SPIE Student Chapter University College Dublin

Annual Report

Report Submitted: 1st June 2010

Period Reported on: January 2009 – May 2010

Elected Officers:

Title: Name: E-mail: Membership #:

President Dusan Sabol dusan.sabol@ucd.ie 3124896 Vice President John Healy john.healy@ucd.ie 3049735 Secretary James Ryle james.ryle@ucd.ie 3051919 Treasurer Laura Tobin laura.tobin@ucd.ie 3246337 Women’s Officer Jennifer Ward jward@ee.ucd.ie 3011680 Education Officer Shui Liu shui.liu@ucd.ie 3175271 Advisor Prof. John T. Sheridan john.sheridan@ucd.ie

Current Student Chapter Members: Ms. Ciara Close Ms. Laura Tobin Mr. James Ryle Mr. Shui Liu Mr. Jinxin Guo Mr. John Healy Mr. Dusan Sabol Mr. Nitesh Pandey Mr. Thomas O’Reilly Mr. Conor McElhinney Mr. Shiju Joseph Mr. Nektarios Valous Mr. Vinod Vukkalam

Chapter Activities 2009/2010: January Visit from Prof. Gisele Bennett In January 2009, Prof. Gisele Bennett, Georgia Tech. Research Institute, visited the chapter to outline

the GTRI activities in Georgia and in Athlone. Chapter members discussed their work with her before

embarking on a lab tour.

Figure 1: Members of the SPIE Student chapter, Prof. Bennett and Prof. Sheridan

March Visit to National University of Ireland Galway (NUIG) During March 2009, the UCD SPIE and OSA student chapters congressed in the beautiful National

University of Ireland, Galway campus on the wind worn west coast of Ireland. Mr. James Ryle

presented the UCD Student Chapter activities to the other chapters as well as to Prof. Chris Dainty

(NUIG) and Prof. Tom Baer (Stanford).

Figure 2: Montage of UCD and NUIG Student Chapter Members with Tom Baer

20th – 23rd April SPIE Europe Optics & Optoelectronics SPIE Europe Optics + Optoelectronics 2009 was held in Prague. Two members Dušan Sabol and Shui

Liu together with former member Dr. Michael Gleeson and the chapter advisor Prof. John Sheridan

attended. Shui Liu presented modelling of life cycle of two organic dyes used in photopolymers.

Dušan Sabol gave two talks: (i) about photointiation study of the organometallic photoinitiator in

photopolymer and (ii) modelling of scatter by thick non-uniform phase grating. He also presented

experimental results of low spatial frequency into photopolymer with and without cover plating

performed in conjunction with University of Žilina in Slovakia.

Figure 3: Mr. Shui Liu, Dr. Michael Gleeson, Mr. Dusan Sabol and Prof. John T. Sheridan

Figure 4: Mr Dusan Sabol and Mr. Shui Liu.

Figure 5: Dr. Michael Gleeson, Mr. Shui Liu, Mr. Dusan Sabol.

10th – 11th June 2009 Irish Systems and Signals Conference The 20th annual Irish Systems and Signals Conference was hosted by UCD this year. John Healy represented the student chapter at this event, which allows Irish researchers in a range of areas of signal processing and related fields to discuss their work and build national inter-university collaborative ties. Industry speakers and a panel discussion on commercialisation of university research rounded out a fascinating programme.

A particular treat were the keynote speakers. Simon Singh, a physicist and popular science writer, spoke about classic encryption schemes, and even had an original German naval Enigma encryption machine on display. He also spoke about the chilling effect of libel law on science, a topic he is very aware of, having just successfully defended a protracted and expensive lawsuit with the British chiropractic association over an article criticising some of their members' claims. Another keynote speaker was Blaise Aguera y Arcas whose company, Photosynth, has been acquired by Microsoft. He spoke about their technology, which constructs a 3D model from collections of photos of a scene, and showed a number of spectacular examples, ranging from people, to landmarks, to aerial photography of a town. 2nd – 6th August SPIE Optics and Photonics Ms. Laura Tobin, Ms. Karen Maloney, Mr. James Ryle and Mr. Nitesh Pandey attended and presented at the SPIE Optics and Photonics 2009 conference in San Diego. Mr. James Ryle attended the SPIE Leadership Workshop where he met a number of interesting fellow student chapter leaders as well as the gaining valuable pointer of leadership.

Figure 6: SPIE Leadership Workshop, San Diego 2009.

14th – 16th September Photonics Ireland Photonics Ireland is the premier conference for photonics research in Ireland. Photonics Ireland 2009 was held at Actons Hotel, in Kinsale, County Cork. This all-Ireland conference, which attracted more than 275 participants, was reported in a front-page article in the Irish Times (Tuesday 15 September 2009).

With almost 200 papers presented, the sessions covered most aspects of photonics research in Irish Universities and Institutes of Technology, including: Photonic Materials, Photonic Devices, Nanophotonics and Plasmonics, Biophotonics, Imaging, Laser Material Interactions, Quantum Optics, and Optical Communication Systems. The conference also included a Photonics Industry event.

The conference participants were representative of all of the photonics research groups in the Irish Republic and Northern Ireland, and many research students and post-docs in photonics — as well as senior researchers — participated. In addition, there were several high-level representatives of industry and funding agencies.

Figure 7: Group Photo of Photonics Ireland

Mr. John Healy, Mr. James Ryle, Mr. Conor McElhinney, Nr. Nitesh Pandey, Ms. Laura Tobin, Ms. Karen Maloney and Prof. John T. Sheridan attended and presented at Photonics Ireland. Also in attendance who presented at Photonics Ireland was SPIE CEO Eugene Arthurs. Prof. Gisele Bennett (Georgia Tech) and Prof. Chris Dainty (NUIG) were also in attendance. Mr. Nitesh Pandey won first prize for Best Student Poster.

Figure 8: SPIE CEO Eugene Arthurs, Prof. Gisele Bennett (Georgia Tech), Prof. Chris Dainty (NUIG)

12th – 16th April SPIE Photonics Europe Ms. Ciara Close and Prof. John T. Sheridan attended the SPIE Photonic Europe Conference in Brussels and ended up staying longer than anticipated due to the Eyjafjallajökull volcano in Iceland. The Thomas Preston Optics Lecture Series: The UCD Student Chapter runs visiting lecturer talks named after Thomas Preston. Thomas Preston (1860 - 1900) was an Irish scientist whose research was concerned with heat, magnetism, and spectroscopy. He established empirical rules for the analysis of spectral lines, which remain associated with his name. In 1897 he discovered the Anomalous Zeeman Effect, a phenomenon noted when the spectral lines of elements were studied in the presence or absence of a magnetic field.

He was educated at The Royal School, Armagh, the Royal University of Ireland and Trinity College, Dublin. From 1891 to 1900 he was Professor of Natural Philosophy at University College Dublin. He was a Fellow of the Royal University of Ireland and of the Royal Society, London and was a distinguished spectroscopist. His two major textbooks remained in continuous use for over 50 years.

He enrolled in Trinity College, Dublin in 1881, and worked under the physicist George FitzGerald, known for his work in electromagnetics. While at University College Dublin, he wrote a

book, The Theory of Light. In 1899 he won the second Boyle Medal presented by the Royal Dublin Society. Mr. James Ryle convened this distinguished lecture series with notable speakers for the 2009 year including:

Dr. Normal Toms, founder Sierra Wireless, “Lessons from a successful start-up” 26th March Prof. Davis Coakely, MIRA, St. James Hospital and TCD “Ocular MicroTremor (OMT) in clinical

practice?” 14th May Prof. Levent Onural, Bilkent University, Turkey “3D imaging and displays” 20th August David O’Farrell, Senior Engineer, Ericson “The future of wireless systems” September

Figure 9: Members of the SPIE Student chapter, Dr. Bryan Hennelly, Dr. Damin Kelly, Dr. Monaghan,

Prof Onural and Prof. Sheridan

Publications:

J. P. Ryle, M. Al-Kalbani, N. Collins, U. Gopinathan, G. Boyle, D. Coakley, and J. T. Sheridan,” Compact portable ocular microtremor sensor: design, development and calibration,” J. Biomed. Opt. 14, 014021 (2009)

J. P. Ryle, K. M. Molony, S. McDonnell, T. J. Naughton, and J. T. Sheridan,” Multispectral lensless digital holographic microscope: imaging MCF-7 and MDA-MB-231 cancer cell cultures”, Proc. SPIE 7442, San Diego (2009).

J. P. Ryle, M. Al-Kalbani, U.Gopinathan, G. Boyle, D. Coakley and J. T. Sheridan, “Speckle interferometric sensor to measure low-amplitude high frequency Ocular Microtremor (OMT)”, Proc. SPIE 7429, San Diego (2009).

J. P. Ryle, D. S. Monaghan, S. McDonnell and J. T. Sheridan,” Real world objects: capturing using in-line digital holography, projecting using spatial light modulators”, Proc. SPIE 7442, San Diego (2009).

K.M. Molony, J. P. Ryle, S. McDonnell, J.T. Sheridan and T. J. Naughton, “Segmentation of biological cells from digital holographic microscopic images”, Proc. SPIE 7443, San Diego (2009).

J. Healy, J.T. Sheridan and J. P. Ryle, “Linear canonical transform sampling: analysis”, Proc. SPIE 7427, San Diego (2009).

J. P. Ryle, U. Gopinathan, M. Al-Kalbani, G. Boyle, D. Coakley and J. T. Sheridan, “Realising a portable sensor capable of measuring the smallest fixational eye movement, Ocular MicroTremor (OMT)“, Photonics Ireland 2009 *6.2+, 14th-16th September 2009

J. P. Ryle, T. Brosnan, S. McDonnell and J. T. Sheridan, “Lensless digital holographic microscope to classify small biological samples”, Photonics Ireland 2009 *A26+, 14th-16th September 2009

C. Liu, D. Wang, J. J. Healy, B. M. Hennelly, J. T. Sheridan, and Y. Wang, "Digital computation of the complex linear canonical transform," submitted for review.

J. J. Healy, W. T. Rhodes and J. T. Sheridan, "Cross terms of the Wigner distribution function and aliasing in numerical simulations of paraxial optical systems," Optics Letters, 35(8), 1142-1144 (2010).

J. J. Healy and J. T. Sheridan, "Reevaluation of the direct method of calculating the Fresnel and other linear canonical transforms," Optics Letters, 35(7), 947-949 (2010).

J. J. Healy and J. T. Sheridan, "Fast linear canonical transforms," J. Opt. Soc. Am. A 27, 21-30 (2010).

K. Drakakis, R. Gow, J. Healy and S. Rickard, "Cross-correlation properties of Costas arrays and their images under horizontal and vertical flips," Mathematical Problems in Engineering, 2009.

J. J. Healy and J. T. Sheridan, "Sampling and discretization of the linear canonical transform," Signal Processing 89 (2009) 641-648.

J. J. Healy, B. M. Hennelly and J. T. Sheridan, "An Additional Sampling Criterion for the Linear Canonical Transform," Opt. Lett. 33(22), 2599-2601 (2008).

K. Drakakis, J. Healy and S. Rickard, "A stochastic analysis approach in the search for Costas arrays," International Journal of Applied Mathematics and Engineering Sciences, 2(1), (Jan.-June 2008) 73-88.

J. J. Healy and J. T. Sheridan, "Cases where the linear canonical transform of a signal has compact support or is band-limited," Opt. Lett. 33(3), 228-230 (2008).

S. Liu, M. R. Gleeson, D. Sabol, J. T. Sheridan, “Improved model of the photoinitiation mechanisms in photopolymer materials,” Proc. SPIE, 7358, 0Q1-0Q 12, oral presentation, Prague, Czech (2009).

S. Liu, M. R. Gleeson, J. Guo, J. T. Sheridan, “Experimental study of primary radical generation in Polyvinylalcohol/Acrylamide (PVA/AA) based photopolymer Material,” Proc. SPIE, xxxx, xx1-xx12, poster presentation, Brussels, Belgium (2010).

D. Sabol, M. R. Gleeson, J. T. Sheridan, "Extracting parameters from slanted non-uniform gratings recorded in photopolymer," Proc of SPIE Vol. 7717, 77171I, (2010).

D. Sabol, M. R. Gleeson, S. Liu, J. T. Sheridan, "Photoinitiaton Study of Irgacure 784 in an Epoxy Resin Photopolymer," J. Appl. Phys. 107, 053113, 8 pages, (2010).

Laura L. Tobin, Thomas O’Reilly, Dominic Zerulla and John T. Sheridan “Characterising Dye-Sensitized Solar Cells”, Proc. SPIE, Vol. 7416, 74161L (2009).

Laura L. Tobin, Thomas O’Reilly, Dominic Zerulla and John T. Sheridan “Investigating Dye-Sensitized Solar Cells”, Proc. SPIE, 7725, 77251A (2010).

Membership: Due to recent and upcoming graduations current memberships have and will fall. In an attempt to rectify this problem the UCD Student Chapter has begun a membership drive. Contact with Mr. Benjamyn Lockwood, the SPIE Student Activity Coordinator has been established to help increase membership numbers. New Membership: Dayan Li joined the Optical and Photonics research group here in UCD in September 2009. He is

supported by a UCD-CSC joint Scholarship. Aim of this partnership is to strengthen research

cooperation and cultural exchange between Irish and Chinese students. This scholarship scheme

allows Dayan to have four years of postgraduate studies and pursue PhD in UCD optoelectronic

research group. Dayan conducts research in speckle interferometry and digital holography. Recent

works include performing experiments to verify correlation properties of the speckle intensity and in

digital holography is already a co-author of the paper submitted to Optical Letter: James P. Ryle,

Dayan Li and John T. Sheridan “Dual wavelength digital holographic Laplacian reconstruction”

Visiting Students: Ms Birce Güleç BOYACI July 4th – August 7th 2009. From the Department of Electrical and Electronics Engineering, Middle East Technical University. Their primary areas of research interest are in the areas of Optical Signal Processing (OSP), ‘Lucky Imaging and Aperture Synthesis with Low-Redundancy Apertures’ and Holography and photosensitive materials. Ms Birce Güleç went on with our support to joined masters program in ETH Zurich, Switerland September 2009, PhD researcher Ms. Elena Tolstik from Institute of Applied Optics, Friedrich-Schiller-University Jena, Germany visited our group, including discussions about theoretical and experimental work. October 2009, Mr. Shui Liu paid a visit to Professor Lambert Hesselink’s optics group in Stanford University, California, United States, including visiting labs, communication with one postdoctoral and other Phd students. January 2010, Mr. Shui Liu paid a visit to Professor Jianhua Liu’s optics group in Fudan University, Shanghai, China, including visiting labs, communication with one postdoctoral and other Phd students, also one oral presentation about the work from our group was given by me. We are honoured to host fellow researchers Ms. Elena Fernandez and Mr. Manuel Perez-Molina and to do electromagnetic and material modelling. Consequently we wish to verify developed theories and execute suitable experiments.

Acknowledgements: The UCD Student Chapter wishes to congratulate our recent graduates. Dr. David Monaghan Dr. John Healy Ms. Karen Maloney

We are honoured to host fellow researchers Elena Fernandez and Manuel Perez-Molina and to do

electromagnetic and material modelling. Consequently we wish to verify developed theories and

execute suitable experiments. We use two different photopolymer materials and perform one and

two beams experiments.

Scholarships: Mr. James Ryle was in receipt of the Officer Travel Grant 2009 and attended the SPIE Leadership Workshop at the SPIE Optics & Photonics Conference in San Diego 1st – 6th August 2009. Ms. Laura Tobin has been awarded the Officer Travel Grant 2010 and will attend the SPIE Leadership workshop at the SPIE Optics & Phonics Conference in San Diego 31st July – August 5th. Both Mr. James Ryle and Ms. Laura Tobin have been awarded a SPIE Scholarship in Optical Science and Engineering which is greatly appreciated.

Future Endeavours: The main priority of the UCD Student Chapter 2010 is to increase its membership and become more proactive. We have reached out to other departments and groups within UCD and are currently planning an Information (pizza!) Lunch Day with a view to forming the SPIE UCD Student Chapter Committee 2010. Several members of the UCD Student Chapter will be attending the Summer School of the Opto-Informatics, 22nd – 24th June in Maynooth, Ireland. We are also currently applying for a Visiting Lecture grant for Prof. Colin J. R. Sheppard.

We hope to increase our SPIE activity dramatically within the next year.

Financial Report:

CR € DR € Opening Balance 838.87 Withdrawal SPIE Activity 150 SPIE Activity Grant 337.18 ---------------------------------------------------------------------------------------------------------------------------------- Closing Balance (May 2010) 1026.05