Dr. John T. Sheridan

Contact Details:


Department of Electronic and Electrical Engineering,
Faculty of Engineering and Architecture,
University College Dublin,
Dublin 4,
Republic of Ireland.

Phone: (office) +353 (0)1 716 1927
 (home) +353 (0)1 298 2365
Fax: +353 (0)1 283 0921
Email:  john.sheridan@ucd.ie

John T. Sheridan was born in Castlebar, Co. Mayo where he attended St Patricks National School and St Geralds College.  He received his Bachelors degree (H1) in Electronic Engineering, from University College Galway, (NUI), in 1985 and his Masters degree in the Science of Electrical Engineering, from Georgia Institute of Technology (Georgia Tech), in 1986.  While at GT he worked as a Research Assistant of Prof. William T. Rhodes.  In 1987 he matriculated as a member of Jesus College Oxford and in 1991 he was awarded his doctorate by Oxford University for work carried out under the supervision of Prof. Laszlo Solymar and Prof. Colin J.R. Sheppard.  This was followed by postdoctoral fellowships, supported first (1991) by the Alexander von Humboldt Foundation and later (1992) by a European Community Bursary (Human Capital and Mobility).  Both were held in the Physikalisches Institut, of the Friedrich-Alexander-Universitaet Erlangen-Nürnberg at the Lehrstuhl fur Angewandte Optik under the leadership of Prof. Dr A.W. Lohmann.  In 1994 he took up a position as a visiting scientist at the European Commission Joint Research Centre, Italy.  In 1997 he was appointed a Permanent Lecturer within the School of Physics, Dublin Institute of Technology.  He joined the Department of Electronic and Electrical Engineering, University College Dublin, in 2000 as a College Lecturer. 

In 2005 he became a Senior Lecturer within the Dept of E. & .E. Engineering and is currently Deputy Director of the Optoelectronic Research Centre UCD..

Research Interests
Fundamentals of optics and the electromagnetic theory of diffraction.  Optical Signal Processing, including applications of the Wigner Distribution Function and the Fractional Fourier and Linear Cannonical Transforms.  Surface relief diffraction gratings and refractive melted microlens arrays.  Holographic materials, holographic optical elements and holographic data storage.  Optical fiber Bragg grating sensors.  Optical metrology including confocal microscopy, holographic interferometry and speckle photography. See -
(click here). 

Membership of Professional Bodies
Optical Society of America, SPIE The International Society for Optical Engineering, SFO.
Recently became a member of the Editorial Board of Optik (The International Journal for Light and Electron Optics) http://www.elsevier-deutschland.de/artikel/647556

Postgraduate Research
There are currently two postdoctoaral research fellows within my group: Dr Feidhlim T. O’Neill and Dr Unnikrishnan Gopinathan.  I am currently supervising ten postgraduate students studying for doctoral and research masters degrees, working in the areas of optical signal processing, holographic materials and optical devices/components.  Specific current topics of research include speckle based metrology, holographic data storage and refractive microlens modelling, fabrication and characterisation.  Brief summaries of research carried out within the group, and the abstracts of some recent conference papers can be seen -
(click here). 

If you read these and want to know more then:

    (a) checkout my publications list (Publications) and

    (b) please drop me a line (john.sheridan@ucd.ie) as I am always seeking to contact enthusiastic people interested in our research.

Undergraduate Program Responsibilities
Electronic Circuits 2 (Third Year lectures, tutorials and laboratories)
Electromagnetics 2 (Third Year lectures and tutorials)
Optical Engineering (Fourth Year)
Currently five final 4th year undergraduate projects being supervised

Engineering Summer School – Highschool Outreach Program
As is part of the Department of Electronic and Electrical Engineering Community Outreach Program, and in particular as director of our engineering summer school I am deeply involved in our efforts to popularise science and technology, inform the community about our work and attract interested students to pursue careers in the engineering profession.  For more information please see: http://eleceng.ucd.ie/summerschool/

Publication List
I have authored ~85 reviewed journal papers and one book chapter, I hold 3 patents and have authored ~100 conference proceedings papers and published reports.  A detailed chronological listing is available at Publications

Past Reviewer for:
Applied Optics, The Journal of Microscopy, The Journal of Modern Optics, The Journal of the Optical Society of America A, The Journal of the Optical Society of America B, Journal of Physics D: Applied Physics, Optics Communications, Optics Express, Optics Letters, Optik (The International Journal for Light and Electron Optics), IEEE Photonics Technology Letters, The Journal of Measurement Science and Technology, The Journal of Optics A: Pure and Applied Optics, Optical Engineering, IEE Electronic Letters.

 Soros Foundation, Science Foundation Ireland, Natural Sciences and Engineering Research Council of Canada.

Research Funding and Collaborations
My research group receives financial support from a number of sources including: Enterprise Ireland (Proof of Concept Fund, International Collaboration Fund), Science Foundation Ireland (Basic Research/Research Frontiers Program), the Irish Research Council for Science, Engineering and Technology (IRCSET) (Postdoctoral Fellowship Program), the European Union (COST 266 Program, Socrates) and through several University College Dublin and Irish Higher Education Authority based support schemes.

My group has active and ongoing research efforts involving companies, and individual academics in Ireland and abroad and I am always seeking to extend our collaborative efforts.