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Dr Prabath Hewageegana, BSc, (Kelaniya), MSc (GSU), PhD (GSU),CPhys, MIP (SL)

	Designation	:	Senior Lecturer - Grade II
	Spcialized Field	:	Theoretical Condensed Matter Physics
	Mailing Address	:	Department of Physics, University of Kelaniya, Kelaniya 11600, Sri Lanka
	Telephone	:	(+94) (0)11 2903363 (Office) (+94) (0)71 8449454 (Mobile)
	Email	:	prabathh@gmail.com

Research Interests

• Graphene Quantum Dots: Electronics and optical properties of graphene QDs
• Theoretical nanoplasmonics: theory of electronic and optical properties of nanosystems
• Optoelectronic applications: coupling of nanoplasmonic enhancement with IR detectors

Publications

1. P Hewageegana, Strong photoelectron emission from silver nanostructures, J. of Science of the University of Sri Lanka, 5, 47-54 (2010).
2. P Hewageegana, Nanoscience and Nanotechnology: The next revolution, J. Institution of Incorporated Engineers, Sri Lanka 10 (1), pp 22-26 (July 2010)
3. V Apalkov and P Hewageegana, Electron localization in graphene quantum dots, APS March Meeting, Pittsburgh USA (2009)
4. P Hewageegana and V Apalkov, Trapping of an electron in coupled quantum dots in graphene, Phys. Rev. B79, 115418 (2009) and Virtual J. Nanoscale Science and Technology, 19 (13) (2009)
5. P Hewageegana, Theory of electronic and optical properties of nanostructures, PhD Dissertation, Georgia State University, United States of America (2008)
6. P Hewageegana and V Apalkov, Enhanced mid-infrared transmission through metallic diffraction grating, J. Phys. Condens. Matter 20, pp. 395228 (2008)
7. P Hewageegana and V Apalkov, Theoretical study of terahertz quantum well photodetectors: Effect of metallic diffraction coating, Infrared Physics & Technology, 51, pp. 550-554 (2008)
8. P Hewageegana and V Apalkov, Electron localization in graphene quantum dots, Phys. Rev. B77, pp. 245426-1-8 (2008) and Virtual J. Nanoscale Science and Technology, 17 (26) (2008)
9. P Hewageegana and V Apalkov, Second harmonic generation in disordered media: Random resonators, Phys. Rev. B77, pp. 075132-1-8 (2008)
10. P Hewageegana and V Apalkov, Quantum Dot Photodetectors with Metallic Diffraction Grating: Surface Plasmons and Strong Absorption Enhancement, Physica E40, pp. 2817-2822 (2008)
11. P Hewageegana and V Apalkov, Enhancement of optical sensitivity of QDs near metal-dielectric interface, APS March Meeting, New Orleans USA (2008)
12. MI Stockman and P Hewageegana, Absolute Phase Effect in Ultrafast Optical Responses of Metal Nanostructures, Appl. Phys. A89, pp. 247-250 (2007)
13. Prabath Hewageegana and Mark I Stockman, Plasmonic enhancing nanoantennas for photodetection, Infrared Physics & Technology, 50 (2-3), pp. 177-181 (2007)
14. Mark I Stockman and Prabath Hewageegana, Nanolocalized Nonlinear Electron Photoemission under Coherent Control, Quantum Electronics and Laser Science Conference, Long Beach, California USA (2006)
15. Prabath Hewageegana, Plasmonic Enhancing nanoantennas for Photodetection, International Wkshp on Quantum Well Infrared Photodetectors (QWIP-2006), Kandy, Sri Lanka (2006)
16. Prabath Hewageegana, Nanolocalized Nonlinear Ultrafast Optical Responses of Metal Nanostructures, GSU Colloquium, Atlanta, USA (2006)
17. MI Stockman and Prabath Hewageegana, Nanolocalized Nonlinear Electron Photoemission under Coherent Control, Nano Lett. 5 (11), pp. 2325-2329 (2005)
18. PS Hewageegana, W Siripala, Photoelectrolysis of water with Cu₂O/TiO₂ electrodes, Proc. Annual Research Symp. 2002, University of Kelaniya (2002)
19. PS Hewageegana, CD Amarasekara, JRP Jayakody, MA Punyasena, Investigation of temperature and density profiles of brine in evaporating salt pans at Palavi in North-Western Sri Lanka, Proc. 17^th Tech. Sess. Inst. Phys., Sri Lanka (2001)
20. PS Hewageegana, CD Amarasekara, JRP Jayakody, MA Punyasena, A study of temperature and salinity variations with depth in salt pans at Palavi in North-West region of Sri Lanka, Proc. Annual Research Symp. 2000, University of Kelaniya (2000)

Book Chapter

• P Hewageegana and V Apalkov, Graphene Quantum Dots (Invited chapter), Handbook of Nanophysics, Taylor & Francis, NY, USA, ISBN 978-1-4200754-4-1