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A polarization sensitive interferometer: Delta interferometer
Chinese Physics B, 2022 A new type of polarization sensitive interferometer is proposed, named the Delta interferometer, inspired by its geometry resembling the Greek letter Delta. The main difference between the Delta interferometer and other existing interferometers, such as Michelson, Mach–Zehnder and Young’s double-slit interferometers, is that the two interfering paths ...
Chao-Qi 超奇 Wei 卫 +9 more
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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
Survey and visualization of land subsistence caused by groundwater depletion using Sentinel-1A IW TOPS Interferometry [PDF]
Environmental Resources Research, 2021 Land subsidence including downward subsidence with a horizontal displacement vector normally occurs in small amounts. In the present study, two pairs of Sentinel-1A descending and ascending images of 2014 and 2015 were used to survey the subsidence rate ...
R Dehghani Bidgoli +2 more
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Conceptual Design of a Dispersion Interferometer Using a Ratio of Modulation Amplitudes [PDF]
, 2010 Since a dispersion interferometer is free from mechanical vibrations, it does not need a vibration compensation system even for a probe beam with a short wavelength.
OKAJIMA, Shigeki +7 more
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Sensors, 2021 In our previous work, we have demonstrated that dielectric elastic grating can support Fabry–Perot modes and provide embedded optical interferometry to measure ultrasonic pressure.
Suejit Pechprasarn +2 more
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Stabilized fiber-optic Mach–Zehnder interferometer for carrier-frequency rejection
, 2013 We have demonstrated stabilization of a fiber-optic Mach–Zehnder interferometer, with a centimeter-scale path difference, to the transmission minimum for the carrier wave of a frequency-modulated laser beam.
Freegarde, Tim +4 more
core +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
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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
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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
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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