PhD Candidate in Time-Reflection of Subwavelength THz Waves / PhD Candidate in Time-Reflection of Subwavelength THz Waves

PhD Position in Time-Reflection of Subwavelength THz Waves

100%, Zurich, Fixed-Term

Our research group is pioneering innovative methods for the control and confinement of electromagnetic waves by utilizing time as an active design dimension. Rather than solely relying on spatial structures for manipulating wave propagation, we have embarked on developing THz time-varying photonic systems based on subwavelength waveguides. Our approach incorporates ultrafast excitations that modify the optical properties of materials on subcycle timescales. This methodology enables groundbreaking wave phenomena such as time reflection, dynamic dispersion engineering, photonic time crystals, and the dynamic Casimir effect. The project is conducted in collaboration with renowned experts at ETH Zurich, allowing regular interaction with esteemed groups led by Prof. Dikopoltsev, Prof. Scalari, Prof. Johnson, and various project partners, thereby integrating theoretical modeling, device design, and ultrafast THz experiments.

Project Background

The focus of this project is to merge advanced numerical modeling with experimental demonstrations to explore electromagnetic wave propagation in time-varying THz waveguides.

Job Description

• Develop numerical simulation frameworks for time-varying electromagnetic systems, encompassing ultrafast refractive-index modulation, wave propagation, and temporal scattering.
• Design and optimize subwavelength THz waveguides to facilitate homogeneous optical switching and efficient time interfaces.
• Investigate the emergence of time reflection, dynamic dispersion, and periodically modulated wave propagation in guided THz systems.
• Collaborate closely with experimental colleagues to validate theoretical predictions through ultrafast THz pump-probe measurements.

Profile

• A solid background in physics, photonics, electrical engineering, or a related field, along with a keen interest in both theoretical and experimental aspects.
• Experience in numerical simulations (e.g., Maxwell solvers, FDTD/FEM, coupled-mode theory, or PDE/ODE solvers) is highly advantageous.
• A strong interest in electromagnetic wave propagation, photonics, or semiconductor physics.
• Proficiency in scientific programming and data analysis using tools such as Python, MATLAB, or similar languages.
• A motivation to combine computational modeling with experimental validation in a highly collaborative environment.

Workplace

The position is based at ETH Zurich in Zurich, Switzerland, providing a vibrant and stimulating environment for research.

What We Offer

• A unique opportunity to engage in a convergence of theoretical exploration, computation, and cutting-edge ultrafast experiments at ETH Zurich.
• Collaboration with internationally recognized experts in THz photonics, ultrafast optics, and electromagnetic theory.
• The chance to lead pioneering research in the emerging field of time-varying photonics, with far-reaching implications for fundamental wave physics and future photonic technologies.

We Value Diversity and Sustainability

ETH Zurich is committed to fostering an inclusive culture that promotes equality of opportunity. We value diversity and strive to create a working and learning environment where the rights and dignity of all our staff and students are respected. To learn more about our commitment to equality and diversity, please visit our Equal Opportunities and Diversity website. Sustainability is at the core of our values and we are dedicated to working towards a climate-neutral future.

Curious? So Are We.

To join our team, apply online using the form below. Please note that only applications matching the job profile will be considered.

For further inquiries regarding the position, please contact Alexander Dikopoltsev at adikopoltsev@ethz.ch. Please refrain from sending application materials via email.

About ETH Zurich

ETH Zurich stands as one of the world’s leading universities specializing in science and technology. We are renowned for our exemplary education, pioneering fundamental research, and the effective transfer of new knowledge to society. Over 30,000 individuals from more than 120 countries consider our university a hub for independent thinking and an environment that promotes excellence. Situated in the heart of Europe while fostering connections globally, we are dedicated to collaboratively developing solutions for the pressing challenges of today and tomorrow.