez
Keyword(s):  
Phase Noise ◽  
Frequency Comb ◽  
Microwave Oscillator ◽  
New Paradigm ◽  
Mechanical Motion ◽  
Optical Fields ◽  
Optical Resonance ◽  
Processing Elements ◽  
Low Weight ◽  
Harmonic Mixing

AbstractCavity optomechanics has recently emerged as a new paradigm enabling the manipulation of mechanical motion via optical fields tightly confined in deformable cavities. When driving an optomechanical (OM) crystal cavity with a laser blue-detuned with respect to the optical resonance, the mechanical motion is amplified, ultimately resulting in phonon lasing at MHz and even GHz frequencies. In this work, we show that a silicon OM crystal cavity performs as an OM microwave oscillator when pumped above the threshold for self-sustained OM oscillations. To this end, we use an OM cavity designed to have a breathing-like mechanical mode at 3.897 GHz in a full phononic bandgap. Our measurements show that the first harmonic of the detected signal displays a phase noise of ≈−100 dBc/Hz at 100 kHz. Stronger blue-detuned driving leads eventually to the formation of an OM frequency comb, whose lines are spaced by the mechanical frequency. We also measure the phase noise for higher-order harmonics and show that, unlike in Brillouin oscillators, the noise is increased as corresponding to classical harmonic mixing. Finally, we present real-time measurements of the comb waveform and show that it can be fitted to a theoretical model recently presented. Our results suggest that silicon OM cavities could be relevant processing elements in microwave photonics and optical RF processing, in particular in disciplines requiring low weight, compactness and fiber interconnection.

scholarly journals Waste Identification in the Operation of Structural Engineering Companies (SEC) According to Lean Management

2021 ◽  
Vol 13 (8) ◽  
pp. 4249
Author(s):  
Felipe Muñoz-La Rivera ◽  
Juan Carlos Vielma ◽  
Rodrigo F. Herrera ◽  
Elisa Gallardo
Keyword(s):  
Structural Engineering ◽  
National Development ◽  
Computer Programs ◽  
Lean Management ◽  
Trial And Error ◽  
Refined Model ◽  
Error Process ◽  
Complex Process ◽  
Aec Industry

Although the architecture, engineering and construction (AEC) industry is highly relevant to national development, it suffers from significant productivity challenges. Beneath the design and documentation of structures, a dynamic, complex process is taking place, with constant modifications and feedback involving numerous professionals from different fields and their respective approaches and work developed using various computer programs. This diversity of factors converges within an iterative trial-and-error process and does not stop until a refined model is achieved. To understand traditional structural engineering companies (SECs) in Chile involved in building private procurement projects, 25 non-value-adding SEC activities were identified and classified according to typical lean management waste categories. These were initially validated by a panel of experts and then confirmed through a survey of 37 companies. The identified activities reduce the productivity of SEC organizations, contributing to low AEC industry indicators.

scholarly journals Scanning and Actuation Techniques for Cantilever-Based Fiber Optic Endoscopic Scanners—A Review

Sensors ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 251
Author(s):  
Mandeep Kaur ◽  
Pierre M. Lane ◽  
Carlo Menon
Keyword(s):  
Micro Electro Mechanical System ◽  
Modern Medicine ◽  
Image Resolution ◽  
Optical Fields ◽  
Scanning Method ◽  
Advantages And Disadvantages ◽  
Image Area ◽  
Technical Advances ◽  
Scanning Fiber

Endoscopes are used routinely in modern medicine for in-vivo imaging of luminal organs. Technical advances in the micro-electro-mechanical system (MEMS) and optical fields have enabled the further miniaturization of endoscopes, resulting in the ability to image previously inaccessible small-caliber luminal organs, enabling the early detection of lesions and other abnormalities in these tissues. The development of scanning fiber endoscopes supports the fabrication of small cantilever-based imaging devices without compromising the image resolution. The size of an endoscope is highly dependent on the actuation and scanning method used to illuminate the target image area. Different actuation methods used in the design of small-sized cantilever-based endoscopes are reviewed in this paper along with their working principles, advantages and disadvantages, generated scanning patterns, and applications.

scholarly journals On-chip sampling of optical fields with attosecond resolution

2021 ◽  
Author(s):  
Mina R. Bionta ◽  
Felix Ritzkowsky ◽  
Marco Turchetti ◽  
Yujia Yang ◽  
Dario Cattozzo Mor ◽  
...  
Keyword(s):  
Optical Fields ◽  
On Chip

Sensitive Interferometric Plasmon Ruler Based on a Single Nanodimer

2021 ◽  
Author(s):  
Otto Hauler ◽  
Lukas A. Jakob ◽  
Kai Braun ◽  
Florian Laible ◽  
Monika Fleischer ◽  
...  
Keyword(s):  
Plasmon Ruler

Convective Losses From Cavity Solar Receivers—Comparisons Between Analytical Predictions and Experimental Results

1983 ◽  
Vol 105 (1) ◽  
pp. 29-33 ◽  
Author(s):  
A. M. Clausing
Keyword(s):  
Experimental Data ◽  
Experimental Evidence ◽  
Analytical Model ◽  
Excellent Agreement ◽  
Experimental Results ◽  
Simple Analytical Model ◽  
Refined Model ◽  
Wall Area

Cavity solar receivers are generally believed to have higher thermal efficiencies than external receivers due to reduced losses. A simple analytical model was presented by the author which indicated that the ability to heat the air inside the cavity often controls the convective loss from cavity receivers. Thus, if the receiver contains a large amount of inactive hot wall area, it can experience a large convective loss. Excellent experimental data from a variety of cavity configurations and orientations have recently become available. These data provided a means of testing and refining the analytical model. In this manuscript, a brief description of the refined model is presented. Emphasis is placed on using available experimental evidence to substantiate the hypothesized mechanisms and assumptions. Detailed comparisons are given between analytical predictions and experimental results. Excellent agreement is obtained, and the important mechanisms are more clearly delineated.

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