Results 31 to 40 of about 88,044 (260)
Imaging fibre bundles for Fizeau-based optical coherence tomography [PDF]
, 2008 An OCT system incorporating a coherent fibre imaging bundle is described. Fibres are accessed sequentially by a beam focused onto the input face of the bundle, allowing 2D or 3D images to be acquired using point detection.
Tatam, Ralph P. +5 more
core +1 more source
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2014 We propose a measuring technique for microflow based on the stochastic resonance phenomenon. The minute changed signal from the microflow hidden within the threshold of multi-threshold imaging sensors, such as CCDs, can be reconstructed using an external
Masaki MICHIHATA +3 more
doaj +1 more source
Non-destructive Fiber-optic Sensor System for the Measurement of Speed in Road Traffic
Advances in Electrical and Electronic Engineering, 2016 Fiber-optic sensors offer an attractive option to existing sensors for the measurement of the vehicle speed in road traffic. This article describes the measuring scheme of two interferometric sensor units including input-output components for the ...
Jan Nedoma +3 more
doaj +1 more source
Cure monitoring of a UV cured epoxy resin using a long period grating Mach- Zehnder interferometer [PDF]
, 2007 A cascaded long period grating Mach-Zehnder interferometer is used to monitor the change in refractive index of a UV cured epoxy resin over a cure cycle.
Richard P. Murphy +7 more
core +1 more source
The Parkes-Tidbinbilla Interferometer [PDF]
Publications of the Astronomical Society of Australia, 1985 AbstractWe report the development of a radio-linked interferometer which uses the 64-m telescope at Parkes, NSW, and one of the NASA antennas (64-m or 34-m) at Tidbinbilla, ACT. With a baseline of approximately 275 km, this is the world’s longest real-time interferometer; it will be usable at frequencies of 1.6, 2.3, 8.4, and 22 GHz to give angular ...
R. P. Norris +3 more
openaire +1 more source
Toxics, 2023 Glyoxal (CHOCHO) is a trace gas in the atmosphere, often used as an indicator of biogenic emissions. It is frequently compared to formaldehyde concentrations, which serve as indicators of anthropogenic emissions, to gain insights into the characteristics
Callum E. Flowerday +3 more
doaj +1 more source
A quantum scattering interferometer [PDF]
Nature, 2007 The collision of two ultra-cold atoms results in a quantum-mechanical superposition of two outcomes: each atom continues without scattering and each atom scatters as a spherically outgoing wave with an s-wave phase shift. The magnitude of the s-wave phase shift depends very sensitively on the interaction between the atoms.
Hart, Russell A. +3 more
openaire +3 more sources
Analytical method to find the optimal parameters for gas detectors based on correlation spectroscopy using a Fabry-Perot interferometer [PDF]
, 2007 Several designs of infrared sensors use a Fabry-Perot Interferometer (FPI) to modulate the incident light. In this work we analyse the particular case where the FPI fringes are matched with very well defined ro-vibrational absorption lines of a target ...
Rutt, Harvey N. +1 more
core +1 more source
Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
wiley +1 more source
Feedback-assisted quantum nondemolition measurement in an atom-light-correlated interferometer
New Journal of PhysicsQuantum nondemolition (QND) measurement plays an essential role in quantum optics and quantum information. Here, a feedback-assisted atom-light-correlated interferometer (FALCI) is proposed and applied to the QND measurement of photon number, in which ...
Gao-Feng Jiao
doaj +1 more source