Researchers at UCD


John Healy

Lecturer/Assistant Professor

School Of Electrical & Electronic Eng
Engineering Building
Dublin 4

Tel: +353 1 7161854


John J. Healy was born in Co. Dublin, Ireland in 1983. He was awarded the B.E. and Ph.D. degrees in Electronic Engineering from University College Dublin in 2005 and 2010. He has worked as a postdoctoral fellow in Physics in UNAM, Mexico, and in Computer Science and Electronic Engineering in Maynooth University. In 2012, he was awarded the NUI Postdoctoral Fellowship in the Sciences. He has been a Lecturer in Electrical, Electronic and Communications Engineering in UCD since 2015. He is a member of the IEEE, the OSA and the SPIE.




Association: SPIE - the international society for optics and photonics, Function/Role: Member
Association: Optical Society of America, Function/Role: Member
Association: Institute for Electrical and Electronic Engineers, Function/Role: Member


Year 2005 Institution: University College Dublin
Qualification: BE Subject:
Year 2010 Institution: University College Dublin
Qualification: PhD Subject:



Book Chapters

B. M. Hennelly, J. J. Healy, J. T. Sheridan; (2009) 'Sampling and Phase Space' In: Markus Testorf, Bryan Hennelly, Jorge Ojeda-Castaneda (eds). Phase-Space Optics. new York: McGraw Hill. , pp.309-336 [Details]

Edited Books

Healy, J.J., Kutay, M.A., Ozaktas, H.M., Sheridan, J.T (Ed.). (2016) Linear Canonical Transforms Theory and Applications. New York: Springer-Verlag. Available Online [DOI] [Details]

Peer Reviewed Journals

Drakakis, K,Gow, R,Healy, J,Rickard, S; (2008) 'Cross-Correlation Properties of Costas Arrays and Their Images under Horizontal and Vertical Flips'. math, . [DOI] [Details]
Healy, J. J., Sheridan, J. T., ; (2008) 'Cases where the linear canonical transform of a signal has compact support or is band-limited'. Optics Letters, 33 (3):228-230. [Details]
J. J. Healy, J. T. Sheridan; (2009) 'Sampling and discretization of the linear canonical transform'. Signal Processing, 89 :641-648. [DOI] [Details]
J. J. Healy, J. T. Sheridan; (2010) 'Fast Linear Canonical Transform - FLCT'. Journal of the Optical Society of America A-Optics Image Science and Vision, 27 (1):21-30. [Details]
Healy John J.; Sheridan John T.; (2011) 'Space-bandwidth ratio as a means of choosing between Fresnel and other linear canonical transform algorithms'. Journal of the Optical Society of America A-Optics Image Science and Vision, 28 (5):786-790. [Details]
Liu Changgeng; Wang Dayong; Healy John J.; Sheridan John T.; (2011) 'Digital computation of the complex linear canonical transform'. Journal of the Optical Society of America A-Optics Image Science and Vision, 28 (7):1379-1386. [Details]
L. Zhou, J. J. Healy, J. T. Sheridan (2013) 'A unitary discrete linear canonical transform: Analysis and application'. Applied Optics, 52 :C30-C36. [Details]

Conference Publications

Healy, J. J. , Sheridan, J. T.; (2006) New fast algorithm for the numerical computation of quadratic-phase integrals SPIE International Symposium Optical Science and Technology aAgorithms San Diego, California, USA, , 13-AUG-06 - 17-AUG-06 [Details]
Healy, J. J., Sheridan, J. T.; (2006) Applications of fast algorithms for the numerical calculation of optical signal transforms Photon Management II., SPIE's International Symposium on Photonics Europe Strasbourg, France, , 03-APR-06 - 07-APR-06 [Details]
Healy, J. J., Sheridan, J. T.; (2006) Fast numerical algorithms for optical systems Irish Signals and Systems Conference 2006, ISSC Dublin Institute of Technology, Dublln, , 28-JUN-06 - 30-JUN-06 [Details]
Healy, John J.; O'Grady, Paul; Sheridan, John T.; (2008) Simulating paraxial optical systems using the linear canonical transform: properties, issues and applications - art. no. 70720E . In: Awwal, AAS, Iftekharuddin, KM, Javidi, B eds. Conference on Optics and Photonics for Information Processing II San Diego, CA, , 13-AUG-08 - 14-AUG-08 [Details]
Healy, John J.; Sheridan, John T.; (2008) Bandwidth, compact support, apertures and the linear canonical transform in ABCD systems - art. no. 69940W . In: Sheridan, JT, Wyrowski, F eds. PHOTON MANAGEMENT III PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) [Details]
JJ Healy (2015) Number theoretical design of optimal holographic targets for measurement of 3D target motion International Conference on Optical Instruments and Technology 2015 [Details]


Research Interests

Dr Healy's research is primarily in the area of numerical and mathematical modelling of optical systems.