Dr Richard Smith's Outputs (47)

Rapid wide-field heterodyne interferometry with custom 2D CMOS camera (2015)
Journal Article
Zhang, J., See, C. W., Smith, R. J., Johnston, N. S., Pitter, M. C., Somekh, M. G., & Light, R. A. (2015). Rapid wide-field heterodyne interferometry with custom 2D CMOS camera. Electronics Letters, 51(6), 479-480. https://doi.org/10.1049/el.2015.0268

© The Institution of Engineering and Technology 2015. A wide-field pseudo-heterodyne interference contrast microscope is described, which employs a complementary metal-oxide semiconductor (CMOS) phase-sensitive camera. The use of multiple wells in th... Read More about Rapid wide-field heterodyne interferometry with custom 2D CMOS camera.

Optically excited nanoscale ultrasonic transducers (2015)
Journal Article
Smith, R. J., Cota, F. P., Marques, L., Chen, X., Arca, A., Webb, K., Aylott, J. W., Somekh, M. G., & Clark, M. (2015). Optically excited nanoscale ultrasonic transducers. Journal of the Acoustical Society of America, 137(1), 219-227. https://doi.org/10.1121/1.4904487

© 2015 Acoustical Society of America. In order to work at higher ultrasonic frequencies, for instance, to increase the resolution, it is necessary to fabricate smaller and higher frequency transducers. This paper presents an ultrasonic transducer cap... Read More about Optically excited nanoscale ultrasonic transducers.

Highly sensitive multipoint real-time kinetic detection of Surface Plasmon bioanalytes with custom CMOS cameras (2014)
Journal Article
Wang, J., Smith, R. J., Light, R. A., Richens, J. L., Zhang, J., O'Shea, P., See, C., & Somekh, M. G. (2014). Highly sensitive multipoint real-time kinetic detection of Surface Plasmon bioanalytes with custom CMOS cameras. Biosensors and Bioelectronics, 58, 157-164. https://doi.org/10.1016/j.bios.2014.02.042

Phase sensitive Surface Plasmon Resonance (SPR) techniques are a popular means of characterizing biomolecular interactions. However, limitations due to the narrow dynamic range and difficulty in adapting the method for multi-point sensing have restri... Read More about Highly sensitive multipoint real-time kinetic detection of Surface Plasmon bioanalytes with custom CMOS cameras.

Spatially resolved acoustic spectroscopy for rapid imaging of material microstructure and grain orientation (2014)
Journal Article
Smith, R. J., Li, W., Coulson, J., Clark, M., Somekh, M. G., & Sharples, S. D. (2014). Spatially resolved acoustic spectroscopy for rapid imaging of material microstructure and grain orientation. Measurement Science and Technology, 25(5), Article 055902. https://doi.org/10.1088/0957-0233/25/5/055902

Measuring the grain structure of aerospace materials is very important to understand their mechanical properties and in-service performance. Spatially resolved acoustic spectroscopy is an acoustic technique utilizing surface acoustic waves to map the... Read More about Spatially resolved acoustic spectroscopy for rapid imaging of material microstructure and grain orientation.

Sound of nano (2013)
Presentation / Conference Contribution
Aylott, J., Clark, M., Marques, L., Perez-Cota, F., Smith, R. J., & Webb, K. F. Sound of nano. Presented at SPIE Micro+Nano Materials, Devices, and Applications, Melbourne, Victoria, Australia

Ultrasound is widely used for imaging, measurement and diagnostics in the MHz region and is perhaps most familiar as a medical or non-destructive imaging or measurement tool. In the MHz frequency range the wavelength is typically measured in microns... Read More about Sound of nano.

Determination of crystallographic orientation of large grain metals with surface acoustic waves (2012)
Journal Article
Li, W., Sharples, S. D., Smith, R. J., Clark, M., & Somekh, M. G. (2012). Determination of crystallographic orientation of large grain metals with surface acoustic waves. Journal of the Acoustical Society of America, 132(2), 738-745. https://doi.org/10.1121/1.4731226

A previously described laser ultrasonic technique known as spatially resolved acoustic spectroscopy (SRAS) can be used to image surface microstructure, using the local surface acoustic wave (SAW) velocity as a contrast mechanism. It is shown here tha... Read More about Determination of crystallographic orientation of large grain metals with surface acoustic waves.

CHOTs optical transducers (2011)
Journal Article
Arca, A., Aylott, J., Marques, L., Clark, M., Somekh, M., Smith, R., Sharples, S., Stratoudaki, T., & Chen, X. (2011). CHOTs optical transducers. Nondestructive Testing and Evaluation, 26(3-4), 353-366. https://doi.org/10.1080/10589759.2011.573555

Laser ultrasonics conventionally use direct absorption in the sample to generate ultrasound and monitor the sample to detect the ultrasound. However, in some circumstances there are significant advantages to using an optical transducer - a device to... Read More about CHOTs optical transducers.