Elastic modes frequencies in the mirrors with 'ears' for parametric oscillatory instability in advanced LIGO interferometer - INSPIRE

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Elastic modes frequencies in the mirrors with 'ears' for parametric oscillatory instability in advanced LIGO interferometer

S.E. Strigin
(
- Moscow State U.
)

2008

4 pages

Published in:

Phys.Lett.A 372 (2008) 6305-6308

DOI:

10.1016/j.physleta.2008.07.082

reference search7 citations

Citations per year

Abstract: (Elsevier)

We discuss the importance of accurate numerical calculation of elastic modes in the mirrors with suspension ears in advanced LIGO interferometer to enable precise predictions of parametric oscillatory instability problem. We show that ears of test masses produce additional shift of elastic modes frequencies which is larger than relaxation rate of optical modes. These shifts may increase the possibility of parametric oscillatory instability.

stability
mirror: oscillation
interferometer
optics
numerical calculations
mass: perturbation
Parametric oscillatory instability
LIGO interferometer
43.40.+s
42.65.Es

References(17)

Figures(0)

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