Dr STEPHEN CREAGH's Outputs (6)

Wireless power distributions in multi-cavity systems at high frequencies (2021)
Journal Article
Adnan, F., Blakaj, V., Phang, S., Antonsen, T. M., Creagh, S. C., Gradoni, G., & Tanner, G. (2021). Wireless power distributions in multi-cavity systems at high frequencies. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 477(2245), Article 20200228. https://doi.org/10.1098/rspa.2020.0228

The next generations of wireless networks will work in frequency bands ranging from sub-6 GHz up to 100 GHz. Radio signal propagation differs here in several critical aspects from the behaviour in the microwave frequencies currently used. With wavele... Read More about Wireless power distributions in multi-cavity systems at high frequencies.

Modeling propagation in large deformed step-index fibers using a finite operator method (2019)
Journal Article
Kumar, D. S., Creagh, S. C., Sujecki, S., & Benson, T. M. (2019). Modeling propagation in large deformed step-index fibers using a finite operator method. Journal of the Optical Society of America B, 36(5), 1208-1221. https://doi.org/10.1364/josab.36.001208

© 2019 Optical Society of America. A finite operator model is applied to the propagation of light in deformed step-index fibers. The distribution of the light captured by the fiber from an arbitrary initial excitation is illustrated in the phase spac... Read More about Modeling propagation in large deformed step-index fibers using a finite operator method.

Analysis of Nonstationary Emissions for Efficient Characterization of Stochastic em Fields (2018)
Presentation / Conference Contribution
Baharuddin, M. H., Smartt, C., Maricar, M. I., Thomas, D. W., Gradoni, G., Creagh, S. C., & Tanner, G. (2018, August). Analysis of Nonstationary Emissions for Efficient Characterization of Stochastic em Fields. Presented at International Symposium and Exhibition on Electromagnetic Compatibility (EMC EUROPE 2018), Amsterdam, Netherlands

A statistical approach using field-field correlation functions which is obtained from two-probe time domain measurement is used to characterize the radiation from complex devices. The time-frequency analysis provided by the measurement data has shown... Read More about Analysis of Nonstationary Emissions for Efficient Characterization of Stochastic em Fields.

Wigner-Function-Based Propagation of Stochastic Field Emissions from Planar Electromagnetic Sources (2017)
Journal Article
Gradoni, G., Arnault, L. R., Creagh, S. C., Tanner, G., Baharuddin, M. H., Smartt, C., & Thomas, D. W. (2018). Wigner-Function-Based Propagation of Stochastic Field Emissions from Planar Electromagnetic Sources. IEEE Transactions on Electromagnetic Compatibility, 60(3), 580-588. https://doi.org/10.1109/TEMC.2017.2738329

© 1964-2012 IEEE. Modeling the electromagnetic radiation from modern digital systems - acting effectively as extended stochastic sources as part of a complex architecture - is a challenging task. We follow an approach here based on measuring and prop... Read More about Wigner-Function-Based Propagation of Stochastic Field Emissions from Planar Electromagnetic Sources.

Modelling chaos in asymmetric optical fibres (2017)
Presentation / Conference Contribution
Kumar, D. S., Creagh, S., Sujecki, S., & Benson, T. M. (2017, July). Modelling chaos in asymmetric optical fibres. Presented at 2017 19th International Conference on Transparent Optical Networks (ICTON), Girona, Spain

A ray dynamical approach is developed for the study of large-core asymmetric step index fibres (SIF), especially those made from chalcogenide glasses (ChGs) which can exhibit very high refractive index, large numerical aperture, and which are transpa... Read More about Modelling chaos in asymmetric optical fibres.

Time-modulated gain and loss parity-time symmetric resonators
Presentation / Conference Contribution
Phang, S., Vukovic, A., Creagh, S., Gradoni, G., Sewell, P., & Benson, T. M. Time-modulated gain and loss parity-time symmetric resonators. Presented at 24th International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling (OWTNM 2016)