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Ir. John George

This person is working in this group since 2011.

Affiliation:	Ghent University INTEC-ELIS
Address:	Sint-Pietersnieuwstraat 41 9000 Gent Belgium
Office:	Technicum,
Phone:	+32-9-264 8952
E-mail:	John.PuthenParampilGeorge@elis.ugent.be
Research Area:	Si/PZT Ultrafast modulators
PhD Thesis:	John George, Integratie van ferro-elektrische dunne lagen op silicium voor toepassing in elektro-optische componenten, Integration of Ferroelectric Thin Films on Silicon for Electro-Optic Devices, 5/2016

Specific Research Topics

Silicon integration with perovskites for electro-optical modulators

Publications (14)

International Journals

K. Alexander, J. George, J. Verbist, K. Neyts, B. Kuyken, D. Van Thourhout, J. Beeckman, Nanophotonic Pockels modulators on a silicon nitride platform, Nature Communications, 9(1), p.3444 doi:10.1038/s41467-018-05846-6 (2018) .
J. George, P. Smet, J. Botterman, V. Bliznuk, W.MF Woestenborghs, D. Van Thourhout, K. Neyts, J. Beeckman, Lanthanide-assisted deposition of strongly electro-optic PZT thin films on silicon : toward integrated active nanophotonic devices, Journal, 7(24), p.13350-13359 doi:10.1021/acsami.5b01781 (2015) .
Y. Xing, T. Ako, J. George, D. Korn, H. Yu, P. Verheyen, M. Pantouvaki, G. Lepage, P. Absil, A. Ruocco, C. Koos, J. Leuthold, K. Neyts, J. Beeckman, W. Bogaerts, Digitally Controlled Phase Shifter using an SOI Slot Waveguide with Liquid Crystal Infiltration, Photonics Technology Letters, doi:10.1109/LPT.2015.2416438 (2015) .
J. George, J. Beeckman, W. Woestenborghs, P.F. Smet, W. Bogaerts, Preferentially oriented BaTiO3 thin films deposited on silicon with thin intermediate buffer layers, Nanoscale Research Letters, 8, p.1-7 doi:10.1186/1556-276x-8-62 (2013) .

International Conferences

G.F Feutmba, T. Van de Veire, I. Ansari, J. George, D. Van Thourhout, J. Beeckman, A Strong Pockels PZT/Si Modulator for Efficient Electro-Optic Tuning, OSA Advanced Photonics Congress (AP) 2020, p.ITu1A.6 (2020) .
I. Ansari, T. Van de Veire, J. George, G.F Feutmba, J. Beeckman, D. Van Thourhout, Si-photonic integrated PZT thin film for acousto-optic modulation, Conference on Lasers and Electro-Optics, United States, p.JTh2B.24 (2020) .
I. Ansari, T. Van de Veire, J. George, G.F Feutmba, J. Beeckman, D. Van Thourhout, Piezoelectric characterization of Si-photonic integrated PZT thin film, Annual Symposium of the IEEE Photonics Society Benelux Chapter, Netherlands, (2019) .
K. Alexander, J. George, G.F Feutmba, I. Luntadila Lufungula, K. Neyts, B. Kuyken, J. Beeckman, D. Van Thourhout, Nanophotonic PZT-on-SiN Pockels modulators, Smart Photonic and Optoelectronic Integrated Circuits XXI (SPIE Photonics West) (invited), 10922, United States, (2019).
J. George, K. Alexander, B. Kuyken, D. Van Thourhout, J. Beeckman, Advances in PZT-on-SiN electro-optic modulator platform, Advanced Photonics Congress, Switzerland, p.paper ITh3B.2 (2 pages) doi:10.1364/iprsn.2018.ith3b.2 (2018) .
K. Alexander, J. George, B. Kuyken, J. Beeckman, D. Van Thourhout, Broadband Electro-optic Modulation using Low-loss PZT-on-Silicon Nitride Integrated Waveguides, CLEO:2017 (Postdeadline), United States, doi:10.1364/cleo_at.2017.jth5c.7 (2017) .
D. Van Thourhout, M. Pantouvaki, H. D'heer, K. Alexander, B. Kuyken, I. Asselberghs, S. Brems, C. Huyghebaert, L. Abdollahi Shiramin, C. Alessandri, J. George, J.Beeckman, M. Hsu, C.Merckling, J. Van Campenhout, New materials for modulators and switches in silicon photonics, SPIE , United States, p.paper 10108-3 (2017) .
D. Van Thourhout, Z. Wang, B. Tian, Y. Shi, M. Pantouvaki, C. Merckling, Y. Hu, I. Asselberghs, S. Brems, L. Abdollahi Shiramin, C. Alessandri, J. George, J. Beeckman, M. Hsu, P .Absil, J. Van Campenhout, New Materials for Multifunctional Photonic ICs, Conferencia Españolade Nanofotonica (invited), Spain, p.81 (2016) .
D. Van Thourhout, Z. Wang, B. Tian, Y. Hu, J. George, J. Beeckman, M. Pantouvaki, C. Merckling, I. Asselberghs, S. Brems, P. Absil, M. Hsu, J. Van Campenhout, New materials and devices for optical interconnect, Opto-Electronics and Communications Conference (OECC), 2015 (invited), China, doi:10.1109/OECC.2015.7340154 (2015).
Y. Xing, T. Ako, J. George, D. Korn, H. Yu, P. Verheyen, M. Pantouvaki, G. Lepage, P. Absil, C. Koos, J. Leuthold, J. Beeckman, W. Bogaerts, Direct Digital Control of an Efficient Silicon+Liquid Crystal Phase Shifter, 11th International Conference on Group IV Photonics (GFP), France, p.43-44 doi:10.1109/group4.2014.6962029 (2014) .

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