Mechanical dissipation in silicon flexures

Reid, S.; Cagnoli, G.; Crooks, D. R. M.; Hough, J.; Murray, P. G.; Rowan, S.; Fejer, M. M.; Route, R.; Zappe, S.

doi:10.1016/j.physleta.2005.10.103

Cited by 83 publications

(75 citation statements)

References 22 publications

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“…Assuming that all other sources of loss [31] two samples, the dissipation in the coating layer can be calculated from the difference in the mechanical loss of the coated and uncoated cantilevers.…”

Section: Methodsmentioning

confidence: 99%

Measurements of a low-temperature mechanical dissipation peak in a single layer of Ta ₂ O ₅ doped with TiO ₂

Martin

Armandula

Comtet

et al. 2008

Class. Quantum Grav.

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Thermal noise arising from mechanical dissipation in oxide coatings is a major limitation to many precision measurement systems, including optical frequency standards, high-resolution optical spectroscopy and interferometric gravity wave detectors. Presented here are measurements of dissipation as a function of temperature between 7 K and 290 K in ion-beam-sputtered Ta 2 O 5 doped with TiO 2 , showing a loss peak at 20 K. Analysis of the peak provides the first evidence of the source of dissipation in doped Ta 2 O 5 coatings, leading to possibilities for the reduction of thermal noise effects.

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Section: Methodsmentioning

confidence: 99%

Measurements of a low-temperature mechanical dissipation peak in a single layer of Ta ₂ O ₅ doped with TiO ₂

Martin

Armandula

Comtet

et al. 2008

Class. Quantum Grav.

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“…Currently there are two candidate materials for this role: Sapphire and Silicon. Sapphire has been selected to realise the suspension fibres of LCGT both for its dissipation [40] and for its thermal conductivity properties [41]; Silicon, instead, has been preliminary studied within the ILIAS project and it has been found suitable to realise both suspension fibres [42] and ribbons [43]. However, it is matter of fact that currently only sapphire has been used to realize a full cryogenic suspension and the usage of Silicon still needs a successful R&D activity.…”

Section: Suspension Thermal Noisementioning

confidence: 99%

Toward a third generation of gravitational wave observatories

Punturo

Lück

2010

Gen Relativ Gravit

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Large gravitational wave interferometric detectors, like Virgo and LIGO, demonstrated the capability to reach their design sensitivity, but to transform these machines into an effective observational instrument for gravitational wave astronomy a large improvement in sensitivity is required. Advanced detectors in the near future and third generation observatories in slightly more than one decade will open the possibility to perform gravitational wave astronomical observations from the Earth. An overview of the technological progress needed to realize a third generation observatory, like the Einstein Telescope (ET), and a possible evolution scenario are discussed in this paper.

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“…dominating cause of acoustic mode frequency drift [42,43]. The near-linear relation [41] ΔYT∕ΔT ≈ −7 MPa∕K allows the mode frequency to be used as a temperature probe.…”

Section: Predicted Performance Of a Practical Nsi Cavity Setupmentioning

confidence: 99%

Near-self-imaging cavity for three-mode optoacoustic parametric amplifiers using silicon microresonators

Liu

Torres

et al. 2014

Appl. Opt.

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Three-mode optoacoustic parametric amplifiers (OAPAs), in which a pair of photon modes are strongly coupled to an acoustic mode, provide a general platform for investigating self-cooling, parametric instability and very sensitive transducers. Their realization requires an optical cavity with tunable transverse modes and a high quality-factor mirror resonator. This paper presents the design of a table-top OAPA based on a near-self-imaging cavity design, using a silicon torsional microresonator. The design achieves a tuning coefficient for the optical mode spacing of 2.46 MHz∕mm. This allows tuning of the mode spacing between amplification and self-cooling regimes of the OAPA device. Based on demonstrated resonator parameters (frequencies ∼400 kHz and quality-factors ∼7.5 × 10 5 ) we predict that the OAPA can achieve parametric instability with 1.6 μW of input power and mode cooling by a factor of 1.9 × 10 4 with 30 mW of input power.

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Mechanical dissipation in silicon flexures

Cited by 83 publications

References 22 publications

Measurements of a low-temperature mechanical dissipation peak in a single layer of Ta ₂ O ₅ doped with TiO ₂

Measurements of a low-temperature mechanical dissipation peak in a single layer of Ta ₂ O ₅ doped with TiO ₂

Toward a third generation of gravitational wave observatories

Near-self-imaging cavity for three-mode optoacoustic parametric amplifiers using silicon microresonators

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Mechanical dissipation in silicon flexures

Cited by 83 publications

References 22 publications

Measurements of a low-temperature mechanical dissipation peak in a single layer of Ta 2 O 5 doped with TiO 2

Measurements of a low-temperature mechanical dissipation peak in a single layer of Ta 2 O 5 doped with TiO 2

Toward a third generation of gravitational wave observatories

Near-self-imaging cavity for three-mode optoacoustic parametric amplifiers using silicon microresonators

Contact Info

Product

Resources

About

Measurements of a low-temperature mechanical dissipation peak in a single layer of Ta ₂ O ₅ doped with TiO ₂

Measurements of a low-temperature mechanical dissipation peak in a single layer of Ta ₂ O ₅ doped with TiO ₂