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2009

Ramadas, Sivaram Nishal and O'Leary, Richard and Mulholland, Anthony and Hayward, Gordon and Mackintosh, Allan and Troge, Alexandre and Pethrick, Richard; (2009) Tapered transmission line technique based graded matching layers for thickness mode piezoelectric transducers. In: 2009 IEEE International Ultrasonics Symposium. IEEE, ITA, pp. 1695-1698. ISBN 9781424443895

O'Leary, Richard and Ramadas, Sivaram Nishal and Mulholland, Anthony and Hayward, Gordon and Troge, Alexandre and Pethrick, Richard (2009) Multiphase passive materials for efficient and wideband transduction. In: International Workshop on Transducers and Transducer Materials, 2009-05-12, Penn State University.

2008

Mulholland, A. and Ramadas, S.N. and O'Leary, R.L. and Parr, A.C.S. and Hayward, G. and Troge, Alexandre and Pethrick, R.A. (2008) Enhancing the performance of piezoelectric ultrasound transducers by the use of multiple matching layers. IMA Journal of Applied Mathematics, 73 (6). pp. 936-949. ISSN 1464-3634

2007

Mulholland, A. and Ramadas, S.N. and O'Leary, R.L. and Parr, A.C.S. and Troge, A. and Hayward, G. and Pethrick, R.A. (2007) A theoretical analysis of a piezoelectric ultrasound device with an active matching layer. Ultrasonics, 47 (1). pp. 102-110. ISSN 0041-624X

Ramadas, S.N. and Hayward, G. and O'Leary, R.L. and McCunnie, T. and Mulholland, A. J. and Troge, A. and Pethrick, R.A. and Robertson, D. and Murray, V. (2007) A three-port acoustic lattice model for piezoelectric transducers containing opposing zones of polarization. In: 2007 IEEE International Ultrasonics Symposium, 2007-10-28 - 2007-10-31.

O'Leary, R.L. and Parr, A.C.S. and Hayward, G. and Troge, A. and Pethrick, R.A. (2007) Experimental assessment of periodic piezoelectric composite arrays incorporating an anisotropic passive phase. In: IEEE Ultrasonics Symposium 2006, 2006-10-02 - 2006-10-06.

2006

O'Leary, Richard and Troge, Alexandre and Parr, Agnes and Pethrick, Richard and Hayward, Gordon (2006) Limiting crosstalk in piezoelectric composite arrays via considered design of the passive phase. In: International Congress on Ultrasonics, 2007-04-09 - 2007-04-13.

O'Leary, R.L. and Parr, A.C.S. and Troge, A. and Pethrick, R.A. and Hayward, G.; (2006) Performance of periodic piezoelectric composite arrays incorporating a passive phase exhibiting anisotropic properties. In: IEEE Ultrasonics Symposium, 2005. IEEE, NLD, pp. 1073-1076. ISBN 0780393821

2005

Parr, Agnes and Troge, Alexandre and O'Leary, Richard and Campbell, Ewan Fraser and Pethrick, Richard and Hayward, Gordon (2005) Enhancing the imaging performance of periodic piezoelectric composite arrays. In: bindt2005 British Institute of Non-destructive Evaluation, 2005-09-13.

O'Leary, Richard and Parr, Agnes and TROGE, Alexandre and Pethrick, Richard and Hayward, Gordon (2005) Improving the performance of periodic piezoelectric composite arrays through synthesis of an anisotropic passive phase. In: ONR Workshop on Acoustic Transduction Materials and Devices, 2005-05-10, Penn State University.