PhD Student - Scattering and Helicity Transformations in Cylindrically Symmetric Microstructures (Open)

In this project, you will study the scattering of light by microscopic structures—ranging from dielectric microspheres to arrays of nanoholes in metallic films—with an emphasis on how symmetry, helicity, and material properties shape the optical response. The work involves measuring and analyzing back- and forward-scattered light from dielectric particles, guided by Mie theory as a foundation to interpret size-dependent and index-dependent scattering signatures.

You will also investigate the transmission of light through nanohole arrays of different diameters, where the breaking of electromagnetic duality plays a central role. These measurements reveal how helicity transformation evolves with geometry and material constraints, offering insights into the fundamental mechanisms of light–matter interaction at subwavelength scales.

Building on our current results, the project includes extending scattering and helicity studies to cryogenic temperatures, where changes in electronic properties can significantly modify the optical response. Your work will involve experimental setup development, precision optical measurements, and quantitative data analysis, in close collaboration with researchers within the laboratory.

The ideal candidate has a solid background in optics, photonics, or experimental physics, with familiarity in light–matter interaction, scattering theory, and optical measurements. Experience with Mie scattering, back-/forward-scattering detection, or nanophotonic structures is highly valued. Knowledge of polarization analysis, helicity concepts, or duality-breaking phenomena is a plus.

Competence in experimental alignment, laser-based measurements, and data processing using Python or MATLAB is desirable. The candidate should demonstrate analytical thinking, attention to detail in experimental work, and the ability to contribute creatively within a collaborative research environment. Proficiency in written and spoken English is essential.

• Estimated annual gross salary: Salary is commensurate with qualifications and consistent with our pay scales
• Target start date: 2026/01/01

We provide a highly stimulating research environment, and unique professional career development opportunities.

We offer and promote a diverse and inclusive environment and welcomes applicants regardless of age, disability, gender, nationality, ethnicity, religion, sexual orientation or gender identity.

The Quantum Nanophotonics Laboratory is led by Ikerbasque Research Professor Gabriel Molina-Terriza. We are a team of scientists studying the interactions of quantum light and matter at the nanoscale. We explore single photon states, entangled photons, and squeezed states of light interacting with nanostructures.

Interested candidates should submit an updated CV and a brief statement of interest to the following application email below. 

Reference letters are welcome but not indispensable.

The reference of the specific opening to which the candidate is applying should be stated in the subject line, and the application must be received before the application deadline.

Although candidates are welcome to contact the project supervisors to know further details about the proposed research activity, please be aware that the application will be evaluated only if it is submitted directly to the email address listed below as application email.

• Reference: 2025/75
• Application deadline: 2025/12/22
• Application email: jobs.research@dipc.org

Applications received by the deadline will be evaluated by a Committee designed by the DIPC board on the basis of the following criteria:

• CV of the candidate (60%)
• Adequacy of the candidate’s scientific background to the project (20%)
• Reference letters (10%)
• Other: Diversity in gender, race, nationality, etc. (10%)

Evaluation results will be communicated to the candidates soon after. Positions will only be filled if qualified candidates are found.

The DIPC may revoke its decision if the candidate fails to join by the appointed time, in which case the position will be awarded to the candidate with the next highest score, provided it is above 50 (out of 100).

However, the selected candidate may keep the position if, in the opinion of the Selection Committee, the candidate duly justifies the reasons why he or she cannot join before the specified deadline, and as long as the project allows it.

Financiado por la Unión Europea – NextGenerationEU, a través del Plan de Recuperación, Transformación y Resiliencia (PRTR), Componente 16 (C16), actuación ‘Hub de Comunicaciones Cuánticas’