@article{b6c033685aa0473384f0036a1ac893f0,
title = "Advanced LIGO",
abstract = "The Advanced LIGO gravitational wave detectors are second-generation instruments designed and built for the two LIGO observatories in Hanford, WA and Livingston, LA, USA. The two instruments are identical in design, and are specialized versions of a Michelson interferometer with 4 km long arms. As in Initial LIGO, Fabry-Perot cavities are used in the arms to increase the interaction time with a gravitational wave, and power recycling is used to increase the effective laser power. Signal recycling has been added in Advanced LIGO to improve the frequency response. In the most sensitive frequency region around 100 Hz, the design strain sensitivity is a factor of 10 better than Initial LIGO. In addition, the low frequency end of the sensitivity band is moved from 40 Hz down to 10 Hz. All interferometer components have been replaced with improved technologies to achieve this sensitivity gain. Much better seismic isolation and test mass suspensions are responsible for the gains at lower frequencies. Higher laser power, larger test masses and improved mirror coatings lead to the improved sensitivity at mid and high frequencies. Data collecting runs with these new instruments are planned to begin in mid-2015.",
keywords = "gravitational waves, interferometers, optics, seismic isolation",
author = "{LIGO Scientific Collaboration} and J. Aasi and Abbott, {B. P.} and R. Abbott and T. Abbott and Abernathy, {M. R.} and K. Ackley and C. Adams and T. Adams and P. Addesso and Adhikari, {R. X.} and V. Adya and C. Affeldt and N. Aggarwal and Aguiar, {O. D.} and A. Ain and P. Ajith and A. Alemic and B. Allen and D. Amariutei and Anderson, {S. B.} and Anderson, {W. G.} and K. Arai and Araya, {M. C.} and C. Arceneaux and Areeda, {J. S.} and G. Ashton and S. Ast and Aston, {S. M.} and P. Aufmuth and C. Aulbert and Aylott, {B. E.} and S. Babak and Baker, {P. T.} and Ballmer, {S. W.} and Barayoga, {J. C.} and M. Barbet and S. Barclay and Barish, {B. C.} and D. Barker and B. Barr and L. Barsotti and J. Bartlett and Barton, {M. A.} and I. Bartos and R. Bassiri and Batch, {J. C.} and C. Baune and B. Behnke and Bell, {A. S.} and J. Scheuer",
note = "Publisher Copyright: {\textcopyright} 2015 IOP Publishing Ltd.",
year = "2015",
month = apr,
day = "9",
doi = "10.1088/0264-9381/32/7/074001",
language = "אנגלית",
volume = "32",
journal = "Classical and Quantum Gravity",
issn = "0264-9381",
publisher = "IOP Publishing Ltd.",
number = "7",
}