Results 81 to 90 of about 20,974 (150)

Sound Velocities and Structural Transitions of Endmember and Fe, Al, Mg, Ti‐Bearing CaSiO3 Glasses Up to 23 GPa

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract The study of silicate glasses is important to understand the physical and chemical properties of silicate melts under high‐pressure conditions relevant to planetary interiors. We conducted in situ Brillouin spectroscopy measurements on two endmember, low‐impurity CaSiO3 glasses and one Fe, Al, Mg, Ti‐bearing CaSiO3 glass up to 23 GPa.
Wenhao Su   +5 more
wiley   +1 more source

Electron interferometry in quantum Hall regime: Aharonov-Bohm effect of interacting electrons

open access: yes, 2009
An apparent h/fe Aharonov-Bohm flux period, where f is an integer, has been reported in coherent quantum Hall devices. Such sub-period is not expected for non-interacting electrons and thus is thought to result from interelectron Coulomb interaction ...
D. Yoshioka   +3 more
core   +1 more source

ZEMAX Simulations and Experimental Validation of Laser Interferometers

open access: yesPhotonics
This study presents the design, simulation, and experimental validation of six fundamental laser interferometer types: Sagnac, Mach–Zehnder, Michelson, Twyman–Green, Fizeau, and Fabry–Pérot.
Muddasir Naeem, Tayyab Imran
doaj   +1 more source

High‐Latitude Electrodynamics and Thermospheric Density Variations During the 2024 Gannon Storm

open access: yesSpace Weather, Volume 24, Issue 2, February 2026.
Abstract This study investigates high‐latitude electrodynamics and thermospheric density variations during the 2024 Gannon's storm. First, the auroral precipitation module of Auroral Spectra and High‐Latitude Electric field variabilitY, ASHLEY‐A, is improved to more accurately capture the location of auroral precipitation observed during this ...
Qingyu Zhu   +6 more
wiley   +1 more source

Development and Optimization of a Differential Signal-Based Fabry-Perot Interferometer for Nanopositioning

open access: yesTehnički Glasnik
In this study, we present the optimization of a Fabry-Perot interferometer with a differential signal utilized as the laser encoder to meet the stringent demands of nanopositioning.
Syuan-Cheng Chang   +2 more
doaj   +1 more source

Atmospheric Specifications for Infrasound Studies: 1. Operational Analyses

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 1, 16 January 2026.
Abstract Operational analysis products issued by weather services are needed for the Comprehensive Nuclear‐Test‐Ban Treaty's (CTBT) infrasound monitoring activities. They provide atmospheric specifications as high as 80 km altitude. They are used to feed propagation simulations designed to characterize sources of interest.
S. Kristoffersen   +8 more
wiley   +1 more source

Doppler shift system [PDF]

open access: yes, 1974
A system is described for measuring velocities of radiating particles based on Doppler shift. Light from the particles is directed through a narrow band optical filter to a Fabry-Perot interferometer initially tuned to a selected center line ...
Aisenberg, S.
core   +1 more source

Chronology of Fabry-Perot Interferometer Fiber-Optic Sensors and Their Applications: A Review

open access: yesSensors, 2014
Optical fibers have been involved in the area of sensing applications for more than four decades. Moreover, interferometric optical fiber sensors have attracted broad interest for their prospective applications in sensing temperature, refractive index ...
Md. Rajibul Islam   +4 more
doaj   +1 more source

One-shot x-ray detection based on the instantaneous change in the refractive index of GaAs

open access: yesAIP Advances, 2020
An interferometric semiconductor x-ray detection system is proposed in this paper. The system is based on the RadOptic effect, and it utilizes Fabry–Perot interferometry to measure radiation-induced changes in the optical refractive index of a ...
Guilong Gao   +10 more
doaj   +1 more source

Measurement of Optical Response of a Detuned Resonant Sideband Extraction Interferometer

open access: yes, 2006
We report on the optical response of a suspended-mass detuned resonant sideband extraction (RSE) interferometer with power recycling. The purpose of the detuned RSE configuration is to manipulate and optimize the optical response of the interferometer to
Alan Weinstein   +22 more
core   +1 more source

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