Results 11 to 20 of about 27,952 (237)

Detection of Periodic Disturbances in LOFAR Calibration Solutions

open access: yesRemote Sensing, 2022
The Earth’s ionosphere is a highly variable medium on a wide range of spatio-temporal scales. The responsiveness of plasma to the geomagnetic field and its changes gives rise to anisotropy, which may introduce wave-like characteristics while scanning the
Katarzyna Beser   +3 more
doaj   +1 more source

Time-Delay Interferometry [PDF]

open access: yesLiving Reviews in Relativity, 2005
AbstractEqual-arm interferometric detectors of gravitational radiation allow phase measurements many orders of magnitude below the intrinsic phase stability of the laser injecting light into their arms. This is because the noise in the laser light is common to both arms, experiencing exactly the same delay, and thus cancels when it is differenced at ...
Massimo Tinto, Sanjeev V. Dhurandhar
openaire   +9 more sources

Broadband spectral shaping using nematic liquid crystal

open access: yesResults in Physics, 2019
We demonstrate what is, to our knowledge, the first implementation of nematic liquid crystal (LC) for spectral shaping of broadband light fields. A LC cell of several microns thickness is placed between a polarizer and an analyzer.
Bhaskar Kanseri   +2 more
doaj   +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

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

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

Absolute Measurement of the Refractive Index of Water by a Mode-Locked Laser at 518 nm

open access: yesSensors, 2018
In this paper, we demonstrate a method using a frequency comb, which can precisely measure the refractive index of water. We have developed a simple system, in which a Michelson interferometer is placed into a quartz-glass container with a low expansion ...
Zhaopeng Meng   +4 more
doaj   +1 more source

Effect of oceanic turbulence on the statistical features of electromagnetic optical beam

open access: yesResults in Physics
This work deals with the intricate problem of electromagnetic optical beam propagation through oceanic turbulence. Using the extended Huygens–Fresnel principle, numerically, the behavior of the degree of cross-polarization (DOCP), electromagnetic degree ...
Hemant Kumar Singh   +2 more
doaj   +1 more source

Engineering tandem VHHs to target different epitopes to enhance antibody‐dependent cell‐mediated cytotoxicity

open access: yesFEBS Open Bio, EarlyView.
Tandem VHH targeting distinct EGFR epitopes were engineered into a monovalent bispecific antibody (7D12‐EGA1‐Fc) with more potent ADCC without increasing affinity to EGFR. Structural modeling of 7D12‐EGA1‐Fc showed cross‐linking of separate EGFR domains to enhance CD16a engagement on NK cells.
Yuqiang Xu   +5 more
wiley   +1 more source

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