In-process fast surface measurement using wavelength scanning interferometry [PDF]
, 2012 A wavelength scanning interferometry system for fast areal surface measurement of micro and nano-scale surfaces which is immune to environmental noise is introduced in this paper. It can be used for surface measurement of discontinuous surface profiles
Gao, F. +5 more
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Spectral Domain Low- Coherence Interferometry for On-line Surface Inspection [PDF]
, 2013 We present an on-line surface measurement technique based on spectral domain low-coherence interferometry (SD-LCI), which can obtain a one dimensional surface profile with just one shot.
Gao, F. +8 more
core +3 more sources
Comparison of fast Fourier transform and convolution in wavelength scanning interferometry [PDF]
, 2011 The assessment of surface finish has become increasingly important in the field of precision engineering. Optical interferometry has been widely used for surface measurement due to the advantages of non-contact and high accuracy interrogation.
Gao, F. +7 more
core +1 more source
Fast surface measurement using wavelength scanning interferometry with compensation of environmental noise [PDF]
, 2010 We introduce a new optical interferometry system for fast areal surface measurement of microscale and nanoscale surfaces that are immune to environmental noise.
Gao, F. +5 more
core +1 more source
Scalable, tailored purity heralded single-photon source enabled by second harmonic generation of GHz-rate ultrashort pulsed laser [PDF]
APL QuantumWe 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
Application of GNSS Interferometric Reflectometry for the Estimation of Lake Ice Thickness
Remote 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
Demonstration of SAR Interferometry under Crossing Orbits using TerraSAR-X and TanDEM-X [PDF]
, 2011 This paper discusses cross-track SAR interferometry under crossing orbits. The underlaying theory is briefly outlined, showing that a crossing angle between the ground tracks needs to be compensated by applying different squint angles in order to ...
Wollstadt, Steffen +13 more
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Complex Master Slave Interferometry [PDF]
, 2016 A general theoretical model is developed to improve the novel Spectral Domain Interferometry method denoted as Master/Slave (MS) Interferometry. In this model, two functions, g and h are introduced to describe the modulation chirp of the channeled ...
Leick, Lasse +5 more
core +1 more source
Frontiers 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
V-groove measurement with white light interferometry [PDF]
, 2006 White Light Interferometry (WLI) provides a fast and convenient means to measure surface profile. With sub-nanometre resolution and non-contacting operation, WLI is also a promising means to estimate surface roughness parameters.
Gao, F., Coupland, J. M., Petzing, J.
core +3 more sources