Jean-Michel Le Floch

Assistant Professor, PhD W.Aust.

Adjunct Senior Research Fellow, Faculty of Engineering and Mathematical Sciences, Physics

Phone+61 8 6488 3716
Emailjeanmichel.lefloch@uwa.edu.au

The University of Western Australia (M013), 35 Stirling Highway,
6009 Perth
Australia

521 Citations
14 h-Index

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Personal profile

Biography

Jean-Michel Le Floch received his PhD degree from both the University of Limoges, France and the University of Western Australia (UWA), Perth, Australia. He studied high Q dielectric resonators using Bragg reflectors and also whispering gallery modes for metrology applications. In 2007, he was working as an engineer at XLIM research institute. In 2008, he was an Australian Research Council postdoctoral fellow with a ARC International linkage scheme in the Frequency Standards and Metrology (FSM) Group located in the School of Physics at UWA in Perth. Then in 2009, he has been appointed with a 3 year position as an ARC APD in the FSM Group then followed by a two year contract as a research associate where his current work involves designing low phase noise oscillators at extremely high frequencies (EHF), and generate very high stable source in millimetre waves. In 2013 he has been promoted to Research Assistant Professor level.

Previous positions

2012-2014 Research Associate, FSM Group, UWA, Perth
2009-2012 ARC APD, FSM Group, UWA, Perth
2008 Research Associate, FSM Group, UWA, Perth
2007 Contracted CNRS Engineer, XLIM, Limoges, France

Research

dielectric; resonator; thin film; ferroelectrics; ferromagnetic; susceptibility; electromagnetic; characterisation; microwave; millimetre wave; mmwave

Languages

English
French
Mandarin (Intermediate 1)

Keywords

Low noise oscillators
Computational physics (electromagnetic modelling)
Microwave and millimetre wave technologies
Material science characterisation (solid state thin films, bulk dielectric)

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Research Output 2005 2019

521 Citations
14 h-Index
52 Article
8 Conference paper
1 Letter

Ferroelectric phase transition and crystal asymmetry monitoring of SrTiO₃ using quasi TE _m,1,1 and quasi TM _m,1,1 modes

Hosain, M. A., Le Floch, J. M., Bourhill, J. F., Krupka, J. & Tobar, M. E., 14 Sep 2019, In : Journal of Applied Physics. 126, 10, 104102.

Research output: Contribution to journal › Article

asymmetry

Q factors

crystals

temperature

cavities

3 Citations (Scopus)

Aggregate frequency width, nuclear hyperfine coupling and Jahn-Teller effect of Cu²⁺ impurity ion ESR in SrLaAlO₄ dielectric resonator at 20 millikelvin

Hosain, M. A., Le Floch, J. M., Krupka, J. & Tobar, M. E., 10 Jan 2018, In : Journal of Physics Condensed Matter. 30, 1, 015802.

Research output: Contribution to journal › Article

Jahn-Teller effect

Dielectric resonators

Paramagnetic resonance

Anisotropy

resonators

Rigorous ESR spectroscopy of Fe3+ impurity ion with oxygen vacancy in ferroelectric SrTiO3 crystal at 20 mK

Hosain, M. A., Le Floch, J-M., Krupka, J. & Tobar, M. E., 25 Jul 2018, In : Journal of Physics-Condensed Matter. 30, 29, 6 p., 295805.

Research output: Contribution to journal › Article

Whispering gallery mode dielectric spectroscopy of SrLaAlO₄ at milliKelvin temperatures

Hosain, M. A., Le Floch, J. M., Krupka, J., Bourhill, J. F. & Tobar, M. E., 21 Jun 2018, In : Journal of Applied Physics. 123, 23, 234103.

Research output: Contribution to journal › Article

whispering gallery modes

Q factors

spectroscopy

temperature

microwaves

139 Downloads (Pure)

Frequency-temperature sensitivity reduction with optimized microwave Bragg resonators

Le Floch, J. M., Murphy, C., Hartnett, J. G., Madrangeas, V., Krupka, J., Cros, D. & Tobar, M. E., 7 Jan 2017, In : Journal of Applied Physics. 121, 1, 014102.

Research output: Contribution to journal › Article

Open Access

File

resonators

microwaves

Q factors

temperature

whispering gallery modes