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Journal articles (Scopus database):

Ate

• 36.- Resonant Tunnelling Diode Terahertz Sources with up to 1 mW Output Power in the J-Band, Al-Khalidi, Abdullah; Alharbi, Khalid; Wang, Jue; Morariu, Razvan; Wang, Liquan; ,Khalid, Ata; Figueiredo, José; Wasige, Edward; Transactions on Terahertz Science and Technology (PDF) DOI: 10.1109/TTHZ.2019.2959210.  
• 35.- Accurate Small-Signal Equivalent Circuit Modelling of Resonant Tunneling Diodes to 110 GHz, Morariu, R., Cornescu, A. C., Morariu, R. , Ofiare, A., Al-Khalidi, A. , Wang, J., Figueiredo, J. M.L. and Wasige, E., IEEE Transactions on Microwave Theory and Techniques . (PDF) DOI:  10.1109/TMTT.2019.2939321  
  
• 34.- High efficiency bias stabilisation for resonant tunneling diode oscillators, Cornescu, A. C., Morariu, R. , Ofiare, A., Al-Khalidi, A. , Wang, J., Figueiredo, J. M.L. and Wasige, E., IEEE Transactions on Microwave Theory and Techniques. (PDF) DOI: 10.1109/TMTT.2019.2916602. 
• 33.- Optical Direct Intensity Modulation of a 79 GHz Resonant Tunneling Diode-Photodetector Oscillator, Weikang Zhang, Scott Watson, José Figueiredo et al., OPTICS EXPRESS Vol. 27, No. 12, 10 Jun 2019, 16791-16797. (PDF) DOI 10.1364/OE.27.016791.
  
• 32.- Resonant tunneling diode photodetectors for optical communications, Scott Watson, Weikang Zhang, Joana Tavares, Jose Figueiredo, Horacio Cantu, Jue Wang, Edward Wasige, Henrique Salgado, Luis Pessoa, Anthony Kelly, Microwave and Optical Technology Letters, Microw Opt Technol Lett. 2019;1–5. (PDF) DOI: 10.1002/mop.31689.  
  

Ate 2018  

• 31.- Delay dynamics of neuromorphic optoelectronic nanoscale resonators: Perspectives and applications; Bruno Romeira; Julien Javaloyes; CHAOS, Volume: 27, Issue: 11, Article Number: 114323. Published: NOV 2017. DOI: 10.1063/1.5008888. (PDF)
• 30.- Regenerative memory in time-delayed neuromorphic photonic resonators, B Romeira, R Avo, Jose ML Figueiredo, S Barland, J Javaloyes, (PDF), SCIENTIFIC REPORTS | 5:19510 | DOI 10.1038/srep19510. IF 5.578
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  .- iBROW - Innovative ultra-BROadband ubiquitous Wireless communications through terahertz transceivers, Luis Pessoa, Bile Peng, Jue Wang et al., IEEE COMSOC MMTC Communication - Frontiers 11, p. 11-16 (Jan-2016).
  

Ate =2015

• 29.- High-Speed Spiking and Bursting Oscillations in a Long-Delayed Broadband Optoelectronic Oscillator, B. Romeira, F. Kong, W. Li, J. M. L. Figueiredo, J. Javaloyes, and J. P. Yao, IEEE/OSA Journal of Lightwave Technology, Vol. 33 (2), pp. 503-510, 2015. (PDF) DOI: 10.1109/JLT.2014.2376775. IF: 2.965
• 28.- Broadband chaotic signals and breather oscillations in an optoelectronic oscillator incorporating a microwave photonic filter, B. Romeira, F. Kong, W. Li, J. M. L. Figueiredo, J. Javaloyes, and J. P. Yao, IEEE/OSA Journal of Lightwave Technology, Vol. 32 (20), pp. 3933-3942, 2014. (PDF) DOI: 10.1109/JLT.2014.2308261. IF: 2.965
• 27.- Stochastic induced dynamics in neuromorphic optoelectronic oscillators, B. Romeira, R. Avo, J. Javaloyes, S. Balle, C. N. Ironside, and J. M. L. Figueiredo, Optical and Quantum Electronics, Vol. 46 (10), pp. 1391-1396, 2014. (PDF) DOI: 10.1007/s11082-014-9905-3. IF: 0.987
• 26.- Excitability and optical pulse generation in semiconductor lasers driven by resonant tunneling diode photo-detectors, B. Romeira, J. Javaloyes, C. N. Ironside, J. M. L. Figueiredo, S. Balle, and O. Piro, Optics Express, Vol. 21 (18), pp. 20931-20940, Setembro 2013. (PDF) DOI: 10.1364/OE.21.020931. IF: 3.488
• 25.- Wireless interrogation of an optically modulated resonant tunnelling diode oscillator, Cantu, H. I.; Romeira, B.; Kelly, A. E.; Ironside, C. N.; Figueiredo, J. M. L., Microwave and Optical Technology Letters, Vol. 55 (8), 1728-1730, Agosto 2013. (PDF) DOI: http://onlinelibrary.wiley.com/doi/10.1002/mop.27734/full IF: 0.618
• 24.- Photo-detectors integrated with resonant tunneling diodes, B. Romeira, L. Pessoa, H. M. Salgado, C. N. Ironside, and J. M. L. Figueiredo, Sensors, vol. 13 (7), pp. 9464-9482, Julho 2013. (PDF) DOI: 10.3390/s130709464. IF: 2.245
• 23.- Modulation Accuracy of Binary Phase-Shift Keying Signal Broadcast after Injection Locking of a Resonant Tunnelling Diode Microwave Oscillator, Cantu, H. I.; Romeira, B.; Kelly, A. E.; Ironside, C. N.; Figueiredo, J. M. L., Microwave and Optical Technology Letters, Vol. 55 (4), 705-711, Abril 2013. (PDF) DOI 10.1002/mop.27403 IF: 0.618
• 22.- An Optical to Wireless Data Link using Radio Frequency Backscatter, H. I. Cantu, C. N. Ironside, A. E. Kelly, B. Romeira, and J. M. L. Figueiredo, IEEE Microwave and Wireless Components Letters, Vol. 23 (2), 102-104, Fev. 2013. DOI http://dx.doi.org/10.1109/LMWC.2013.2239983 IF: 1.7 (PDF)
• 21.- Delayed Feedback Dynamics of Lienard-type Resonant Tunneling-Photo-Detector Optoelectronic Oscillators, B. Romeira, Julien Javaloyes, Jose Figueiredo, Charles N. Ironside, Horacio Cantu, A. Kelly; IEEE JOURNAL OF QUANTUM ELECTRONICS, VOL. 49, NO. 1, pp. 31-42, Jan. 2013. (PDF) DOI http://dx.doi.org/10.1109/JQE.2012.2225415 IF: 1.879

Ate 2012

• 20.- Resonant Tunneling Diode Optoelectronic Circuits Applications in Radio-Over-Fiber Networks; Cantu, H. I.; Romeira, B.; Kelly, A. E.; Ironside, C. N.; Figueiredo, J. M. L. Microwave Theory and Techniques, IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 60, NO. 9, pp. 2903-2912, 2012. (PDF) http://dx.doi.org/10.1109/TMTT.2012.2206606 IF: 1.853
• 19.- A Self-Synchronized Optoelectronic Oscillator based on an RTD Photo-Detector and a Laser Diode, B. Romeira, K. Seunarine, C. N. Ironside, A. E. Kelly, J. M. L. Figueiredo, IEEE Photon. Technol. Lett., 23 (16), pp. 1148-1150, 2011. (PDF) http://dx.doi.org/10.1109/LPT.2011.2154320 IF: 2.191
• 18.- DC Characterization of Tunnel Diodes Under Stable Non-Oscillatory Circuit Conditions, L. Wang, J. M. L. Figueiredo, C. N. Ironside, E. Wasige, IEEE Transactions on Electron Devices, 58 (2), pp. 343-347, 2011. (PDF) http://dx.doi.org/10.1109/TED.2010.2091507 IF: 2.318
• 17.- Optical Control of a Resonant Tunneling Diode Microwave-Photonic Oscillator, B. Romeira, J. M. L. Figueiredo, C. N. Ironside, A. E. Kelly, T. J. Slight, IEEE Photonics Technology Letters, vol. 22, no. 21, pp. 1610-1612, 2010. (PDF) https://doi.org/10.1109/LPT.2010.2076331 IF: 2.191
• 16.- Chaotic Dynamics in Resonant Tunneling Optoelectronic Voltage Controlled Oscillators, B. Romeira, J. M. L. Figueiredo, C. N. Ironside, T. J. Slight, IEEE Photonics Technology Letters, vol. 21, no. 24, pp. 1819-1821, 2009. (PDF) https://doi.org/10.1109/LPT.2009.2034129 IF: 2.191
• 15.- Nonlinear Dynamics of Resonant Tunneling Optoelectronic Circuits for Wireless/Optical Interfaces, B. Romeira, J. M. L. Figueiredo, T. J. Slight, L. Wang, E. Wasige, C. N. Ironside, A. E. Kelly, R. Green, IEEE Journal of Quantum Electronics, vol. 45, no. 11, pp. 1436-1445, 2009. (PDF) https://doi.org/10.1109/JQE.2009.2028084 IF: 1.879
• 14.- Synchronization and Chaos in a Laser Diode Driven by a Resonant Tunneling Diode, Bruno Romeira, Jose M. L. Figueiredo, Thomas J. Slight, Liquan Wang, Edward Wasige, Charles N. Ironside, Jose M. Quintana, and Maria J. Avedillo, IET Optoelectronics 2 (6), 211-215 (2008). (PDF)  http://dx.doi.org/10.1049/iet-opt:20080024 IF: 1.105
• 13.- A Lienard Oscillator Resonant Tunnelling-Laser Diode Hybrid Integrated Circuit: Model and Experiment, T. J. Slight, B. Romeira, L. Wang, J. M. L. Figueiredo, E. Wasige, and C. N. Ironside, IEEE J. Quant. Electron. 44 (12), 1158-1163 (2008). (PDF) https://ieeexplore.ieee.org/document/4674657 IF: 1.879
• 12.- Self-oscillation and period adding from a resonant tunnelling diode - laser diode circuit, J. M. L. Figueiredo, B. Romeira, T. J. Slight, L. Wang, E. Wasige, and C. N. Ironside, Electron. Lett. 44 (14), 876-877 (2008). (PDF) http://dx.doi.org/10.1049/el:20080350 IF: 1.001

Ate 2006

• 11.- Coherent approach to transport and noise in double-barrier resonant diodes, V. Ya. Aleshkin, L. Reggiani, N. V. Alkeev, V. E. Lyubchenko, C. N. Ironside, J. M. L. Figueiredo, and C. R. Stanley, Phys. Rev. B, 70, 115321 (2004). (PDF) https://doi.org/10.1103/PhysRevB.70.115321 IF: 3.772
• 10.- Giant suppression of shot noise as signature of coherent transport in double barrier resonant diodes, V.Ya. Aleshkin, L. Reggiani, N.V. Alkeev, V.E. Lyubchenko, C.N. Ironside, J.M.L. Figueiredo, C.R. Stanley, Semicond. Sci. Technol., 19 4, S161-S163 (2004). (PDF) https://doi.org/10.1088/0268-1242/19/4/056
• 9.- Modeling of Light Sensitive Resonant-Tunneling-Diode Devices, I. J. S. Coelho, J. F. Martins-Filho, J. M. L. Figueiredo, and C. N. Ironside, Journal of Applied Physics, 95, 12, pp. 8258-8263 (2004). (PDF)  https://doi.org/10.1063/1.1728290 IF: 2.064
• 8.- Reply to Comment on "Giant suppression of shot-noise in double barrier resonant diode: a signature of coherent transport", V.Ya. Aleshkin, L. Reggiani, N.V. Alkeev, V.E. Lyubchenko, C.N. Ironside, J.M.L. Figueiredo, C.R.Stanley, Semicond. Sci. Technol. 19, 5, pp. 665-666 (2004). (PDF) https://doi.org/10.1088/0268-1242/19/5/N04
• 7.- Giant suppression of shot noise in double barrier resonant diode: a signature of coherent transport, V.Ya. Aleshkin, L. Reggiani, N.V. Alkeev, V.E. Lyubchenko, C.N. Ironside, J.M.L. Figueiredo, C.R. Stanley, Semicond. Sci. Technol. 18, 6, L35-L38 (2003). (PDF) https://doi.org/10.1088/0268-1242/18/6/103 IF: 1.323
• 6.- Ultralow voltage resonant tunnelling diode electroabsorption modulator, J. M. L. Figueiredo, C. N. Ironside, and C. R. Stanley, Journal Modern Optics, 49, 5, pp. 939 - 945 (2002). (PDF) https://doi.org/10.1080/09500340110108990 IF: 0.98
• 5.- Current noise in resonance tunnel diodes based on InGaAlAs heterostructures, V. Alkeev, V. E. Lyubchenko, C. N. Ironside, J. M. L. Figueiredo, C. R. Stanley, Journal of Communications Technology and Electronics, 47, 2, pp. 238-231, 2002. (PDF) IF: 0.339; Current noise in resonance tunnel diodes based on InGaAlAs heterostructures, Alkeev, N. V.; Lyubchenko, V. E.; Ironside, C. N.; Figueiredo, J. M. L.; Stanley,C. R., Radiotekhnika i Elektronika, 47, 2, pp. 249-252 (2002).
• 4.- Electric field switching in a resonant tunneling diode electroabsorption modulator, J. M. L. Figueiredo, C. N. Ironside, and C. R. Stanley, IEEE Journal of Quantum Electronics, 37, 12, pp. 1547-1552 (2001). (PDF) https://doi.org/10.1109/EDMO.2000.919048 IF: 1.879
• 3.- Superhigh-Frequency Characteristics of Optical Modulators on the Basis of InGaAlAs Resonance-Tunnel Heterostructures, N. V. Alkeev, V. E. Lyubchenko, C. N. Ironside, J. M. L. Figueiredo, and C. R. Stanley, Journal of Communications Technology and Electronics, Vol. 45, No. 8, pp. 911-914, 2000. (PDF) IF: 0.339 ; Superhigh-frequency characteristics of optical modulators on the basis of InGaAlAs resonance-tunnel heterostructures, Alkeev, N. V.; Lyubchenko,V. E.; Ironside, C. N.; Figueiredo, J. M. L.; Stanley, C. R., Radiotekhnika i Elektronika, 45, 8, pp. 1010-1013 (2000).
• 2.- Optical modulation at around 1550 nm in a InGaAlAs optical waveguide containing a InGaAs/AlAs resonant tunneling diode, J. M. L. Figueiredo, A. R. Boyd, C. R. Stanley, C. N. Ironside, S. G. McMeekin, and A. M. P. Leite, Applied Physics Letters, Vol. 75, No. 22, pp. 3443-3445 (1999). (PDF) https://doi.org/10.1063/1.125290 IF: 3.820
• 1.- Optical modulation in a resonant tunneling relaxation oscillator, J. M. L. Figueiredo, C. R. Stanley, A. R. Boyd, C. N. Ironside, S. G. McMeekin, and A. M. P. Leite, Applied Physics Letters, Vol. 74, No. 9, pp. 1197-1199 (1999). (PDF) https://doi.org/10.1063/1.123497 IF: 3.820

Patents

• Osciladores Optoelectronicos contendo diodos de efeito de tunel ressonantes foto-detectores, Jose Figueiredo, Bruno Romeira, Charles Ironside, Patente de invencao nacional n.o 105533. (PATENTE CONCEDIDA em 17-04-2013) (PDF1 e PDF2)
• Methods and systems for optoelectronic oscillators, B. Romeira, J. M. L. Figueiredo, C. N. Ironside, T. J. Slight, Universidade do Algarve, Portugal, 2010, Patent Application 104973 (filing date 17-02-2010). (PDF)
• Interfaces and Method For Wireless-Optical and Optical-Wireless Conversion, J. M. L. Figueiredo, B. Romeira, C. N. Ironside, T. J. Slight, University of Glasgow, UK, 2010, Patent Applications GB2465184-A (publication date 12-05-2010); WO2010052481-A1 (publication date 14-05-2010). (PDF)
• Optoelectronic Device, C. N. Ironside, J. M. L. Figueiredo, University of Glasgow, UK, 2004, Patent Application US 20040247218 A1 (publication date 9-12-2004); Improved Optoelectronic Device, C. N. Ironside, J. M. L. Figueiredo, University of Glasgow, UK, 2002, Patent Applications WO02088834 (publication date 7-11-2002); JP2004524589T (publication date 2004-08-12), EP1381909 (publication date 2004-01-21), WO02088834 A3 (publication date 2003-04-17), CA2445566 (publication date 2002-11-07), WO02088834 A2 (publication date 2002-11-07). This technology was licensed to Essient Photonics Ltd, a spin-out from Glasgow University, launched in 2002. (PDF)
• Improved Optoelectronic Device, C. N. Ironside, C. R. Stanley, J. M. L. Figueiredo, University of Glasgow, UK, 2000, Patent Applications WO0072383, (publication date 30-11-2000); CA2398287 (publication date 2002-07-24), EP1183736 (publication date 2000-11-30), AU5092500 (publication date 2000-11-30), WO0072383 (publication date 2000-11-30). This technology was licensed to Essient Photonics Ltd, a spin-out from Glasgow University, launched in 2002. (PDF)

Thesis and reports   

• Optoelectronic Properties of Resonant Tunneling Diodes, doctorate thesis in Physics, Universidade do Porto in co-tutela with the University of Glasgow, 2000.
• Dispositivos Opticos Integrados para Multiplexagem de Comprimentos de Onda, Master thesis in Optoelectronics and Lasers, Universidade do Porto, 1995.
• Holographic optical elements aberration correction with an intermediate computer generated hologram, Physics (Electronics and Optics) degree final project report, realized under the Erasmus programme at the Vrije Universiteit Brussels and submitted to the Universidade do Porto, 1991.

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