journal article·2016-11-16Open access

Development of Mirror Coatings for Gravitational Wave Detectors

Stuart Reid, Iain Martin

Coatings· Volume 6· Issue 4

Abstract

The first detections of gravitational waves, GW150914 and GW151226, were associated with the coalescence of stellar mass black holes, heralding the opening of an entirely new way to observe the Universe. Many decades of development were invested to achieve the sensitivities required to observe gravitational waves, with peak strains associated with GW150914 at the level of 10−21. Gravitational wave detectors currently operate as modified Michelson interferometers, where thermal noise associated with the highly reflective mirror coatings sets a critical limit to the sensitivity of current and future instruments. This article presents an overview of the mirror coating development relevant to gravitational wave detection and the prospective for future developments in the field.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Pulsars and Gravitational Waves Research · Geophysics and Sensor Technology · Cold Atom Physics and Bose-Einstein Condensates

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

SUPA, Institute of Thin Films, Sensors & Imaging, School of Engineering and Computing, University of the West of Scotland, Paisley PA1 2BE, UK

SUPA, Institute for Gravitational Research, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK

Funding

STFC · Royal Society

References (85)

Show source-provided references
1. Die Grundlage der allgemeinen Relativitätstheorie10.1002/andp.19163540702 ↗
2. The LIGO Scientific Collaboration (2015). Advanced LIGO. Class. Quantum Gravity, 32, 074001.10.1088/0264-9381/32/7/074001 ↗
3. Observation of gravitational waves from a binary black hole merger10.1103/PhysRevLett.116.061102 ↗
4. GW151226: Observation of gravitational waves from a 22-solar-mass binary black hole coalescence10.1103/PhysRevLett.116.241103 ↗
5. Gravitational wave detection by interferometry (ground and space)10.12942/lrr-2011-5 ↗
6. Limits to the measurement of displacement in an interferometric gravitational radiation detector10.1088/0022-3735/11/7/030 ↗
7. Gustafson, E.K., Shoemaker, D., Strain, K., and Weiss, R. LSC White Paper on Detector Research and Development, LIGO T990080-00-D. Available online: https://dcc.ligo.org/T990080/public.
8. Ultra-High Quality Cavity with 1.5 ppm Loss at 1064 nm10.1007/s10043-996-0369-y ↗
9. Sub-dekahertz ultraviolet spectroscopy of 199Hg+10.1103/PhysRevLett.85.2462 ↗
10. Compact, thermal-noise-limited optical cavity for diode laser stabilization at 1 × 101510.1364/OL.32.000641 ↗
11. Thermal-noise limited optical cavity10.1103/PhysRevA.77.033847 ↗
12. The coherence of qubits based on single Ca+ ions10.1088/0953-4075/36/3/319 ↗
13. Trapped atoms in cavity QED: Coupling quantized light and matter10.1088/0953-4075/38/9/007 ↗
14. Improved sensitivity in a gravitational wave interferometer and implications for LIGO10.1016/0375-9601(96)00377-5 ↗
15. Status of the GEO 600 detector10.1088/0264-9381/23/8/S10 ↗
16. The status of VIRGO10.1088/0264-9381/23/8/S09 ↗
17. Detector configuration of KAGRA—The Japanese cryogenic gravitational-wave detector10.1088/0264-9381/29/12/124007 ↗
18. A brief account of microscopical observations made in the months of June, July and August, on the particles contained in the pollen of plants; and on the general existence of active molecules in organic and inorganic bodies
19. On the movement of small particles suspended in a stationary liquid demanded by the molecular-kinetic theory of heat10.1002/andp.19053220806 ↗
20. Irreversibility and Generalized Noise10.1103/PhysRev.83.34 ↗
21. On the formalism of thermodynamic fluctuation theory10.1103/PhysRev.83.1231 ↗
22. On a theorem of irreversible thermodynamics10.1103/PhysRev.86.702 ↗
23. Zener, C. (1948). Elasticity and Anelasticity in Metals, University of Chicago Press.
24. Nowick, A.S., and Berry, B.S. (1972). Anelastic Relaxation in Crystalline Solids, Academic Press. Chapter 1.
25. Mechanical loss in tantala/silica dielectric mirror coatings10.1088/0264-9381/20/13/334 ↗
26. Mechanical dissipation in silicon flexures10.1016/j.physleta.2005.10.103 ↗
27. Vibrating reed internal friction apparatus for films and foils10.1147/rd.194.0334 ↗
28. Thermoelastic dissipation in inhomogeneous media: Loss measurements and displacement noise in coated test masses for interferometric gravitational wave detectors10.1103/PhysRevD.70.082003 ↗
29. The noise in gravitational-wave detectors and other classical-force measurements is not influenced by test-mass quantization10.1103/PhysRevD.67.082001 ↗
30. Thermal noise in interferometric gravitational wave detectors due to dielectric optical coatings10.1088/0264-9381/19/5/305 ↗
31. Excess mechanical loss associated with dielectric mirror coatings on test masses in interferometric gravitational wave detectors10.1088/0264-9381/19/5/304 ↗
32. Internal thermal noise in the LIGO test masses: A direct approach10.1103/PhysRevD.57.659 ↗
33. Thermoelastic noise and homogeneous thermal noise in finite sized gravitational-wave test masses10.1103/PhysRevD.62.122002 ↗
34. Thermal noise in half-infinite mirrors with nonuniform loss: A slab of excess loss in a half-infinite mirror10.1103/PhysRevD.65.102001 ↗
35. Brownian thermal noise in multilayer coated mirrors10.1103/PhysRevD.87.082001 ↗
36. ET Conceptual Design Study. Available online: https://tds.ego-gw.it/ql/?c=7954.
37. LIGO-T1400316-v4: Instrument Science White Paper. Available online: https://dcc.ligo.org/LIGO-T1400316/public.
38. Titania-doped tantala/silica coatings for gravitational-wave detection10.1088/0264-9381/24/2/008 ↗
39. A study of coating mechanical and optical losses in view of reducing mirror thermal noise in gravitational wave detectors10.1088/0264-9381/27/8/084030 ↗
40. Murray, P. (2008). Measurement of the Mechanical Loss of Test Mass Materials for Advanced Gravitational Wave Detectors. [Ph.D. Thesis, University of Glasgow].
41. Frequency and surface dependence of the mechanical loss in fused silica10.1016/j.physleta.2005.11.046 ↗
42. Spectral Shape of Relaxations in Silica Glass10.1103/PhysRevLett.84.2718 ↗
43. Measurements of a low-temperature mechanical dissipation peak in a single layer of Ta2O5 doped with TiO210.1088/0264-9381/25/5/055005 ↗
44. Nowick, A.S., and Berry, B.S. (1972). Anelastic Relaxation in Crystalline Solids, Academic Press. Chapter 3.
45. Comparison of the temperature dependence of the mechanical dissipation in thin films of Ta2O5 and Ta2O5 doped with TiO210.1088/0264-9381/26/15/155012 ↗
46. Low-temperature internal friction and elasticity effects in vitreous silica10.1063/1.1721649 ↗
47. Probing the atomic structure of amorphous Ta2O5 coatings10.1063/1.3535982 ↗
48. Probing the atomic structure of amorphous Ta2O5 mirror coatings for advanced gravitational wave detectors using transmission electron microscopy10.1088/1742-6596/241/1/012070 ↗
49. Molecular dynamics study of the mechanical loss in amorphous pure and doped silica10.1063/1.4890958 ↗
50. Molecular dynamics modeling of mechanical loss in amorphous tantala and titania-doped tantala10.1103/PhysRevB.93.014105 ↗
51. Optimized multilayer dielectric mirror coatings for gravitational wave interferometers
52. Measurement of thermal noise in multilayer coatings with optimized layer thickness10.1103/PhysRevD.81.122001 ↗
53. Principe, M., DeSalvo, R., Pinto, I., and Galdi, V. Minimum Brownian Noise Dichroic Dielectric Mirror Coatings for AdLIGO. LIGOT080337 2008. Available online: https://dcc.ligo.org.
54. Low Mechanical Loss Coatings for LIGO Optics: Progress Report10.1117/12.618288 ↗
55. Low Loss Coatings for the VIRGO Large Mirrors10.1117/12.516431 ↗
56. Itoh, T. (1989). Ion Beam Assisted Film Growth, Elsevier.
57. Large-aperture plasma-assisted deposition of inertial confinement fusion laser coatings10.1364/AO.50.000C19 ↗
58. Harry, G. Optical Coatings for Gravitational Wave Detection. LIGO-G040434-00-R 2004. Available online: https://dcc.ligo.org.
59. Study of Structure and Properties of Bulk Vacuum Condensates of Nickel, Tungsten, Aluminum Oxide, and Zirconium Dioxide
60. Influence of apparatus geometry and deposition conditions on the structure and topography of thick sputtered coatings10.1116/1.1312732 ↗
61. Wei, D.T., and Louderback, A.W. (1979). Method for Fabricating Multi-Layer Optical Films. (4,142,958), U.S. Patent.
62. Hydrogen-Free Amorphous Silicon with no Tunneling States10.1103/PhysRevLett.113.025503 ↗
63. Low-energy excitations in amorphous films of silicon and germanium10.1103/PhysRevB.58.9067 ↗
64. Gibson, D., Song, S., Li, C., and Child, D. (2016, January 19–24). Optical Properties of Sputter Deposited Amorphous Hydrogenated Silicon Films. Proceedings of Optical Interference Coatings, Tucson, AZ, USA.10.1364/OIC.2016.ThC.2 ↗
65. Stress and Silicon Nitride: A Crack in the Universal Dissipation of Glasses10.1103/PhysRevLett.102.225503 ↗
66. Chao, S., Pan, H.-W., Kuo, L.-C., Huang, S.-Y., Wu, M.-Y., Juang, Y.-H., and Lee, C.-W. (2016, January 19–24). Silicon-nitride Films Deposited by PECVD Method on Silicon Substrate for Next Generation Laser Interference Gravitational Wave Detector. Proceedings of Optical Interference Coatings, Tucson, AZ, USA.10.1364/OIC.2016.MB.12 ↗
67. Low temperature mechanical dissipation of an ion-beam sputtered silica film10.1088/0264-9381/31/3/035019 ↗
68. Ion-beam sputtered amorphous silicon films for cryogenic precision measurement systems, Phys10.1103/PhysRevD.92.062001 ↗
69. Markosyan, A.; Route, R.K.; Rowan, S. Optical Absorption of Ion-Beam Sputtered aSi Coatings10.1103/PhysRevD.93.062005 ↗
70. Thermal noise reduction and absorption optimization via multimaterial coatings10.1103/PhysRevD.91.042001 ↗
71. Multimaterial coatings with reduced thermal noise10.1103/PhysRevD.91.042002 ↗
72. Suppression of Crystallization of Tantalum Oxide Thin Film by Doping with Zirconium10.1149/1.1836122 ↗
73. Thickness-dependent crystallization on thermal anneal for titania/silica nm-layer composites deposited by ion beam sputter method10.1364/OE.22.029847 ↗
74. Cryogenic mechanical loss measurements of heat-treated hafnium dioxide10.1088/0264-9381/28/19/195017 ↗
75. Apparatus for mechanical loss measurements in low loss materials at audio frequencies and low temperatures10.1063/1.1683517 ↗
76. Tenfold reduction of Brownian noise in high-reflectivity optical coatings10.1038/nphoton.2013.174 ↗
77. High-performance near- and mid-infrared crystalline coatings10.1364/OPTICA.3.000647 ↗
78. Epitaxial growth of GaP/AlGaP mirrors on Si for low thermal noise optical coatings10.1364/OME.5.001890 ↗
79. Measurement of the mechanical loss of prototype GaP/AlGaP crystalline coatings for future gravitational wave detectors10.1088/0264-9381/32/3/035002 ↗
80. Thermodynamical fluctuations and photo-thermal shot noise in gravitational wave antennae10.1016/S0375-9601(99)00785-9 ↗
81. All-reflective Michelson, Sagnac, and Fabry–Perot interferometers based on grating beam splitters10.1364/OL.23.000567 ↗
82. All-reflective coupling of two optical cavities with 3-port diffraction gratings10.1364/OE.18.009119 ↗
83. Corner reflectors and quantum-nondemolition measurements in gravitational wave antennae10.1016/j.physleta.2004.02.066 ↗
84. Monolithic dielectric surfaces as new low-loss light-matter interfaces10.1364/OL.33.000264 ↗
85. Realization of a monolithic high reflectivity cavity mirror from a single silicon crystal10.1103/PhysRevLett.104.163903 ↗