Results 21 to 30 of about 184,659 (276)

Application of OCT to examination of easel paintings [PDF]

open access: yes, 2004
We present results of applying low coherence interferometry to gallery paintings. Infrared low coherence interferometry is capable of non-destructive examination of paintings in 3D, which shows not only the structure of the varnish layer but also the ...
Cucu, R.   +9 more
core   +1 more source

Scalable, tailored purity heralded single-photon source enabled by second harmonic generation of GHz-rate ultrashort pulsed laser [PDF]

open access: yesAPL Quantum
We demonstrate a miniaturized, scalable high rate, pulsed single-photon source in the telecom band obtained by heralding a spontaneous parametric downconversion source pumped with a highly tunable GHz repetition rate pulsed laser in an all-guided wave ...
Sangeeta, Bhaskar Kanseri
doaj   +1 more source

Possible detection of nonclassical primordial gravitational waves with Hanbury Brown - Twiss interferometry [PDF]

open access: yes, 2018
We consider possible detection of nonclassicality of primordial gravitational waves (PGWs) by applying Hanbury Brown - Twiss (HBT) interferometry to cosmology.
Kanno, Sugumi, Soda, Jiro
core   +2 more sources

Quantum Tests of the Foundations of General Relativity [PDF]

open access: yes, 1998
The role of the equivalence principle in the context of non-relativistic quantum mechanics and matter wave interferometry, especially atom beam interferometry, will be discussed.
Audretsch J   +15 more
core   +3 more sources

Application of GNSS Interferometric Reflectometry for the Estimation of Lake Ice Thickness

open access: yesRemote Sensing, 2020
Lake ice thickness is a sensitive indicator of climate change largely through its dependency on near-surface air temperature and on-ice snow mass (depth and density). Monitoring of the seasonal variations and trends in ice thickness is also important for
Yusof Ghiasi   +6 more
doaj   +1 more source

Narrow linewidth single laser source system for onboard atom interferometry [PDF]

open access: yes, 2014
A compact and robust laser system for atom interferometry based on a frequency-doubled telecom laser is presented. Thanks to an original stabilization architecture on a saturated absorption setup, we obtain a frequency-agile laser system allowing fast ...
Bidel, Yannick   +6 more
core   +2 more sources

Intra- and interobserver reliability of ocular surface analyzer LacryDiag® [PDF]

open access: yesInternational Journal of Ophthalmology
AIM: To invastigate intra- and interobserver reliability of interferometry, tear meniscus height (TMH) measurement and meibography (MBG) of an ocular surface analyzer, LacryDiag (Quantel Medical, France).
Eva Kos   +5 more
doaj   +1 more source

Spectrally Resolved White Light Interferometry for NaCl Aqueous Solutions Refractive Index Measurement

open access: yesFrontiers in Physics, 2021
In this work, a technique for comparing refractive indices for solutions of low concentrations has been developed. The method of direct spectral detection developed by the authors has been using.
Igor G. Likhachev   +2 more
doaj   +1 more source

A Robust Interferometry Against Imperfections Base on Weak Value Amplification

open access: yes, 2018
The optical interferometry has been widely used in various high precision applications. Usually, the minimum precision of an interferometry is limited by various technique noises in practice.
Fang, Chen   +2 more
core   +1 more source

Validation of the Exoplanet Kepler-21b using PAVO/CHARA Long-Baseline Interferometry [PDF]

open access: yes, 2012
We present long-baseline interferometry of the Kepler exoplanet host star HD179070 (Kepler-21) using the PAVO beam combiner at the CHARA Array. The visibility data are consistent with a single star and exclude stellar companions at separations ~1-1000 ...
Antoine Mérand   +51 more
core   +2 more sources

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