A5103811459- Pulsars and Gravitational Waves Research
- Advanced Measurement and Metrology Techniques
- Adaptive optics and wavefront sensing
- Electronic and Structural Properties of Oxides
- Geophysics and Sensor Technology
- Advanced Sensor Technologies Research
- Magnetic and transport properties of perovskites and related materials
- Ferroelectric and Piezoelectric Materials
- High-pressure geophysics and materials
- Advanced Fiber Optic Sensors
- Advanced Frequency and Time Standards
- Advanced MEMS and NEMS Technologies
- Astrophysical Phenomena and Observations
University of Glasgow
2015-2025
Due to its excellent optical properties, such as low absorption and scattering, amorphous <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mtext>Ta</a:mtext><a:mn>2</a:mn></a:msub><a:msub><a:mi mathvariant="normal">O</a:mi><a:mn>5</a:mn></a:msub></a:math> is commonly used an coating material, often in combination with <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"...
Planned cryogenic gravitational-wave detectors will require improved coatings with a strain thermal noise reduced by factor of 25 compared to Advanced LIGO. We present investigations HfO2 doped SiO2 as new coating material for future detectors. Our measurements show an extinction coefficient k=6×10−6 and mechanical loss ϕ=3.8×10−4 at 10 K, which is 2 below that SiO2, the currently used low refractive-index material. These properties make ideally suited low-index partner use a-Si in lower...
Thermal noise resulting from the mechanical loss of multilayer dielectric coatings is expected to impose a limit sensitivities precision measurement systems used in fundamental and applied science. In case gravitational wave astronomy, future interferometric detectors are likely operate at cryogenic temperatures reduce such thermal ameliorate loading effects, with desirable thermomechanical properties silicon making it an attractive mirror substrate choice for this purpose. For use...
One of the significant limiting factors in gravitational wave detectors is Brownian noise associated with optical coatings [1], which are required to form highly-reflective laser mirrors. UWS has a unique range capabilities being used help develop novel coating technology that can address this challenge, targeted for aLIGO+ and beyond.