Demonstration of a switchable damping system to allow low-noise operation of high-Q low-mass suspension systems

Jan-Simon Hennig; Bryan W. Barr; Angus S. Bell; William Cunningham; Stefan L. Danilishin; Peter Dupej; Christian Graf; James Hough; Sabina H. Huttner; Russell Jones; Sean S. Leavey; Daniela Pascucci; Martin Sinclair; Borja Sorazu; Andrew Spencer; Sebastian Steinlechner; Kenneth A. Strain; Jennifer Wright; Teng Zhang; Stefan Hild

doi:10.1103/PhysRevD.96.122005

Demonstration of a switchable damping system to allow low-noise operation of high-Q low-mass suspension systems

Jan-Simon Hennig^*, Bryan W. Barr, Angus S. Bell, William Cunningham, Stefan L. Danilishin, Peter Dupej, Christian Graf, James Hough, Sabina H. Huttner, Russell Jones, Sean S. Leavey, Daniela Pascucci, Martin Sinclair, Borja Sorazu, Andrew Spencer, Sebastian Steinlechner, Kenneth A. Strain, Jennifer Wright, Teng Zhang, Stefan Hild

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Low-mass suspension systems with high-Q pendulum stages are used to enable quantum radiation pressure noise limited experiments. Utilizing multiple pendulum stages with vertical blade springs and materials with high-quality factors provides attenuation of seismic and thermal noise; however, damping of these high-Q pendulum systems in multiple degrees of freedom is essential for practical implementation. Viscous damping such as eddy-current damping can be employed, but it introduces displacement noise from force noise due to thermal fluctuations in the damping system. In this paper we demonstrate a passive damping system with adjustable damping strength as a solution for this problem that can be used for low-mass suspension systems without adding additional displacement noise in science mode. We show a reduction of the damping factor by a factor of 8 on a test suspension and provide a general optimization for this system.

Original language	English
Article number	122005
Number of pages	5
Journal	Physical Review D
Volume	96
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevD.96.122005
Publication status	Published - 26 Dec 2017
Externally published	Yes

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10.1103/PhysRevD.96.122005

Cite this

Hennig, J.-S., Barr, B. W., Bell, A. S., Cunningham, W., Danilishin, S. L., Dupej, P., Graf, C., Hough, J., Huttner, S. H., Jones, R., Leavey, S. S., Pascucci, D., Sinclair, M., Sorazu, B., Spencer, A., Steinlechner, S., Strain, K. A., Wright, J., Zhang, T., & Hild, S. (2017). Demonstration of a switchable damping system to allow low-noise operation of high-Q low-mass suspension systems. Physical Review D, 96(12), Article 122005. https://doi.org/10.1103/PhysRevD.96.122005

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title = "Demonstration of a switchable damping system to allow low-noise operation of high-Q low-mass suspension systems",

abstract = "Low-mass suspension systems with high-Q pendulum stages are used to enable quantum radiation pressure noise limited experiments. Utilizing multiple pendulum stages with vertical blade springs and materials with high-quality factors provides attenuation of seismic and thermal noise; however, damping of these high-Q pendulum systems in multiple degrees of freedom is essential for practical implementation. Viscous damping such as eddy-current damping can be employed, but it introduces displacement noise from force noise due to thermal fluctuations in the damping system. In this paper we demonstrate a passive damping system with adjustable damping strength as a solution for this problem that can be used for low-mass suspension systems without adding additional displacement noise in science mode. We show a reduction of the damping factor by a factor of 8 on a test suspension and provide a general optimization for this system.",

author = "Jan-Simon Hennig and Barr, {Bryan W.} and Bell, {Angus S.} and William Cunningham and Danilishin, {Stefan L.} and Peter Dupej and Christian Graf and James Hough and Huttner, {Sabina H.} and Russell Jones and Leavey, {Sean S.} and Daniela Pascucci and Martin Sinclair and Borja Sorazu and Andrew Spencer and Sebastian Steinlechner and Strain, {Kenneth A.} and Jennifer Wright and Teng Zhang and Stefan Hild",

year = "2017",

month = dec,

day = "26",

doi = "10.1103/PhysRevD.96.122005",

language = "English",

volume = "96",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "12",

}

Hennig, J-S, Barr, BW, Bell, AS, Cunningham, W, Danilishin, SL, Dupej, P, Graf, C, Hough, J, Huttner, SH, Jones, R, Leavey, SS, Pascucci, D, Sinclair, M, Sorazu, B, Spencer, A, Steinlechner, S, Strain, KA, Wright, J, Zhang, T & Hild, S 2017, 'Demonstration of a switchable damping system to allow low-noise operation of high-Q low-mass suspension systems', Physical Review D, vol. 96, no. 12, 122005. https://doi.org/10.1103/PhysRevD.96.122005

TY - JOUR

T1 - Demonstration of a switchable damping system to allow low-noise operation of high-Q low-mass suspension systems

AU - Hennig, Jan-Simon

AU - Barr, Bryan W.

AU - Bell, Angus S.

AU - Cunningham, William

AU - Danilishin, Stefan L.

AU - Dupej, Peter

AU - Graf, Christian

AU - Hough, James

AU - Huttner, Sabina H.

AU - Jones, Russell

AU - Leavey, Sean S.

AU - Pascucci, Daniela

AU - Sinclair, Martin

AU - Sorazu, Borja

AU - Spencer, Andrew

AU - Steinlechner, Sebastian

AU - Strain, Kenneth A.

AU - Wright, Jennifer

AU - Zhang, Teng

AU - Hild, Stefan

PY - 2017/12/26

Y1 - 2017/12/26

N2 - Low-mass suspension systems with high-Q pendulum stages are used to enable quantum radiation pressure noise limited experiments. Utilizing multiple pendulum stages with vertical blade springs and materials with high-quality factors provides attenuation of seismic and thermal noise; however, damping of these high-Q pendulum systems in multiple degrees of freedom is essential for practical implementation. Viscous damping such as eddy-current damping can be employed, but it introduces displacement noise from force noise due to thermal fluctuations in the damping system. In this paper we demonstrate a passive damping system with adjustable damping strength as a solution for this problem that can be used for low-mass suspension systems without adding additional displacement noise in science mode. We show a reduction of the damping factor by a factor of 8 on a test suspension and provide a general optimization for this system.

AB - Low-mass suspension systems with high-Q pendulum stages are used to enable quantum radiation pressure noise limited experiments. Utilizing multiple pendulum stages with vertical blade springs and materials with high-quality factors provides attenuation of seismic and thermal noise; however, damping of these high-Q pendulum systems in multiple degrees of freedom is essential for practical implementation. Viscous damping such as eddy-current damping can be employed, but it introduces displacement noise from force noise due to thermal fluctuations in the damping system. In this paper we demonstrate a passive damping system with adjustable damping strength as a solution for this problem that can be used for low-mass suspension systems without adding additional displacement noise in science mode. We show a reduction of the damping factor by a factor of 8 on a test suspension and provide a general optimization for this system.

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DO - 10.1103/PhysRevD.96.122005

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