Results 11 to 20 of about 2,113 (128)

Versatile Multimodality Imaging System Based on Detectorless and Scanless Optical Feedback Interferometry—A Retrospective Overview for A Prospective Vision [PDF]

open access: yesSensors, 2020
In this retrospective compendium, we attempt to draw a “fil rouge” along fifteen years of our research in the field of optical feedback interferometry aimed at guiding the readers to the verge of new developments in the field.
Massimo Brambilla   +5 more
doaj   +4 more sources

Current Developments on Optical Feedback Interferometry as an All-Optical Sensor for Biomedical Applications [PDF]

open access: yesSensors, 2016
Optical feedback interferometry (OFI) sensors are experiencing a consistent increase in their applications to biosensing due to their contactless nature, low cost and compactness, features that fit very well with current biophotonics research and market ...
Julien Perchoux   +11 more
doaj   +4 more sources

Optical Feedback Interferometry for Velocity Measurement of Parallel Liquid-Liquid Flows in a Microchannel [PDF]

open access: yesSensors, 2016
Optical feedback interferometry (OFI) is a compact sensing technique with recent implementation for flow measurements in microchannels. We propose implementing OFI for the analysis at the microscale of multiphase flows starting with the case of parallel ...
Evelio E. Ramírez-Miquet   +5 more
doaj   +4 more sources

Methods and Limits for Micro Scale Blood Vessel Flow Imaging in Scattering Media by Optical Feedback Interferometry: Application to Human Skin [PDF]

open access: yesSensors, 2021
At the micrometric scale, vessels or skin capillaries network architecture can provide useful information for human health management. In this paper, from simulation to in vitro, we investigate some limits and interests of optical feedback interferometry
Adam Quotb   +6 more
doaj   +2 more sources

Fringe Detection and Displacement Sensing for Variable Optical Feedback-Based Self-Mixing Interferometry by Using Deep Neural Networks

open access: yesSensors, 2022
Laser feedback-based self-mixing interferometry (SMI) is a promising technique for displacement sensing. However, commercial deployment of such sensors is being held back due to reduced performance in case of variable optical feedback which invariably ...
Asra Abid Siddiqui   +2 more
doaj   +3 more sources

Sensing by Dynamics of Lasers with External Optical Feedback: A Review

open access: yesPhotonics, 2022
External optical feedback (EOF) has great impacts on the properties of lasers. It influences the stable operation of lasers. However, various applications based on lasers with EOF have been developed.
Bin Liu, Yangfan Jiang, Haining Ji
doaj   +1 more source

Determining System Parameters and Target Movement Directions in a Laser Self-Mixing Interferometry Sensor

open access: yesPhotonics, 2022
Self-mixing interferometry (SMI) is a promising sensing technology. As well as its compact structure, self-alignment and low implementation cost, it has an important advantage that conventional two-beam interferometry does not have, i.e., SMI signal ...
Bin Liu, Yuxi Ruan, Yanguang Yu
doaj   +1 more source

Optimization of Optical Trapping and Laser Interferometry in Biological Cells

open access: yesApplied Sciences, 2020
Optical trapping and laser interferometry enable the non-invasive manipulation of colloids, which can be used to investigate the microscopic mechanics of surrounding media or bound macromolecules.
Yujiro Sugino   +2 more
doaj   +1 more source

Terahertz near-field nanoscopy based on detectorless laser feedback interferometry under different feedback regimes

open access: yesAPL Photonics, 2021
Near-field imaging techniques, at terahertz frequencies (1–10 THz), conventionally rely on bulky laser sources and detectors. Here, we employ a semiconductor heterostructure laser as a THz source and, simultaneously, as a phase-sensitive detector ...
Eva A. A. Pogna   +5 more
doaj   +1 more source

Toward an Estimation of the Optical Feedback Factor C on the Fly for Displacement Sensing

open access: yesSensors, 2021
In this paper, a method based on the inherent event-based sampling capability of laser optical feedback interferometry (OFI) is proposed to assess the optical feedback factor C when the laser operates in the moderate and strong feedback regimes.
Olivier D. Bernal   +3 more
doaj   +1 more source

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