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Comparison of Fluidic and Non-Fluidic Surface Plasmon Resonance Biosensor Variants for Angular and Intensity Modulation Measurements [PDF]

open access: yesSensors, 2023
Fluidic and non-fluidic surface plasmon resonance measurements were realized for the same type of sensory layer and using the same mouse IgG antibody and anti-mouse IgG antibody biomolecular system.
Piotr Mrozek   +2 more
doaj   +2 more sources

Intensity Modulation of Pseudocolor Images [PDF]

open access: yesBioTechniques, 1998
Fura-2 is a popular real-time fluorescent indicator used to image intracellular, free calcium concentrations ([Ca2+]i) in living cells. One difficulty with fura-2-based digital imaging is how to best display the [Ca2+]i information that is acquired ...
Lee E. Hinman, Paul J. Sammak
doaj   +3 more sources

Asymmetrically Clipped Optical Hadamard Coded Modulation (ACO-HCM)

open access: yesIEEE Photonics Journal, 2023
In many optical wireless communications systems, power efficiency is paramount. In others, flexibility is important. To achieve these goals, this paper presents a novel transmission scheme dubbed asymmetrically clipped optical Hadamard coded modulation ...
Henrik Schulze, Peter A. Hoeher
doaj   +1 more source

Acoustic Focusing with Intensity Modulation Based on Sub-Wavelength Waveguide Array

open access: yesCrystals, 2021
Acoustic focusing with intensity modulation plays an important role in biomedical and life sciences. In this work, we propose a new approach for simultaneous phase and amplitude manipulation in sub-wavelength coupled resonant units, which has not been ...
Mingran Zhang, Guangrui Gu
doaj   +1 more source

An Optically Pumped Magnetometer with Omnidirectional Magnetic Field Sensitivity

open access: yesSensors, 2023
In mobile applications such as geomagnetic surveying, two major effects hamper the use of optically pumped magnetometers: dead zones, sensor orientations where the sensors signal amplitude drops; and heading errors, a dependence of the measured magnetic ...
Volkmar Schultze   +5 more
doaj   +1 more source

Predistortion for High-Speed Lumped Silicon Photonic Mach-Zehnder Modulators

open access: yesIEEE Photonics Journal, 2022
The use of electrical precompensation for high-speed operation of lumped MZMs is demonstrated for 50 Gb/s PAM4 modulation through experiment and simulation.
Brian Murray   +3 more
doaj   +1 more source

Design and Implementation of Free Space Simplex Video – Laser Communication system [PDF]

open access: yesEngineering and Technology Journal, 2009
The optical communication system consists of a transmitter uses a laser beam ofa wavelength 650 nm as a carrier in free space, and a receiver uses PIN diode as adetector .
Hyder Abdul   +2 more
doaj   +1 more source

Intensity modulated proton therapy [PDF]

open access: yesThe British Journal of Radiology, 2015
Intensity modulated proton therapy (IMPT) implies the electromagnetic spatial control of well-circumscribed "pencil beams" of protons of variable energy and intensity. Proton pencil beams take advantage of the charged-particle Bragg peak-the characteristic peak of dose at the end of range-combined with the modulation of pencil beam variables to create ...
H M, Kooy, C, Grassberger
openaire   +2 more sources

Nonlinear Channel Equalization Using Gaussian Processes Regression in IMDD Fiber Link

open access: yesIEEE Photonics Journal, 2022
Gaussian processes regression (GPR)-aided nonlinear channel equalizer (CE) is experimentally demonstrated in a multi-level intensity modulation and direct detection fiber link.
Xiang Li   +4 more
doaj   +1 more source

Degradation of modulation and noise characteristics of semiconductor lasers after propagation in optical fiber due to a phase-shift induced by stimulated Brillouin scattering [PDF]

open access: yes, 1999
Here we demonstrate theoretically that stimulated Brillouin scattering (SBS) can induce a phase shift of the optical carrier relative to its sidebands due to the waveguiding effect of the optical fiber on the acoustic wave.
Peral, Eva, Yariv, Amnon
core   +1 more source

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