Results 41 to 50 of about 5,395 (220)

Distributed acoustic sensing with Michelson interferometer demodulation

open access: yesPhotonic Sensors, 2016
The distributed acoustic sensing (DAS) has been extensively studied and widely used. A distributed acoustic sensing system based on the unbalanced Michelson interferometer with phase generated carrier (PGC) demodulation was designed and tested.
Xiaohui Liu   +6 more
doaj   +1 more source

Overview of the ECE measurements on EAST [PDF]

open access: yesEPJ Web of Conferences, 2019
Radiometer systems and a Michelson interferometer, have been operated routinely to detect the elec-tron cyclotron emission (ECE) from EAST plasmas for diagnosing the local electron temperature.
Liu Yong   +20 more
doaj   +1 more source

Compact Fourier‐Transform Spectrometer on Thin‐Film Lithium Niobate via Mode‐Circulating Modulation

open access: yesAdvanced Photonics Research, Volume 7, Issue 8, August 2026.
Schematic diagram of the proposed compact on‐chip Fourier‐transform spectrometer on thin‐film lithium niobate that exploits mode‐circulating electro‐optic modulation, in which guided light is sequentially converted among multiple spatial modes to accumulate multiple phase modulation events within a single physical modulation arm.
Hao Yao   +7 more
wiley   +1 more source

Quasi‐Standard Platform of AlScN Piezoelectric Integrated MEMS Technology (PIMT) For Multi‐Project Wafer Fabrication

open access: yesAdvanced Sensor Research, Volume 5, Issue 8, August 2026.
This report presents an 8‐inch quasi‐standard piezoelectric integrated MEMS technology (PIMT) platform which, through the integration of core and additional processes, reliably supports three rounds of multi‐project wafer (MPW) fabrication. Whilst ensuring support for mass production processes, the platform offers certain flexibility, providing a ...
Yongquan Su   +18 more
wiley   +1 more source

Novel Principle of Contactless Gauge Block Calibration

open access: yesSensors, 2012
In this paper, a novel principle of contactless gauge block calibration is presented. The principle of contactless gauge block calibration combines low-coherence interferometry and laser interferometry.
Ondřej Číp   +5 more
doaj   +1 more source

Applications of Optical Fiber in Label-Free Biosensors and Bioimaging: A Review

open access: yesBiosensors, 2022
Biosensing and bioimaging are essential in understanding biological and pathological processes in a living system, for example, in detecting and understanding certain diseases.
Baocheng Li   +3 more
doaj   +1 more source

Toward Intelligent Multimodal Holography for Real‐Time Chemical Imaging of Dynamic Ion Separation

open access: yesAdvanced Intelligent Discovery, Volume 2, Issue 4, August 2026.
Intelligent multimodal holography integrates digital off‐axis holography, spectroscopic imaging, and AI‐driven reconstruction to visualize ion transport and chemical dynamics in real time. In this perspective paper, we outline how this approach enables label‐free, chemically specific monitoring of complex environments and discuss its potential to ...
Giovanna Ricchiuti   +3 more
wiley   +1 more source

Global Characterization of Stratospheric Sulfate Aerosols by the Atmospheric Chemistry Experiment (ACE)

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Stratospheric sulfate aerosol (SSA) is an important part of the Earth's climate system. SSA climate impact is determined in part by particle composition, which has been measured from orbit. The weight percent of sulfuric acid in SSA has been determined from atmospheric infrared transmittance spectra recorded with the Atmospheric Chemistry ...
Peter Bernath   +3 more
wiley   +1 more source

Validation of minor species of the MIPAS2D database

open access: yesAnnals of Geophysics, 2014
The MIPAS2D [Dinelli et al., 2010] database has been developed applying the tomographic analysis technique GMTR [Carlotti et al., 2001] to measurements acquired in the nominal observation mode of the complete MIPAS (Michelson Interferometer for Passive ...
Enzo Papandrea   +6 more
doaj   +1 more source

Diamagnetically Levitated Sensing Platforms Made With Surface‐Insulated and Magnetically Aligned Graphite Particles

open access: yesAnalysis &Sensing, Volume 6, Issue 4, July 2026.
Diamagnetic levitation striking an ideal balance of the lifting force with the high mechanical quality factor is reported. Surface‐insulated particles of graphite in slurry are magnetically aligned before drying up into a solid plate. Alignment is tailored according to the magnet used for levitation.
Tomoya Kamide   +3 more
wiley   +1 more source

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