Dr Rosa Letizia

Lecturer

Research Overview

Rosa Letizia's main research interests are focused on the area of Computational Modelling of artificial materials such as Photonic Band Gap (PBG) structures, linear and nonlinear, and Metamaterials for potential application into scaled-down particle accelerators and nano-photonics in general. She is also currently interested in the use of these composite materials for the exploitation of highly dispersive structures such as plasmonic waveguides in new frequency ranges of application. As a contribution to this field, Rosa Letizia has recently proposed a generalised MRTD scheme including a dispersion model of the complex refractive index of metals through various mathematical models such as Drude, Drude-Lorentz, and Drude-Critical Points model.

She serves as a regular reviewer for the most prestigious journals in photonics such as IEEE/OSA Journal of Lightwave Technology, IEEE Photonics Technology Letters, IEEE Journal of Quantum Electronics, IET Optoelectronics, Journal of Applied Optics, Journal of Optical and Quantum Electronics, Progress in Electromagnetic Research and many others.

Photonic crystal-structures for THz vacuum electron devices
Letizia, R., Mineo, M., Paoloni, C. 01/2015 In: IEEE Transactions on Electron Devices. 62, 1, p. 178-183. 6 p.
Journal article

Design and fabrication of a sheet beam BWO at 346 GHz
Paoloni, C., Letizia, R., Mineo, M., Malek Abadi, A., Popovic, B., Luhmann Jr., N.C., Himes, L., Barchfeld, R., Gamzina, D., Do, J., Yue, L., Tang, X., Feng, J., Tang, Y., Gao, M., Zhang, F. 2015
Conference paper

Magnetic fusion energy plasma diagnostic needs novel THz BWOs
Paoloni, C., Letizia, R., Mineo, M., Malek Abadi, A., Luhmann Jr., N.C., Popovic, B., Himes, L., Barchfeld, R., Gamzina, D., Yue, L., Tang, X., Feng, J., Tang, Y., Gao, M., Zhang, F. 2015
Conference paper

Optimization studies on CSRR loaded waveguide for particle accelerator applications
Sharples, E., Letizia, R. 2015 In: IEEE Proceedings.
Paper

Scenarios and use cases in Tweether: W-band for Internet Everywhere
Paoloni, C., Letizia, R., Ni, Q., Krozer, V., Andre, F., Magne, F., Marilier, M., Zimmerman, R., Ramirez, A., Vilar, R., Burciu, I., Polydoros, A., Bogucka, H. 2015
Conference paper

THz BWO based on photonic crystal corrugated waveguide
Letizia, R., Mineo, M., Paoloni, C. 2015
Conference paper

THz Backward-wave oscillators for plasma diagnostic in nuclear fusion
Paoloni, C., Letizia, R., Mineo, M., Yue, L., Tang, X., Zhang, F., Popovic, B., Himes, L., Barchfeld, R., Gamzina, D., Luhmann Jr., N.C. 2015
Conference paper

A fast interpolation approach for the calculation of permittivity and conductivity to estimate the SAR
Priyadarshi, S., Pitman, S., Glover, P., Shah, S., Hu, B., Letizia, R. 8/12/2014 In: RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-Bio), 2014 IEEE MTT-S International Microwave Workshop Series on. IEEE p. 261-266. 6 p.
Paper

Investigation of CSRR loaded waveguide for accelerator applications
Sharples, E., Letizia, R. 11/2014 In: Journal of Instrumentation. 13 p.
Journal article

THz backward wave oscillator based on PhC-wall corrugated waveguide
Letizia, R., Mineo, M., Paoloni, C. 04/2014 In: 15th IEEE International Vacuum Electronic Conference. Monterey, Calif. : IEEE p. 65-66. 2 p.
Paper

346 GHz BWO for fusion plasma diagnostics
Popovic, B., Barchfeld, R., Tang, X., Zhang, F., Yue, L., Mineo, M., Letizia, R., Paoloni, C., Domier, C.W., Luhmann Jr., N.C. 2014
Conference paper

346 GHz source for plasma diagnostic applications
Barchfeld, R., Popovic, B., Tang, X., Yue, L., Zhang, F., Mineo, M., Letizia, R., Paoloni, C., Domier, C.W., Luhmann Jr., N.C. 2014
Conference paper

Analysis of nitrides- and TCOs-based plasmonic waveguides for slow-wave and negative index sub-wavelength propagation
Letizia, R., Pinto, D. 2014 In: Journal of Lightwave Technology. 32, 8, p. 1578-1584 . 7 p.
Journal article

High power THz vacuum electron devices for space applications
Paoloni, C., Yue, L., Tang, X., Zhang, F., Popovic, B., Himes, L., Barchfeld, R., Gamzina, D., Letizia, R., Mineo, M., Luhmann Jr., N.C. 2014
Conference paper

InSb grating for Smith-Purcell THz radiation
Sharples, E., Letizia, R. 2014
Conference paper

THz Cherenkov radiation from electron beam excitation of surface plasmon polaritons
Letizia, R., Stoja, E. 2014
Conference paper

Wakefield excitation via metasurface-loaded waveguide
Sharples, E., Letizia, R. 2014 In: Proceedings of IPAC2014, Dresden, Germany. Geneva : JACoW p. 1437-1439. 3 p.
Paper

Efficient design of optical delay lines based on slotted-ring resonators
Abujnah, N., Letizia, R., Hameed, M., Obayya, S. 06/2013 In: IET Optoelectronics. 7, 3, p. 63-70. 8 p.
Journal article

Slotted microcavity ring resonators for optical storage applications
Abujnah, N.A., Letizia, R., Hameed, M.F.O., Abdelrazzak, M., Obayya, S. 06/2013 In: Optical and Quantum Electronics. 45, 6, p. 503-515. 13 p.
Journal article

New plasmonic materials based split ring resonators for high frequency applications
Sharples, E., Letizia, R. 2013
Conference paper

Photonic crystals assisted slow wave structure for THz vacuum devices
Letizia, R., Paoloni, C., Mineo, M., Pinto, D. 2013 In: 14th IEEE International Vacuum Electronic Conference. IEEE 2 p.
Paper

Semiconductor-based THz plasmonic metamaterial
Letizia, R. 2013 In: Millimeter Waves and THz Technology Workshop (UCMMT), 2013 6th UK, Europe, China. Piscataway, N.J. : IEEE 2 p.
Paper

Tapered metallic photonic crystal slow wave structure for THz vacuum electron devices
Letizia, R., Mineo, M., Paoloni, C. 2013 In: Millimeter Waves and THz Technology Workshop (UCMMT), 2013 6th UK, Europe, China. Piscataway, N.J. : IEEE 2 p.
Paper

Accurate analysis of plasmonic devices with a new Drude Critical Points MRTD method
Letizia, R., Pinto, D. 2012 In: IEEE Photonics Technology Letters. 24, 18, 4 p.
Letter

Double Negative Metamaterial Inclusions in Photonic Crystal Based Resonant Cavities
Letizia, R., Pinto, D. 2012
Conference paper

Design considerations of microcavity ring resonators
Abujnah, N., Letizia, R., Obayya, S.S.A. 08/2011 In: IET Optoelectronics. 5, 4, p. 158-164. 7 p.
Journal article

Design of a compact photonic crystal sensor
Derbali, J., AbdelMalek, F., Obayya, S.S.A., Bouchriha, H., Letizia, R. 07/2011 In: Optical and Quantum Electronics. 42, 8, p. 463-472. 10 p.
Journal article

Efficient Second Harmonic Generation Through Selective Photonic Crystal-Microcavity Coupling
Letizia, R., Obayya, S.S.A. 1/11/2009 In: Journal of Lightwave Technology. 27, 21, p. 4763-4772. 10 p.
Journal article

Accurate Multiresolution Time Domain Analysis of Microcavity Ring Resonator
Letizia, R., Obayya, S., Abujnah, N. 07/2009
Conference paper

Dispersive Multiresolution Time Domain for High Second Harmonic Generation Efficiency in One-Dimensional Periodic Grating
Letizia, R., Obayya, S. 07/2009
Conference paper

Multiresolution Time Domain of Dispersive High-index Contrast Grating for Second Harmonic Generation
Letizia, R., Obayya, S. 6/04/2009
Conference paper

Dispersive multiresolution time domain scheme for second harmonic generation devices
Letizia, R., Obayya, S. 04/2009 In: Optical waveguide theory and numerical modeling XVIII International Workshop. Fraunhofer Institute for Applied Optics and Precision Engineering 1 p.
Abstract

Efficient multiresolution time-domain analysis of arbitrarily shaped photonic devices
Letizia, R., Obayya, S.S.A. 12/2008 In: IET Optoelectronics. 2, 6, p. 241-253. 13 p.
Journal article

Multiresolution Time Domain Scheme for Dispersive Second Harmonic Generation Integrated Devices
Letizia, R., Obayya, S. 12/2008
Conference paper

Efficient Multiresolution Time Domain Analysis for Second Harmonic Generation Integrated Devices
Letizia, R., Obayya, S. 06/2008
Conference paper

New Design of Second Harmonic Generation Using Photonic Crystals
Letizia, R., Obayya, S. 03/2008
Conference paper

Novel Multiresolution Time Domain Analysis for Photonic Devices
Letizia, R., Obayya, S. 03/2008
Conference paper

Multiresolution Time Domain analysis of optical guided-wave devices
Obayya, S.S.A., Letizia, R. 2007 In: Computational Electromagnetics in Time-Domain, 2007. CEM-TD 2007. Workshop on. New York : IEEE p. 80-83. 4 p. ISBN: 978-1-4244-1169-6.
Conference contribution