Postdoctoral Position On Carbon Nanotube Based Nonlinear Photonic Crystal Fibers : Brussels, Belgium

CONTEXT
This job is offered by the Brussels Photonics (B-PHOT) research group of the Vrije Universiteit Brussel (VUB) in Belgium. B-PHOT, chaired by prof. Hugo Thienpont, is a widely known photonics research group which has been active in the field for more than 25 years. With 45 international experts in fundamental and applied photonics research, B-PHOT covers the entire research cycle from modelling and fabrication to characterization and proof-of-concept demonstration (http://www.b-phot.org/). 
Over the last decade, B-PHOT also acquired theoretical and experimental expertise on modelling and design of photonic crystal fibres using dedicated software platforms, as well as on characterisation and implementation of PCFs for various applications. In particular, the group achieved breakthroughs in the demonstration of PCFs for low-bending loss fibres ¹, large mode area fibre lasers ² and optical fibre sensors based on fibre Bragg gratings ³-⁵.
References:
¹ J. Van Erps, C. Debaes, T. Nasilowski, J. Watté, J. Wojcik, H. Thienpont, “Design and tolerance analysis of a low bending loss hole-assisted fiber using statistical design methodology,” Optics Express, Vol. 16, No. 7, pp. 5061–5074 (2008).
² M. Napierała, T. Nasilowski, E. Bereś-Pawlik, P. Mergo, F. Berghmans, and H. Thienpont, "Large-mode-area photonic crystal fiber with double lattice constant structure and low bending loss," Optics Express 19, 22628-22636 (2011).
³ F. Berghmans, T. Geernaert, T. Baghdasaryan, and H. Thienpont, “Challenges in the fabrication of fibre Bragg gratings in silica and polymer microstructured optical fibres”. Laser & Photonics Reviews, Vol. 8, pp. 27-52 (2014).
⁴ T. Geernaert, F. Berghmans, H. Thienpont, “Microstructured Fibers: Butterfly microstructured fiber complements FBG-based sensing”, Laser Focus World, July 2015, pp. 43-47 (2015).
⁵ T. Baghdasaryan, T. Geernaert, H. Thienpont, and F. Berghmans, "Numerical modeling of femtosecond laser inscribed IR gratings in photonic crystal fibers," Opt. Express, Vol. 23, pp. 709-723 (2015).

The job will be supervised by prof. Thomas Geernaert and prof. Francis Berghmans and is situated in the multidisciplinary research project CHARMING that also relies on dedicated photonic crystal fibres. The CHARMING project, funded by the Belgian EOS (Excellence of Science) programme and involving 7 partners with B-PHOT member prof. Francis Berghmans as project coordinator, targets groundbreaking photonics research and has kicked-off in January 2018 with a duration of 4 years.

JOB DESCRIPTION
The objective for the postdoctoral researcher within the multi-partner project is to combine innovative photonic crystal fibre technologies with the peculiar optical properties of carbon nanotubes (CNTs) to enable a new generation of second harmonic generation based microscopy.

• She/he will carry out extensive simulations for investigating and designing dedicated optical fibres for this purpose whilst also guiding the fabrication of the fibres, and the CNT hybrids insertion within the fibres.
• She/he will optimize the devices consisting of dispersion and phase-engineered micro-structured optical fibres equipped with CNTs in view of the second harmonic generating functionality that needs to be achieved, taking into account the actual manufacturing constraints.
• In addition to the simulation work, the Post-Doc will characterize the fibres once purchased or fabricated. She/he will participate in the fabrication during stays at UMCS (Lublin, Poland) and the University of Antwerp (Antwerp, Belgium).
• In view of the groundbreaking nature of the targeted research, there will be plenty of opportunity for the Post-Doc researcher to strengthen his/her research track record with high-impact publications.

CANDIDATE PROFILE

• Candidates should have a PhD degree in Photonics or Physics.
• A strong background in experimental work on photonic crystal fibres and/or nonlinear optics and knowledge of (finite element) modeling software (COMSOL or equivalent) are a must.
  Candidates should have proven experience with handling and implementing photonic crystal fibres.
• Candidates with a strong interest in multidisciplinary problems and with both theoretical and experimental skills will be favored.
• Candidates should be able to carry out their research activities in an independent manner, whilst having excellent communication skills and a positive attitude towards collaboration.
• Regular interaction in a professional and constructive manner with the B-PHOT team members and with the project partners will be crucial.
• Proficiency in both spoken and written English (CEFR level C1 or equivalent) is required.
  You should be prepared to travel within Belgium and within Europe to the CHARMING project partners for joint experiments and meetings.
• As B-PHOT's main research centre is situated outside Brussels, candidates are preferred to have a driving license recognized as valid in the EU.

OFFER

• A 3-year full-time postdoctoral research position (with possibilities for extension)
• High-tech working environment in the new VUB Photonics Innovation Centre situated in Gooik outside Brussels with large-scale equipment for the fabrication, characterization and demonstration of photonic components and systems (http://www.b-phot.org/www/Industrial-photonics/Photonics-Innovation-Center)
• Participation in a fully funded multidisciplinary research project
• An international working environment and an extensive collaborative network.
• Vrije Universiteit Brussel is a dynamic university with 4 campuses in and around Brussels, one of which is situated in Gooik and fully dedicated to photonics research. The university is strongly research oriented with a #182 ranking among universities worldwide.
• Hospitalisation cover and free use of public transport for travel to and from work are standard conditions of employment (see www.vub.ac.be under the heading ‘future employees’)

APPLICATION
Please send your application to Prof. Thomas Geernaert (tgeernae@b-phot.org) by e-mail before 15th October 2018.
All applications must at least include the following attachments:

• a detailed CV
• copy of the PhD diploma
• at least 1 letter of recommendation
• publication list
• a concise motivation letter specifying the reason for applying

KEYWORDS
Optics, Photonics, Nonlinear Optics, Second-Harmonic Generation, Optical Fibers, Bio-Imaging, Theoretical & Experimental Optics…

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