Laser ultrasonics

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Laser ultrasonics

SRAS for materials characterisation Spatially Resolved Acoustic Spectroscopy, it is a technique for mapping the surface acoustic wave velocity of a material. SRAS 300dpi sras austenitic ss.png
NDE for AM We are developing technologies for additive manufacturing to enable online inspection to montior material properties and presence of defects while the part is being constructed. AMTi-150Wx5.png
Cell Imaging Using Picosecond Ultrasonics We have been developing an instrument for imaging the acoustic properties of living cells using high frequency ultrasound. We have taken the first images of living cells using the picosecond laser ultrasound technique PLU cardiacBrill.png
Super-resolution imaging using nano-bells We have demonstrated that metallic nanostructures can be super-localised by measuring their acoustic vibrations TEM 125nm gold np.jpg
Exotic Ultrasonics for the real world We have developed a custom CMOS linear array detector for picosecond ultrasound measurements. Performing many measurements in parallel allows us to dramatically reduce the time it takes to perform each measurement. Ultrafast Camera.PNG
Cheap Optical Transducers This is a new breed of ultrasonic transducers that are activated and read optically. CHOTs offer a range of advantages over the traditional contact transducers: remote, reliable, couplant free operation with low impact on the inspected structure, activated by light and eliminating the need of wires. Focused SAW CHOT.jpg
Nanoscale Ultrasonic Transducers We have created new ultrasonic transducers operating at the nanoscale with frequencies in the gigahertz range and with wavelengths smaller than those of visible light. These will enable the diagnostic power of ultrasonics to be used at the nanoscale. BNC hair2highlightred.PNG
High frequency ultrasonics using optical fibres We have developed ultrasonic transducers that sit on the tip of a hair-thin optical fibre, which can be used for endoscopic spectroscopy and imaging in biomedical and industrial settings. Thumbnail.png
Nanoparticle acoustic transducers We are developing spherical acoustic transducers operating at the nanoscale with frequencies in the gigahertz range and with wavelengths smaller than those of visible light. TEM core shell.png