Results 31 to 40 of about 735,472 (273)
Absolute angular measurement with optical frequency comb using a dispersive interferometry.
Optics Express, 2020 We have demonstrated a simple method to measure high-precision absolute angular displacement using an optical frequency comb (OFC). The dispersive interferometry with parallel configuration can take advantage of its large non-ambiguity range and achieve ...
Xu Liang +6 more
semanticscholar +1 more source
Nanometer scale titanium surface texturing are detected by signaling pathways involving transient FAK and Src activations. [PDF]
PLoS ONE, 2014 BACKGROUND:It is known that physico/chemical alterations on biomaterial surfaces have the capability to modulate cellular behavior, affecting early tissue repair.
Willian F Zambuzzi +9 more
doaj +1 more source
Simultaneous Water Vapor and Dry Air Optical Path Length Measurements and Compensation with the Large Binocular Telescope Interferometer [PDF]
, 2016 The Large Binocular Telescope Interferometer uses a near-infrared camera to measure the optical path length variations between the two AO-corrected apertures and provide high-angular resolution observations for all its science channels (1.5-13 $\mu$m ...
Böhm, M. +16 more
core +4 more sources
Spectral-phase interferometry for direct electric-field reconstruction applied to seeded extreme-ultraviolet free-electron lasers [PDF]
, 2015 We present a setup for complete characterization of femtosecond pulses generated by seeded free-electron lasers (FEL's) in the extreme-ultraviolet spectral region.
Dacasa, Hugo +8 more
core +3 more sources
Synthetic dispersion interferometry for relative atmospheric pressure sensing
Optics Express, 2023 We present a modified version of the two-arm, two-color, single second harmonic generation heterodyne dispersion interferometer, as introduced by Irby et. al. [Rev. Sci. Instrum. 70, 699 (1999) 10.1063/1.1149489]. The amount of optical elements is reduced and digital in-phase and quadrature demodulation is used to retrieve the phase shift from a single
Uittenbosch, Hugo +3 more
openaire +3 more sources
Journal of Astronomical Telescopes Instruments and Systems, 2021 We demonstrate a key step along a technical route to achieving cm/s scale accuracy for astronomical spectrographs over long (multi-year) time scales, which is critical for the Doppler characterization of Earth sized exoplanets, and measurement of small ...
D. Erskine
semanticscholar +1 more source
Nanomaterials, 2022 This study characterizes and determines the corrosion resistance of Mn-Ce conversion coated LZ91 magnesium alloy that undergoes pretreatments. It is challenging to process large and curved workpieces in the industry because the geometric shapes are ...
Chun-Wei Chen +5 more
doaj +1 more source
Quantum Hysteresis in Coupled Light–Matter Systems
Entropy, 2016 We investigate the non-equilibrium quantum dynamics of a canonical light–matter system—namely, the Dicke model—when the light–matter interaction is ramped up and down through a cycle across the quantum phase transition. Our calculations reveal a rich set
Fernando J. Gómez-Ruiz +4 more
doaj +1 more source
Enhanced spectral sensitivity of a chip-scale photonic-crystal slow-light interferometer [PDF]
, 2016 We experimentally demonstrate that the spectral sensitivity of a Mach-Zehnder (MZ) interferometer can be enhanced through structural slow light. We observe a 20 times enhancement by placing a dispersion-engineered-slow-light photonic-crystal waveguide in
Awan +16 more
core +3 more sources
Externally dispersed interferometry for planetary studies [PDF]
SPIE Proceedings, 2005 We describe a plan to study the radial velocity of low mass stars and brown dwarfs using a combination of interferometry and multichannel dispersive spectroscopy, Externally Dispersed Interferometry (EDI). The EDI technology allows implementation of precision velocimetry and spectroscopy on existing moderate-resolution echelle or linear grating ...
Erskine, D. J. +3 more
openaire +1 more source