Results 111 to 120 of about 4,540 (191)

LISA Long-Arm Interferometry [PDF]

, 2009
An overview of LISA Long-Arm Interferometry is presented. The contents include: 1) LISA Interferometry; 2) Constellation Design; 3) Telescope Design; 4) Constellation Acquisition; 5) Mechanisms; 6) Optical Bench Design; 7) Phase Measurement Subsystem; 8)
Thorpe, James I.
core   +1 more source

Probing Stellar Kinematics with the Time-Asymmetric Hanbury Brown and Twiss Effect

The Open Journal of Astrophysics
Intensity interferometry (II) offers a powerful means to observe stellar objects with a high resolution. In this work, we demonstrate that II can also probe internal stellar kinematics by revealing a time-asymmetric Hanbury Brown and Twiss (HBT) effect ...
Lucijana Stanic, Ivan Cardea, Edoardo Charbon, Domenico Della Volpe, Daniel Florin, Andrea Guerrieri, Gilles Koziol, Etienne Lyard, Nicolas Produit, Aramis Raiola, Prasenjit Saha, Vitalii Sliusar, Achim Vollhardt, Roland Walter   +13 more
doaj   +1 more source

Subtracting and Monitoring Tilt-to-length Noise under High Differential Wavefront Sensing Noise Using Convolutional Neural Networks and Time Delay Interferometry

The Astrophysical Journal
Gravitational waves (GWs) provide a powerful tool to probe energetic astrophysical events and test fundamental physics, with space-based detectors enabling access to low-frequency signals from massive black hole mergers, extreme mass-ratio inspirals, and
Hao-Kang Chen, Pan-Pan Wang, Cheng-Gang Shao   +2 more
doaj   +1 more source

Coronagraphic time-delay interferometry: characterization and updated geometric properties [PDF]

International audienceThe Laser Interferometer Space Antenna (LISA) will be a space-borne gravitational wave (GW) detector to be launched in the next decade.
Mauger, François, Lemière, Yves, Barroso, Raissa Costa, Baghi, Quentin   +3 more
core   +1 more source

Metrics of Astrometric Variability in the International Celestial Reference Frame. I. Statistical Analysis and Selection of the Most Variable Sources

The Astrophysical Journal Supplement Series
Using very long baseline interferometry data for the sources that comprise the third International Celestial Reference Frame (ICRF3), we examine the quality of the formal source-position uncertainties of ICRF3 by determining the excess astrometric ...
Phil Cigan, Valeri V. Makarov, Nathan J. Secrest, David Gordon, Megan C. Johnson, Sebastien Lambert   +5 more
doaj   +1 more source

Observable-based reformulation of time-delay interferometry

Physical Review D
Spaceborne gravitational-wave observatories utilize a postprocessing technique known as time-delay interferometry (TDI) to reduce the otherwise overwhelming laser frequency noise by around 8 orders of magnitude. While, in its traditional form, TDI considers the spacecraft as point masses, recent studies have enhanced this simplified scenario by ...
Kohei Yamamoto, Jan Niklas Reinhardt, Olaf Hartwig   +2 more
openaire   +3 more sources

Optimal design of interpolation methods for time-delay interferometry [PDF]

International audienceTime-delay interferometry (TDI) suppresses laser frequency noise by forming linear combinations of time-shifted interferometric measurements. The time-shift operation is implemented by interpolating discretely sampled data.
Lilley, Marc, Hees, A., Hartwig, Olaf, Staab, M., Woan, G., Staab, Martin, Woan, Graham, Wolf, Peter, Bayle, Jean-Baptiste, Lilley, M., Wolf, P., Hees, Aurélien, Hartwig, O., Bayle, J.   +13 more
core   +2 more sources

Alternative approach to time-delay interferometry with an optical frequency comb

Physical Review Applied
Spaceborne gravitational wave observatories, exemplified by the Laser Interferometer Space Antenna (LISA) mission, are designed to remove laser noise and clock noise from interferometric phase measurements in postprocessing. The planned observatories will utilize electro-optic modulators (EOMs) to encode the onboard clock timing onto the beam phase ...
Kohei Yamamoto, Hannah Tomio, Charlotte Zehnder, Kenji Numata, Holly Leopardi   +4 more
openaire   +2 more sources

Fast measurement of group index variation with optimum precision using Hong–Ou–Mandel interferometry

APL Quantum
Hong–Ou–Mandel (HOM) interferometry has emerged as a valuable means for quantum sensing applications, particularly in measuring physical parameters that influence the relative optical delay between photon pairs.
Sandeep Singh, Vimlesh Kumar, G. K. Samanta   +2 more
doaj   +1 more source

Continuum-electron interferometry for enhancement of photoelectron circular dichroism and measurement of bound, free, and mixed contributions to chiral response

Physical Review Research
We develop photoelectron interferometry based on laser-assisted extreme ultraviolet ionization for flexible and robust control of photoelectron circular dichroism in randomly oriented chiral molecules.
R. Esteban Goetz, Alexander Blech, Corbin Allison, Christiane P. Koch, Loren Greenman   +4 more
doaj   +1 more source