Results 91 to 100 of about 5,951 (304)

A low-cost High Spectral Resolution Lidar for measurement of aerosols and clouds optical properties [PDF]

EPJ Web of Conferences
We present an improved prototype of a low-cost High Spectral Resolution Lidar developed by our group at the University of Wisconsin. The lidar transmitter is based on commercially available diode laser components: a distributed feedback diode (DFB) laser
Razenkov Ilya, Buckholtz Zachary, Garcia Joseph, Eloranta Edwin   +3 more
doaj   +1 more source

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

Linearization techniques to suppress optical nonlinearity

, 2009
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis is shown the implementation of the linearization techniques such as feedforward and pre-distortion feedback linearization to suppress the ...
Tabatabai, Farbod
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SEMICONDUCTOR OPTICAL AMPLIFIER

, 2019
The rising demand for high bandwidth transmission capability link along with security and ease in installation has led to the interest in optical-wireless communication technology. In this paper an efficient and cost effective bi- directional RoF system with remote modulation using a reflective semiconductor optical amplifier (RSOA) is proposed.
openaire   +2 more sources

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

Advanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo, Carme Martínez‐Domingo, Diego Gutiérrez, Dean Kos, Marta Mas‐Torrent   +4 more
wiley   +1 more source

Optical time-domain demultiplexing techniques using semiconductor laser amplifiers

, 2022
S.3-6The paper reports on optical time-domain demultiplexing experiments using the techniques of cross-phase modulation and four-wave mixing in semiconductor laser amplifiers.
Ehrhardt, A., Jahn, E., Pieper, W., Schnabel, R., Ludwig, R., Ehrke, H.J., Weber, H.G., Agrawal, N., Eiselt, M.   +8 more
core  

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Spectrum-sliced wavelength division multiplexed systems with optical preamplifiers [PDF]

, 2009
The effect of dispersion on a spectrum-sliced wavelength division multi-plexed system with an optical preamplifier receiver is investigated using a theoretical model based on the statistics to improve understanding of spectrum slicing in a realistic ...
Sun, Shaobo, Leeson, Mark S.
core   +1 more source

Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors

Advanced Materials, EarlyView.
A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi, Daniele Zucchelli, Zeinab Hamid, Christina Kousseff, Arup Sarkar, Aristea Pavlou, Zhitian Ling, Somayeh Kashani, Iain McCulloch, Paul W. M. Blom, Fabrizio Torricelli, Paschalis Gkoupidenis   +11 more
wiley   +1 more source

Employing wavelength diversity to improve SOA gain uniformity

, 2010
In this paper, we propose a wavelength diversity technique for the semiconductor optical amplifier (SOA) to improve the gain uniformity for ultra-high speed optical routers.
Ghassemlooy, Zabih, Ng, Wai Pang, Aly, Moustafa, Ngah, Razali, Abd El Aziz, Ahmad   +4 more
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