Results 31 to 40 of about 20,974 (150)

Pass-through Mach-Zehnder topologies for macroscopic quantum measurements

open access: yes, 2011
Several relatively small-scale experimental setups aimed on prototyping of future laser gravitational-wave detectors and testing of new methods of quantum measurements with macroscopic mechanical objects, are under development now.
Khalili, F. Ya.
core   +1 more source

Thermal noise from optical coatings in gravitational wave detectors [PDF]

open access: yes, 2006
Gravitational waves are a prediction of Einstein's general theory of relativity. These waves are created by massive objects, like neutron stars or black holes, oscillating at speeds appreciable to the speed of light. The detectable effect on the Earth of
Abbott   +17 more
core   +1 more source

Performance of a 1200m long suspended Fabry-Perot cavity

open access: yes, 2001
Using one arm of the Michelson interferometer and the power recycling mirror of the interferometric gravitational wave detector GEO600, we created a Fabry-Perot cavity with a length of 1200 m.
A Freise   +20 more
core   +1 more source

Pulsed laser linewidth measurement using Fabry–Pérot scanning interferometer

open access: yesResults in Physics, 2016
We apply the Fabry–Pérot (FP) scanning interferometer, which is normally used for continuous wave (CW) laser linewidth measurement, for the measurement of pulsed laser linewidths.
Junwen Xue   +8 more
doaj   +1 more source

A General Approach to Optomechanical Parametric Instabilities

open access: yes, 2009
We present a simple feedback description of parametric instabilities which can be applied to a variety of optical systems. Parametric instabilities are of particular interest to the field of gravitational-wave interferometry where high mechanical quality
Abbott   +15 more
core   +1 more source

Optical vernier technique for in-situ measurement of the length of long Fabry-Perot cavities [PDF]

open access: yes, 1998
We propose a method for in-situ measurement of the length of kilometer size Fabry-Perot cavities in laser gravitational wave detectors. The method is based on the vernier, which occurs naturally when the laser incident on the cavity has a sideband.
Abramovici A   +12 more
core   +2 more sources

Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α‐Quartz

open access: yesAdvanced Materials, EarlyView.
Chiral acoustic phonons in α‐quartz are probed via Brillouin light scattering, exploiting the photon's helicity and the crystal's handedness. The interaction obeys a selection rule arising from pseudoangular momentum conservation, enabling direct optical access to phonon chirality in nonsymmorphic crystals.
Changsoo Kim   +8 more
wiley   +1 more source

Retrodirective optical system [PDF]

open access: yes, 1969
Fabry-Perot interferometer retrodirective reflector modulator for optical ...
Minott, P. O.
core   +1 more source

Stabilization of a Fabry-Perot interferometer using a suspension-point interferometer

open access: yes, 2004
A suspension-point interferometer (SPI) is an auxiliary interferometer for active vibration isolation, implemented at the suspension points of the mirrors of an interferometric gravitational wave detector.
Abbott   +21 more
core   +3 more sources

All-optically integrated photoacoustic and optical coherence tomography: A review [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2017
All-optically integrated photoacoustic (PA) and optical coherence tomography (OCT) dual-mode imaging technology that could offer comprehensive pathological information for accurate diagnosis in clinic has gradually become a promising imaging technology ...
Wei Qiao, Zhongjiang Chen
doaj   +1 more source

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