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Measurement method using interference of waves
Interferometry is a technique which uses the interference of superimposed waves to extract information. Interferometry typically uses electromagnetic waves
Interferometry
Sea interferometry, also known as sea-cliff interferometry, is a form of radio astronomy that uses radio waves reflected off the sea to produce an interference
Sea_interferometry
Array used for astronomical observations
astronomical objects such as stars, nebulas and galaxies by means of interferometry. The advantage of this technique is that it can theoretically produce
Astronomical_interferometer
Optical biosensing technology
Bio-layer interferometry (BLI) is an optical biosensing technology that analyzes biomolecular interactions in real-time without the need for fluorescent
Bio-layer_interferometry
Technique used to measure 3D topography using shifted interference
Phase-shifting interferometry (PSI) is an optical metrology technique for measuring surface topography and wavefront shape to sub-nanometre precision.
Phase-shifting_interferometry
Analytical technique that probes molecular layers adsorbed to the surface of a waveguide
Dual-polarization interferometry (DPI) is an analytical technique that probes molecular layers adsorbed to the surface of a waveguide using the evanescent
Dual-polarization interferometry
Dual-polarization_interferometry
Comparing widely separated telescope wavefronts
Very-long-baseline interferometry (VLBI) is a type of astronomical interferometry used in radio astronomy. In VLBI a signal from an astronomical radio
Very-long-baseline interferometry
Very-long-baseline_interferometry
Form of particle interferometry
Ramsey interferometry, also known as the separated oscillating fields method, is a form of particle interferometry that uses the phenomenon of magnetic
Ramsey_interferometry
Phenomenon resulting from the superposition of two waves
specific time interval. Interferometry is still fundamental in establishing the calibration chain in length measurement. Interferometry is used in the calibration
Wave_interference
Measurement technique
White light interferometry is a non-contact optical method for surface height measurement on 3D structures with surface profiles varying between tens of
White_light_interferometry
Directional radio antenna used in radio astronomy
processing facility. This process is known as Very Long Baseline Interferometry (VLBI). Interferometry does increase the total signal collected, but its primary
Radio_telescope
Astronomical imaging methods
divided into the shift-and-add (image stacking) method and the speckle interferometry methods. These techniques can dramatically increase the resolution of
Speckle_imaging
Interferometry examines the general interference phenomena between pairs of signals in order to gain useful information about the subsurface. Seismic interferometry
Seismic_interferometry
Measuring technique
Holographic interferometry (HI) is a technique that enables the measurement of static and dynamic displacements of objects with optically rough surfaces
Holographic_interferometry
Form of radar used to create images of landscapes
and deforestation. Volcano and earthquake monitoring use differential interferometry. SAR can also be applied for monitoring civil infrastructure stability
Synthetic-aperture_radar
Grating-coupled interferometry (GCI) is a biophysical characterization method mainly used in biochemistry and drug discovery for label-free analysis of
Grating-coupled interferometry
Grating-coupled_interferometry
Carrier Interferometry (CI) is a spread spectrum scheme designed to be used in an Orthogonal Frequency-Division Multiplexing (OFDM) communication system
Carrier_interferometry
Scientific Electronic Device
nuller is an optical instrument, e.g., a beam combiner for nulling interferometry, used to block or cancel out a strong source so that fainter signals
Nuller
Interferometry technique
SU(1,1) interferometry is a technique that uses parametric amplification for splitting and mixing of electromagnetic waves for precise estimation of phase
SU(1,1)_interferometry
In optical astronomy, interferometry is used to combine signals from two or more telescopes to obtain measurements with higher resolution than could be
Astronomical optical interferometry
Astronomical_optical_interferometry
Optical device with parallel mirrors
In optics, a Fabry–Pérot interferometer (FPI), or etalon, is an optical cavity made from two parallel reflecting surfaces (mirrors). Optical waves can
Fabry–Pérot_interferometer
Spectral interferometry (SI) or frequency-domain interferometry is a linear technique used to measure optical pulses, with the condition that a reference
Spectral_interferometry
Interferometric technique
Self-mixing or back-injection laser interferometry is an interferometric technique in which a part of the light reflected by a vibrating target is reflected
Self-mixing_interferometry
Subfield of astronomy that studies celestial objects at radio frequencies
telescopes utilizing the techniques of radio interferometry and aperture synthesis. The use of interferometry allows radio astronomy to achieve high angular
Radio_astronomy
Interferometer which uses the wave-like nature of atoms
include accelerometers, rotation sensors, and gravity gradiometers. Interferometry splits a wave into a superposition along two different paths. A spatially
Atom_interferometer
Geodesy and remote sensing technique
amplitude and the absolute phase of the return signal data. In contrast, interferometry uses differential phase of the reflected radiation, either from multiple
Interferometric synthetic-aperture radar
Interferometric_synthetic-aperture_radar
Aperture masking interferometry (or Sparse aperture masking) is a form of speckle interferometry, that allows diffraction limited imaging from ground-based
Aperture masking interferometry
Aperture_masking_interferometry
Coherence scanning interferometry (CSI) is any of a class of optical surface measurement methods wherein the localization of interference fringes during
Coherence scanning interferometry
Coherence_scanning_interferometry
Interferometer using neutron diffraction to make precise measurements
wave-like nature of neutrons, and other related phenomena, to be explored. Interferometry inherently depends on the wave nature of the object. As pointed out
Neutron_interferometer
Common configuration for optical interferometry
The Michelson interferometer is a common configuration for optical interferometry and was invented by the American physicist Albert Abraham Michelson in
Michelson_interferometer
Topics referred to by the same term
the free dictionary. Null may refer to: Nuller, an optical tool using interferometry to block certain sources of light Null (SQL) (or NULL), a special marker
Null
Technique in radio direction finding
and therefore two monopulse ratios are formed. Very-long-baseline interferometry Amplitude-comparison monopulse Monopulse radar Mahafza, Bassem R. (1998)
Phase-comparison_monopulse
Compact astronomical body
in its observations of Sagittarius A* and M87*. Gravitational-wave interferometry can be used to detect merging black holes and other compact objects
Black_hole
performing surface height measurements of an object using coherence scanning interferometry (CSI) with spectrally-broadband, "white light" illumination. Different
White_light_scanner
European space mission to measure gravitational waves
observatory. It aims to measure gravitational waves directly by using laser interferometry. The LISA concept features three spacecraft arranged in an equilateral
Laser Interferometer Space Antenna
Laser_Interferometer_Space_Antenna
Relativistic effect due to rotation
after French physicist Georges Sagnac, is a phenomenon encountered in interferometry that is elicited by rotation. The Sagnac effect manifests itself in
Sagnac_effect
Utrasound technique
Coda wave interferometry is an ultrasound technique for detection of weak and local changes in complex inhomogeneous media. Sound waves that travel through
Coda_wave_interferometry
Electronic speckle pattern interferometry (ESPI), also known as TV holography, is a technique that uses laser light, together with video detection, recording
Electronic speckle pattern interferometry
Electronic_speckle_pattern_interferometry
Scientific instrument measuring light collimation
interferometer Spectral phase interferometry for direct electric-field reconstruction, a type of spectral shearing interferometry, which is similar in concept
Shearing_interferometer
on spectral shearing interferometry. Spectral shearing interferometry is similar in concept to lateral shearing interferometry, except the shearing is
Spectral phase interferometry for direct electric-field reconstruction
Spectral_phase_interferometry_for_direct_electric-field_reconstruction
Cancelled NASA space telescope
The Space Interferometry Mission, or SIM, also known as SIM Lite (formerly known as SIM PlanetQuest), was a planned space telescope proposed by the U.S
Space_Interferometry_Mission
Quantum correlations related to wave-particle duality
detector, and second, that according to Maxwell's equations, intensity interferometry should work. Others, such as Edward Mills Purcell immediately supported
Hanbury Brown and Twiss effect
Hanbury_Brown_and_Twiss_effect
Red supergiant star in the constellation Orion
"Speckle Interferometry". New Scientist. Vol. 78. pp. 238–40. Bibcode:1978NewSc..78..238W. Roddier, F. (1999). "Ground-based interferometry with adaptive
Betelgeuse
Astronomy device
An intensity interferometer is the name given to devices that use the Hanbury Brown and Twiss effect. In astronomy, the most common use of such an astronomical
Intensity_interferometer
Radio astronomy observatory in New Mexico, US
relocated to a number of prepared positions, allowing aperture synthesis interferometry with up to 351 independent baselines: in essence, the array acts as
Very_Large_Array
Galaxy containing the Solar System
for the Age and Mass of the Methuselah Star HD 140283 Using MESA and Interferometry and Implications for 1D Convection". Research Notes of the AAS. 5 (5):
Milky_Way
Astronomical observatory in Los Angeles County, California, US
North America, making it ideal for astronomy and in particular for interferometry. The increasing light pollution due to the growth of greater Los Angeles
Mount_Wilson_Observatory
Speed of electromagnetic waves in vacuum
their product equalling c. This is described in more detail in the "Interferometry" section below. In 1983 the metre was defined as "the length of the
Speed_of_light
American astronomer (born 1968)
He is an expert in optical (visible and near-infrared) astronomical interferometry. He currently works at the Lowell Observatory as the Director of Science
Gerard_van_Belle
inexpensive method for measuring radial velocity is "externally dispersed interferometry". Until around 2012, the radial-velocity method (also known as Doppler
Methods of detecting exoplanets
Methods_of_detecting_exoplanets
Absolute distance measurement technique
Frequency scanning interferometry (FSI) is an absolute distance measurement technique, for measuring the distance between a pair of points, along a line-of-sight
Frequency scanning interferometry
Frequency_scanning_interferometry
Natural satellite orbiting Earth
Slade, M.A. (June 4, 1999). "Topography of the Lunar Poles from Radar Interferometry: A Survey of Cold Trap Locations" (PDF). Science. 284 (5420): 1658–1660
Moon
Recording to reproduce a three-dimensional light field
a wide range of other uses, including data storage, microscopy, and interferometry. In principle, it is possible to make a hologram for any type of wave
Holography
Wolf–Rayet star in the constellation Dorado
times fainter than the cluster and can only be resolved using speckle interferometry. In 1960, a group of astronomers working at the Radcliffe Observatory
R136a1
Device to determine relative phase shift
an 1891 article was refined by Mach in an 1892 article. Mach–Zehnder interferometry has been demonstrated with electrons as well as with light. The versatility
Mach–Zehnder_interferometer
Mixing signals from many telescopes to produce images with high angular resolution
Aperture synthesis or synthesis imaging is a type of interferometry that mixes signals from a collection of telescopes to produce images having the same
Aperture_synthesis
Atom-based system to determine relative location
instrument which measures relative position using the technique of atom interferometry. It includes an ensemble of accelerometers and gyroscope based on quantum
Quantum_compass
Enclosed structure
analysis of buildings affected by mining subsidence based on Differential Interferometry (Part III)". Engineering Failure Analysis. 24: 67–76. doi:10.1016/j
Building
Imaging technique
depth-resolved images of biological tissue or other scattering media. It uses interferometry techniques to detect the amplitude and time-of-flight of reflected light
Optical_coherence_tomography
Chart of tissue blood volume changes
laser Doppler imaging of pulse waves on the surface of the hand by holographic photoplethysmography from on-axis digital interferometry.
Photoplethysmogram
Australian astronomer
astronomy, leading the development of aperture masking interferometry and astronomical optical interferometry. He is a professor of astrophysics at the School
Peter_Tuthill_(astronomer)
Austrian quantum physicist
Zeilinger's earliest work is perhaps his least known. His work on neutron interferometry has provided a foundation for his later research. As a member of the
Anton_Zeilinger
American physicist
American physicist working in semiconductors, nonlinear optics and interferometry. He holds the position of Edward Mills Purcell Distinguished Professor
David_D._Nolte
American radar astronomer (1927–2024)
astronomer and planetary scientist, who has been called "The Father of Radar Interferometry". Richard Goldstein was born in Indianapolis, Indiana, on April 11,
Richard Goldstein (astronomer)
Richard_Goldstein_(astronomer)
NASA/ESA space telescope launched in 1990
launched, specialized ground-based techniques such as aperture masking interferometry had obtained higher-resolution optical and infrared images than Hubble
Hubble_Space_Telescope
the aperture, and some telescopes may use aperture synthesis through interferometry. Telescopes designed to be used as optical astronomical interferometers
List of largest optical reflecting telescopes
List_of_largest_optical_reflecting_telescopes
Fifth planet from the Sun
(1999). "Star Formation and Extrasolar Planet Studies with Near-Infrared Interferometry on the LBT". In Guenther, Eike; Stecklum, Bringfried; Klose, Sylvio
Jupiter
Brightest star in the constellation Aquila
(2006). "Resolving the Effects of Rotation in Altair with Long-Baseline Interferometry". The Astrophysical Journal. 636 (2): 1087–1097. arXiv:astro-ph/0509236
Altair
Downward vertical movement of the Earth's surface
induced by aquifer overexploitation using advanced Differential SAR interferometry: Vega Media of the Segura river (SE Spain) case study. Remote Sensing
Subsidence
Network of radio telescopes across Europe that link together for radio interferometry
resolution observations of cosmic radio sources using very-long-baseline interferometry (VLBI). The EVN is the most sensitive VLBI array in the world, and the
European_VLBI_Network
American astronomer
world's first digitally recorded, software correlated Very Long Baseline Interferometry (VLBI) system for radio astronomy, the Green Bank Interferometer. He
Barry_G._Clark
ISO collection of international standards
Part 604: Nominal characteristics of non-contact (coherence scanning interferometry) instruments Part 605: Nominal characteristics of non-contact (point
ISO_25178
Branch of astronomy involving positioning and movements of celestial bodies
distorting effects of the Earth's atmosphere. NASA's planned Space Interferometry Mission (SIM PlanetQuest) (now cancelled) was to utilize astrometric
Astrometry
Shearography or Speckle pattern shearing interferometry is a measuring and testing method similar to holographic interferometry. It uses coherent light or coherent
Shearography
Observable quantity in imaging astronomical interferometry
an observable quantity in imaging astronomical interferometry, which allowed the use of interferometry with very long baselines. It forms the basis of
Closure_phase
also in hadron interferometry. Almost in parallel to the invention by Robert Hanbury-Brown and Richard Twiss of intensity interferometry in optics, Gerson
Bose–Einstein_correlations
Multiple scattering low coherence interferometry (ms/LCI) is an imaging technique that relies on analyzing multiply scattered light in order to capture
Multiple scattering low coherence interferometry
Multiple_scattering_low_coherence_interferometry
New Zealand biophysicist
PMC 4909539. PMID 27143509. Neutze, Richard (1995). Acceleration and optical interferometry (PhD thesis). UC Research Repository, University of Canterbury. hdl:10092/6569
Richard_Neutze
The angular diameters of stars can be measured directly using stellar interferometry. Other methods can use lunar occultations or from eclipsing binaries
List_of_largest_stars
including geometric optics, physical optics, radiometry, diffraction, and interferometry. There are different forms of the Poynting vector, the most common are
List_of_optics_equations
Angle-resolved low-coherence interferometry (a/LCI) is an emerging[when?] biomedical imaging technology which uses the properties of scattered light to
Angle-resolved low-coherence interferometry
Angle-resolved_low-coherence_interferometry
Nearest star to the Solar System
of its radiated power is at infrared wavelengths. In 2002, optical interferometry with the Very Large Telescope (VLTI) found that the angular diameter
Proxima_Centauri
American physicist (1852–1931)
often referred to as "Michelson Stellar Interferometry". This was to distinguish it from speckle interferometry, but should not be confused with the Michelson
Albert_A._Michelson
Austrian physicist (1939–2019)
(1979). Neutron Interferometry. Oxford: Clarendon Press. Rauch, H.; Badurek, G.; Zeilinger, Anton (1988). Matter Wave Interferometry. North Holland. Rauch
Helmut_Rauch
interferometer (white light) Double-slit interferometer Dual-polarization interferometry Fabry–Pérot interferometer Fizeau interferometer Fourier-transform interferometer
List of types of interferometers
List_of_types_of_interferometers
Ionizing radiation that presents as free neutrons
activation analysis Fundamental research with neutrons: Ultracold neutrons, Interferometry Fast neutron therapy Neutron capture therapy Infrastructure Neutron
Neutron_radiation
Canadian astrophysicist (1959–2026)
also worked with Stephanie A. Majewski as co-investigator on the Space Interferometry Mission, selecting a target list for the telescope, which was to study
Carl_Grillmair
Obsolete physics theory
Emission theory, also called emitter theory or ballistic theory of light, was a competing theory for the special theory of relativity, explaining the results
Emission_theory_(relativity)
Device used to measure gravitational waves
resonant antennas has occurred. A more sensitive detector uses laser interferometry to measure gravitational-wave induced motion between separated 'free'
Gravitational-wave observatory
Gravitational-wave_observatory
System of stars and interstellar matter
Combinations of multiple radio telescopes allow very-long-baseline interferometry to map the active jets emitted from active nuclei. Ultraviolet and X-ray
Galaxy
Glass tank of water demonstrating the basic properties of waves
In physics, a ripple tank is a shallow glass tank of water used to demonstrate the basic properties of waves. It is a specialized form of a wave tank.
Ripple_tank
Turkish physicist
Fields Quantum physics Institutions Cavendish Laboratory, University of Cambridge Thesis Multiparameter Entanglement and Quantum Interferometry. (2002)
Mete_Atatüre
medium restores the ideal interference conditions. In immersion Mirau interferometry, the interference patterns needed to reproduce the image are acquired
Mirau_interferometer
The Joint Institute for Very Long Baseline Interferometry European Research Infrastructure Consortium (JIVE) was established by a decision of the European
Joint Institute for Very Long Baseline Interferometry European Research Infrastructure Consortium
Joint_Institute_for_Very_Long_Baseline_Interferometry_European_Research_Infrastructure_Consortium
Star in the constellation Canis Major
long baseline interferometry) can be useful. For VY CMa this was achieved in 2008, with observations of H 2O masers using VERA interferometry from the National
VY_Canis_Majoris
Concept in human perception of sound
apparatus, although competing theories explain the results of holographic interferometry tests differently.[further explanation needed] Allan H. Frey was the
Microwave_auditory_effect
Global radio telescope array
telescopes. The EHT project combines data from several very-long-baseline interferometry (VLBI) stations around Earth, which form a combined array with an angular
Event_Horizon_Telescope
Argentine civil engineer (born 1924)
extended his pioneering developments in moiré, holography, and speckle interferometry methodologies down to the nanometer level. These efforts have enabled
Cesar_Sciammarella
Theoretical subdimensional particle
unitary operators that translate the particles. This process is known as interferometry. It can be considered analogous to the idea of braiding anyons in two
Fracton (subdimensional particle)
Fracton_(subdimensional_particle)
Chemical compound
Surface morphology changes in Al:ZnO and i-/Al:ZnO upon damp heat (DH) exposure (optical interferometry)
Indium_tin_oxide
INTERFEROMETRY
INTERFEROMETRY
INTERFEROMETRY
INTERFEROMETRY
Boy/Male
British, English
Old Leader; Old Ruler; Long Term Ruler
Girl/Female
Tamil
Samakhya | ஸமாஂகà¯à®¯à®¾
Name, Fame
Girl/Female
Australian, Danish, Dutch, French, German, Greek, Hebrew, Scandinavian
Devoted to God; Form of Elizabeth; God's Oath
Female
Italian
Feminine form Italian/Spanish Desiderio, DESIDERIA means "longing."
Male
Finnish
Finnish form of Old High German Heinrich, HEIKKI means "home-ruler."
Surname or Lastname
English
English : variant of Hickson.
Boy/Male
Hindu, Indian, Tamil
Helpful
Girl/Female
Norse
New.
Girl/Female
Hindu
Of good character, Clever in amorous sciences (Wife of Lord Krishna)
Girl/Female
Arabic, Swahili
Woman; Life
INTERFEROMETRY
INTERFEROMETRY
INTERFEROMETRY
INTERFEROMETRY
INTERFEROMETRY