PhD Student - Squeezed States of Light with Structured Spatial Modes (Open)

In this project, you will investigate the generation and characterization of squeezed vacuum states of light with tailored spatial structure. The work focuses on producing and analyzing squeezed states generated via parametric down-conversion in nonlinear crystals, with particular emphasis on modes carrying orbital angular momentum (such as Laguerre–Gaussian modes).

You will explore how shaping the pump beam with a spatial light modulator (SLM) enables engineering of spatially structured squeezed states, and how quantum noise redistribution manifests across different quadratures. The role includes developing and optimizing experimental setups, performing precision measurements below the shot-noise limit, and analyzing multimode quantum correlations in space, time, and frequency. You will also contribute to enhancing the stability and performance of our parametric systems and collaborate with team members working on quantum imaging and sensing applications.

As part of the Quantum Nanophotonics Laboratory, you will be embedded in a highly dynamic research environment, participate in collaborations, and disseminate your findings in workshops and conferences.

The ideal candidate has a strong background in quantum optics, photonics, or experimental physics, with hands-on experience in optical setups and nonlinear processes such as parametric down-conversion. Familiarity with squeezed-state generation, homodyne detection, spatial-mode shaping (e.g., SLMs), and orbital-angular-momentum beams is highly valued.

Additional desirable competences include experience with laser stabilization, precision noise measurements, and data analysis in Python or MATLAB. The candidate should demonstrate strong analytical thinking, creativity in experimental problem-solving, and the ability to work collaboratively in a dynamic 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: 2025/74
• 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’