Results 41 to 50 of about 70,192 (249)

Micromotion minimization using Ramsey interferometry

open access: yesNew Journal of Physics, 2021
We minimize the stray electric field in a linear Paul trap quickly and accurately, by applying interferometry pulse sequences to a trapped ion optical qubit.
Gerard Higgins   +5 more
doaj   +1 more source

Elasticity measurement using holographic interferometry double exposure technique [PDF]

open access: yes, 2004
Holographic measurement of modulus elasticity was performed on samples of aluminum can. It is based upon the measurement of the displacement as a function number of fringes appeared on the body of the loaded can.
Bidin, Noriah, Chuan, Kua Hock
core   +1 more source

Application Research of Frequency-Modulated Continuous-Wave Displacement Sensor Based on Zero-Crossing Phase Detecting Algorithm

open access: yesInternational Journal of Optics, 2021
Frequency-modulated continuous-wave (FMCW) interference, as a new technology of laser interferometry, has the advantages of length traceability, large range, high accuracy, simple structure, and optical fiber transmission.
Bin Sun   +3 more
doaj   +1 more source

A compact and robust diode laser system for atom interferometry on a sounding rocket

open access: yes, 2016
We present a diode laser system optimized for laser cooling and atom interferometry with ultra-cold rubidium atoms aboard sounding rockets as an important milestone towards space-borne quantum sensors.
Braxmaier, C.   +11 more
core   +1 more source

Characterization of Acoustic Sources by Optical Feedback Interferometry

open access: yesProceedings, 2017
Sound can be described as the propagation of pressure variations in compressible media that involves compression and expansion and induces a change in the density of the medium.
Fernando Urgiles   +2 more
doaj   +1 more source

Pulsed Frequency Shifted Feedback Laser for Accurate Long Distance Measurements: Beat Order Determination

open access: yes, 2012
Long-distance measurements (10 m - 1000 m) with an accuracy of 10-7 is a challenge for many applications. We show that it is achievable with Frequency Shifted Feedback (FSF) laser interferometry technique, provided that the determination of the radio ...
Amann   +22 more
core   +5 more sources

Real-Time and Meter-Scale Absolute Distance Measurement by Frequency-Comb-Referenced Multi-Wavelength Interferometry

open access: yesSensors, 2018
We report on a frequency-comb-referenced absolute interferometer which instantly measures long distance by integrating multi-wavelength interferometry with direct synthetic wavelength interferometry.
Guochao Wang, Lilong Tan, Shuhua Yan
doaj   +1 more source

A simple laser system for atom interferometry

open access: yes, 2014
We present here a simple laser system for a laser cooled atom interferometer, where all functions (laser cooling, interferometry and detection) are realized using only two extended cavity laser diodes, amplified by a common tapered amplifier.
Lours, Michel   +3 more
core   +3 more sources

Development of a Confocal Laser Doppler Flowmeter Using Optical Feedback Interferometry Techniques

open access: yesProceedings, 2017
We are presenting a novel confocal laser Doppler flowmeter based on optical feedback interferometry. [...]
Carlos Yáñez, Santiago Royo
doaj   +1 more source

A spaceborne gravity gradiometer concept based on cold atom interferometers for measuring Earth's gravity field

open access: yes, 2014
We propose a concept for future space gravity missions using cold atom interferometers for measuring the diagonal elements of the gravity gradient tensor and the spacecraft angular velocity.
Carraz, Olivier   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy