Difference between revisions of "Laser ultrasonics"
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| [[CHOTs main|Cheap Optical Transducers]] | | [[CHOTs main|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 eliminating the need of wires. | | 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 eliminating the need of wires. | ||
| − | | | + | | [[Image:Focused_SAW_CHOT.jpg | 100px]] |
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Revision as of 12:32, 18 November 2011
Laser ultrasonics
| 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. | 
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| SRAS for materials characterisation | Spatially Resolved Acoustic Spectroscopy, it is a technique for mapping the surface acoustic wave velocity of a material. | 
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| 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 eliminating the need of wires. | 
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| 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. | 
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