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Alexander Dikopoltsev

3 days ago

PhD Position in Time-Reflection of Subwavelength THz Waves ETH Zürich in Switzerland

Degree Level

PhD

Field of study

Electrical Engineering

Funding

Full funding available
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Country

Switzerland

University

ETH Zürich

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Keywords

Electrical Engineering
Semiconductor Physics
Terahertz Technology
Ultrafast Optics
Wave Propagation
Computational Electromagnetics

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About this position

PhD Position in Time-Reflection of Subwavelength THz Waves at ETH Zurich

This PhD project at ETH Zurich explores new ways of controlling and confining electromagnetic waves in time, with a focus on terahertz (THz) time-varying photonic systems based on subwavelength waveguides. The research investigates how ultrafast excitations can modify a material’s optical properties on subcycle timescales, enabling emerging wave phenomena such as time reflection, dynamic dispersion engineering, photonic time crystals, and the dynamic Casimir effect.

The project is jointly supervised within an ETH collaborative initiative and involves regular interaction with the groups of Prof. Dikopoltsev, Prof. Scalari, Prof. Johnson, and project partners. The work combines theoretical modeling, device design, and ultrafast THz experiments, offering a highly interdisciplinary environment at the interface of photonics, electromagnetism, and computational physics.

The successful candidate will develop numerical simulation frameworks for time-varying electromagnetic systems, model ultrafast refractive-index modulation and temporal scattering, design and optimize subwavelength THz waveguides for efficient time interfaces, and study wave phenomena in periodically modulated guided systems. The project also includes collaboration with experimental partners to validate predictions through ultrafast THz pump–probe measurements.

Applicants should have a background in physics, photonics, electrical engineering, or a related field, with experience or strong interest in numerical simulations (e.g. Maxwell solvers, FDTD/FEM, coupled-mode theory, or PDE/ODE solvers). Skills in scientific programming and data analysis with Python, MATLAB, or similar tools are desired, together with motivation to combine computation and experiment in a collaborative setting.

ETH Zurich offers a unique environment with close collaboration with internationally recognized experts in THz photonics, ultrafast optics, and electromagnetic theory, and the chance to contribute to an emerging field with fundamental and technological relevance.

How to apply: Applications must be submitted online as a single merged PDF, including a cover letter, CV, transcripts of all degrees in English, three professional reference contacts, and a publication or thesis sample. Questions about the position should be sent to Alexander Dikopoltsev at [email protected]. Email or postal applications will not be considered.

Funding details

Full funding including tuition fees and living expenses is available for this position. The scholarship covers all educational costs and provides a monthly stipend.

How to apply

Please submit your application including a cover letter, CV, academic transcripts, and contact information for two references. Applications should be sent via the online portal before the deadline.

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