Results 101 to 110 of about 519,355 (198)

Creating Ferromagnetic Insulating La0.9Ba0.1MnO3 Thin Films by Tuning Lateral Coherence Length. [PDF]

open access: yesACS Appl Mater Interfaces, 2021
Yun C   +10 more
europepmc   +1 more source

The role of pump coherence in two-photon interferometry

open access: yes, 2010
We use a parametric down-conversion source pumped by a short coherence-length continuous-wave (CW) diode laser to perform two-photon interferometry in an intermediate regime between the more familiar Franson-type experiments with a long coherence-length ...
Hendrickson, S. M.   +2 more
core   +1 more source

Coherence lengths and quantum entanglement in radiative capture reactions

open access: yesScientific Reports
Coherence length ( $$L_c$$ ) is a key concept in quantum mechanics, representing the ability of a quantum system to maintain well-defined phase relationships over time.
Mehdi Mirzaee, Hossein Sadeghi
doaj   +1 more source

Searching for Ultra-light Dark Matter in Spatial Correlations of White Dwarf Structure

open access: yesThe Astrophysical Journal
If dark matter is ultra-light and has certain Standard Model interactions, it can change the mass–radius relation of white dwarf (WD) stars. The coherence length of ultra-light dark matter (ULDM) imparts spatial correlations in deviations from the ...
Nicole R. Crumpler   +3 more
doaj   +1 more source

Comparison of Eye Axial Length Measurements Taken Using Partial Coherence Interferometry and OCT Biometry

open access: yesVision
This study evaluates the inter-device measurement properties of partial coherence interferometry (PCI) and spectral domain optical coherence tomography (SD-OCT) in measuring axial length, particularly for myopia management.
Nicola Rizzieri, Alessio Facchin
doaj   +1 more source

Frequency-modulated continuous-wave laser ranging beyond the limits of bandwidth and phase noise

open access: yesAPL Photonics
Frequency-modulated continuous-wave (FMCW) laser ranging typically applies an interferometer and linear frequency-modulated (LFM) signals to measure the distance, in which precision and resolution are limited by the phase noise of laser and the bandwidth
Xiuyuan Sun   +5 more
doaj   +1 more source

Controlling nonlinear rogue-wave formation using the coherence length of phase noise

open access: yesPhysical Review Research
Weak phase noise present on an optical field can be amplified by a self-focusing nonlinearity (n_{2}>0) and form intense “rogue-wave” features. Here, we study the effect of the coherence length (or grain size) of this phase noise on the likelihood of ...
Saumya Choudhary   +3 more
doaj   +1 more source

Time domain diffuse correlation spectroscopy: modeling the effects of laser coherence length and instrument response function. [PDF]

open access: yesOpt Lett, 2018
Cheng X   +9 more
europepmc   +1 more source

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