Raghavendra Jallapuram MSc Tech, Ph. D
Postdoctoral Researcher

Tel: +353-1-4027926

Fax: +353-1-4027901

Email: j.raghavendra@dit.ie

Brief Biography
Educated at the National Institute of Technology Warangal (then Regional Engineering College) and graduated in 2000 with M.Sc. Tech. Engineering physics with specialization in Photonics. Worked as an Optical Engineer for Speck Systems Limited (2000-2002). Joined the “Centre for Industrial and Engineering Optics”, Dublin Institute of Technology as a PhD researcher in April 2002 and graduated with a PhD degree in October 2005 with the thesis entitled “Optimization of an acrylamide-based photopolymer for reflection holographic recording”.
Presently working as an Arnold F Graves postdoctoral research fellow in IEO Centre since December 2005.

Research Interests
Research interests are in holography, self processing photopolymers for holographic recording, and fabrication of holographic optical elements (HOEs) for holographic applications. Other research interests are: Electronic Speckle Pattern Interferometry, display holography.

Peer reviewed journal publications

1. R. Jallapuram, I .Naydenova, H. J. Byrne, S. Martin, R. G. Howard, V. Toal, “Raman spectroscopy for the characterization of polymerization rate in an acrylamide-based photopolymer”, Applied Optics, Vol. 47, No.2, pp.206-212, 2008.

2. I.Naydenova, R.Jallapuram, V.Toal, S.Martin, “visual indication of environmental humidity using a colour changing hologram recorded in a self-developing photopolymer”, Applied Physics Letters, Vol. 92, No. 3, 2008.

3. M. J. Connelly, P. Szecowka, R. Jallapuram, S. Martin, V. Toal, M. P. Whelan, “Multipoint laser Doppler vibrometry using holographic optical elements and a CMOS digital camera”, Optics Letters, Vol. 33, No. 4, pp. 330-332, 2008.

4. K. Pavani, I. Naydenova, S. Martin, R. Jallapuram, R. G. Howard, V. Toal, “Electro-optical switching of liquid crystal diffraction gratings by using surface relief effect in the photopolymer.” Optics Communication, Vol. 273, pp. 367-369, 2007.

5. R. Jallapuram, I. Naydenova, S. Martin, R.G. Howard, V. Toal, S. Frohmann, S. Orlic, H.J. Eichler, “Acrylamide-based photopolymer for microholographic data storage”, Optical materials, Vol. 28, pp. 1329-1333, 2006.

6. I.Naydenova, R.Jallapuram, R.Howard, S.Martin, V.Toal, “Investigation of the diffusion processes in a self-processing acrylamide-based photopolymer system”, Applied Optics, Vol.43, No.14, pp.2900-2905, 2004.

Conference proceedings and poster presentations

1. I.Naydenova, R.Jallapuram, V.Toal, and S.Martin, “Hologram-based humidity indicator for domestic and packaging applications”, SPIE Proc. Vol. 6528, (published online Apr. 11, 2007).

2. S.Martin, I.Naydenova, R.Jallapuram, R.Howard, V.Toal, “Two way diffusion model for the recording mechanism in a self developing dry acrylamide photopolymer”, SPIE Proc. Vol.6252, pp.37-44, 2006.

3. R.Jallapuram, I.Naydenova, H.J.Byrne, S.Martin, R.Howard, V.Toal, “Investigation of polymerization rate in acrylamide-based photopolymer using Raman spectroscopy”, SPIE Proc. Vol.5826, pp.75-81, 2005.

4. S.R.Guntaka, R.Jallapuram, V.Toal, I.Naydenova, S.Martin, S.Mintova, “A compact electronic speckle pattern interferometry system using a photopolymer reflection holographic optical element”, SPIE Proc. Vol.5856, pp.152-157, 2005.

5. R.Jallapuram, I.Naydenova, S.Martin, R.Howard, V.Toal, “Spatial Frequency response of acrylamide-based holographic photopolymer”, International Conference on Laser Applications and Optical Metrology conference, pp.275-279, 2003.

6. J.Raghavendra, I.Naydenova, V.Toal, S. Martin, “Influence of photopolymer composition on the spectral response of the humidity sensitive hologram”, Optoinformatics 2008, 20th – 22nd August 2008, National University of Maynooth, Maynooth, Ireland.

7. B.Viswanath, J.Raghavendra, E.Mihaylova, V.Toal, “Design of holographic optical elements for electronic speckle pattern interferometry”, Optoinformatics 2008, 20th – 22nd August 2008, National University of Maynooth, Maynooth, Ireland.

8. M.Chakrapani, J.Raghavendra, S. Martin, V. Toal, “Colour holography in an acrylamide based photopolymer” Photonics North-West 2008, 8th May 2008, Manchester, United Kingdom.

9. I.Naydenova, J.Raghavendra, V.Toal, S. Martin, “Acrylamide-based photopolymer reflection hologram for environmental humidity indication”, EUROPTRODE IX: Ninth European Conference on Optical Chemical Sensors and Biosensors, 30th March-2nd April 2008, Crown Plaza Hotel, Dublin, Ireland.

10. K.Pavani, I.Naydenova, J.Raghavendra, R.G.Howard, S.Martin, V.Toal, “Characterization of holographic polymer dispersed liquid crystal diffraction gratings”, IOP spring weekend meeting, 7th to 9th March 2008 at Nuremore hotel, Co. Monaghan, Ireland.

11. M.Chakrapani, J.Raghavendra, S.Martin, V.Toal, “A step towards full colour holography in an acrylamide based photopolymer”, Photonics Ireland 2007 conference, 24th to 26th September 2007 at Galway Bay Hotel, Galway.

12. B.Viswanath, J.Raghavendra, V.Toal, “Electronic speckle pattern interferometer using holographic optical elements”, Photonics Ireland 2007 conference, 24th to 26th September 2007 at Galway Bay Hotel, Galway.

13. I.Naydenova, J.Raghavendra, V.Toal, S.Martin, “Holographic humidity indicator”, Photonics Ireland 2007 conference, 24th to 26th September 2007 at Galway Bay Hotel, Galway.

14. M.Chakrapani, J.Raghavendra, S.Martin, V.Toal, “Two colour reflection holograms in an acrylamide based photopolymer”, IOP spring weekend meeting, 30th March to 1st April 2007 in the County Arms Hotel, Birr, Co. Offaly.

15. R.Jallapuram, I.Naydenova, S.Martin, R.Howard, V.Toal, entitled “Bit-Oriented Holographic Data Storage in Acrylamide-based Holographic Photopolymer” at IOP Spring Weekend Meeting, Armagh, 2004.

16. R.Jallapuram, S.Martin, R.Howard, V.Toal, “Spatial frequency response of acrylamide-based photopolymer for holographic recording”, Condensed Matter Materials Physics conference, Belfast, 2003.

17. R.Jallapuram, S.Martin, R.Howard, V.Toal, “Spatial frequency response of acrylamide-based photopolymer”, IOP Spring Weekend Meeting, Physics Research in Ireland, Westport, 11-13 April 2003.

Patent applications

1. I.Naydenova, H.Sherif, S.Martin, R.Jallapuram and V.Toal, "A Holographic Sensor" PCT Patent application No. IE2006/000134 filed on Nov 27th 2006.