SCALING: Study of complex gradient index optics compatible with laser structuring manufacturing

First Stage Researcher (R1) Positions: PhD Positions Application Deadline: 21 Sep 2026 - 12:00 (Europe/Paris) Country: France Type of Contract: Temporary Job Status: Full-time Offer Starting Date: 1 Jan 2027 Is the job funded through the EU Research Framework Programme?: Horizon Europe – COFUND Marie Curie Grant Agreement Number: 101177177 Is the Job related to staff position within a Research Infrastructure?: No Offer Description The LIGHTinPARIS programme has launched its 3rd call for PhD Fellowships with up to 6 fully funded positions starting on 1 January 2027 . The PhD projects on offer fall in the domain of the Institute for Sciences of Light (Université Paris-Saclay) covering photonics, optics, imaging, materials (chemistry), lasers, instrumentation, information, quantum technologies and more. The programme is cofunded by the European Union under Horizon Europe Marie Skłodowska-Curie Actions (MSCA) COFUND call and co-financed by Université Paris-Saclay and two non-academic partners IMAGINE OPTIC and ONERA. This is an announcement for one of the 10 PhD projects on offer. SCALING : Study of complex gradient index optics compatible with laser structuring manufacturing The objective of the thesis is to study the potential of complex GRIN optics (CGRIN) that can be produced by structuring matter with a femtosecond laser to address SWAP issues. This work will require the doctoral student to address the challenges of design, manufacturing, and metrology for CGRIN optics. Keywords: GRIN; Lasers; optical design; Photochemistry; Imaging (biomedical imaging and microscopy, super-resolution, image sensors, lensless imaging, SNOM, …); Materials (inorganic, semiconductor, organic, liquid crystal, photochromics) PI/Thesis Supervisor and team : Guillaume DRUART at the DOTA/ERIO team in GEMaC laboratory / department Every LIGHTinPARIS PhD project includes a “ 3i ” dimension (interdisciplinary, intersectoral, or international collaboration) and all fellows will benefit from secondment opportunities for 2 to 12 months at the 3i partner lab under the supervision of the "3i" co-supervisor. 3i dimension(s) for project SCALING: intersectoral at ONERA and interdisciplinary at ICMMO * The requirements for obtaining access authorisation to the DOTA laboratory are very strict as ONERA (the employer) is a research centre under the supervision of the French Ministry of the Armed Forces. APPLICATION PROCESS Guide for Applicants Applications must be submitted electronically via the LIGHTinPARIS application portal . Deadline for applications: 21 September 2026 12:00 noon Paris time (UTC + 2) Deadline to start an application (registration on portal): 15 September 2026 12:00 noon Paris time (UTC + 2) PRIOR TO SUBMITTING AN APPLICATION, Step 1. Verify and test your eligibility : https://lightinparis.eu/eligibility/ Step 2. Find a PhD project of interest https://lightinparis.eu/thesis-subjects Contact the proposed thesis supervisor to discuss the research project and scientific background and experience needed to fulfill the PhD position. YOU MAY THEN PROCEED TO, Step 3. Register on the application portal and receive link to application portal (you will complete an eligibility test first). You may prepare your application Offline. Step 4. Submit your application Detailed information and instructions are provided in the official Guide for Applicants and on the programme website ( lightinparis.eu ). EMPLOYMENT CONDITIONS Contract: Full-time, 36-month fixed-term doctoral employment contract. Employer : ONERA Salary: Competitive gross monthly salary (before taxes) for a LIGHTinPARIS PhD fellow at ONERA, for a doctoral contract, is a minimum of 2400 € (see application guide for specific employers) Allowances: Monthly travel and mobility allowance (€200) . Annual enrolment fees at the doctoral school (394 €) covered for 3 years. Additional benefits and opportunities Opportunities for professional experience (such as teaching activities) Comprehensive training in research, innovation, and transferable skills TIMELINE Call Open : Week 29 (2026) to Week 39 (2026). Publication of Call: 15 July 2026 (On website). Application portal open: 21-23 July 2026. Registration (to start an application) deadline : 15 September 2026 12:00 noon Paris time (UTC +2). No new applications can be registered after this date. Selected PhD project cannot be modified after this date Submission deadline : 21 September 2026 12:00 noon Paris time (UTC +2) Validation of application dossiers and evaluation by external experts: Week 39 - Week 42 (16/09/2026 - 13/10/2026) Online interviews : Week 44 - 45 (27 October - 6 November 2026) Notification of results : Week 46 (9 - 14 November 2026) CONTACT & INFORMATION Administrative questions: For queries about the application process, eligibility, and all administrative questions, contact application-lightinparis.isl@institutoptique.fr . Scientific questions : contact the supervisor(s) listed for each project: https://lightinparis.eu/thesis-subjects Up-to-date information on the LIGHTinPARIS website: https://lightinparis.eu Where to apply Website: https://lightinparis.eu Requirements Research Field: Physics, Education Level: Master Degree or equivalent Research Field: Engineering, Education Level: Master Degree or equivalent Skills/Qualifications PhD studies and research work require curiosity, creativity, rigour, teamwork, and organisational skills. A minimum B2 level of English is mandatory. Each PhD project has specific skills/qualifications listed - see last page of linked PDF file https://lightinparis.eu/thesis-subjects/ . Profile of PhD fellow for project SCALING pre-requisite: Theoretical knowledge in Optics pre-requisite: Experimental experience working with Lasers pre-requisite: Experimental experience in Imaging advantageous: Academic background in Materials or Photochemistry advantageous: Academic background in Applied Mathematics Specific Requirements Security Clearance Recruitment in French science and technology research facilities is subject to security clearance as required by the Department of Strategy, Security and Defence. The attribution of a PhD fellowship is contingent on the candidate obtaining the necessary security clearance. Languages: ENGLISH, Level: Good Additional Information Eligibility criteria Candidates must: Hold, or complete the requirements, for a Master’s degree or equivalent qualification by the application deadline, 21 September 2026. Candidates cannot hold a PhD degree. Must not have resided or carried out their main activity in France for more than 12 months in the three years prior to the call deadline ( MSCA mobility rule ), i.e. between 22 September 2023 and 21 September 2026 ). A good (B2) level of English is required; knowledge of French is not required. Selection process The selection includes an eligibility check , external evaluation by experts, and interviews (online) to assess the candidates’ scientific potential, motivation, and fit with the proposed research project. Shortlisted candidates will be invited for online interviews. Work Location(s) Number of offers available: 2 Company/Institute: ONERA Country: France City: Palaiseau Postal Code: 91127 Street: 6, chemin de la Vauve aux Granges, Palaiseau Contact City: Palaiseau Website: https://lightinparis.eu Street: 2 avenue Augustin Fresnel Postal Code: 91127 E-Mail: application-lightinparis.isl@institutoptique.fr