Institution:
University of Hamburg

Bewerbungsfrist: June 7, 2026

Research Associate for the Project “Implementing compact displacement sensors into a gravitational wave detector prototype facility” in the project Deployment and optimisation of compact local sensors for the Einstein Telescope

Zur Ausschreibung

Institution:
University of Hamburg

Bewerbungsfrist: June 7, 2026

Research Associate for the Project “Testing and optimizing linearity and absolute ranging in compact displacement sensors” in the project Deployment and optimisation of compact local sensors for the Einstein Telescope

Zur Ausschreibung

Institution:
University of Hamburg

Bewerbungsfrist: June 7, 2026

Research Associate for the Project “Modelling and design tools review & support” in the joint project Challenges in Interferometer Noise and Control for the Einstein Telescope

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Institution:
Leibniz-Institut für Kristallzüchtung

Bewerbungsfrist: July 10, 2026

Doctoral researcher for the project "High-Performance Float Zone Crystalline Silicon for Application in Einstein Telescope" to investigate process-related properties of Float Zone silicon relevant to future ET operation

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Institution:
Leibniz University Hannover

Bewerbungsfrist: July 31, 2026

Doctoral researcher for the project “Developing a modular suspension platform interferometer for the Einstein Telescope” to develop a sensor to control the motion between seismically isolated platforms for Einstein Telescope (ET).

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Institution:
Universität Siegen

Bewerbungsfrist: August 7, 2026

Postdoctoral Research Associate in Real-Time AI and FPGA-Based Newtonian-Noise Mitigation for the Einstein Telescope. Project: “FPGA-Based Building Blocks for Active Noise Mitigation”

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Institution:
Universität Siegen

Bewerbungsfrist: August 7, 2026

Research Associate / Doctoral Researcher in Machine-Learning-Based Newtonian-Noise Suppression for the Einstein Telescope. Project: “FPGA-Based Building Blocks for Active Noise Mitigation”

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Institution:
Leibniz-Institut für Kristallzüchtung (IKZ), Berlin

Bewerbungsfrist: August 10, 2026

The Einstein Telescope (ET) is a future gravitational-wave observatory currently under development in Europe. With its unprecedented sensitivity, it will explore the Universe with significantly greater depth and precision than current detectors, opening a new era of gravitational-wave astronomy. Due to its outstanding mechanical and thermal properties, crystalline silicon is considered the leading candidate material for the core components of the ET interferometer. However, existing silicon crystal-growth technologies cannot simultaneously meet all stringent requirements regarding crystal size, geometry, optical quality, and thermal and mechanical performance. Among available growth techniques, the Float Zone (FZ) method provides silicon crystals with the highest purity and structural perfection and is therefore the primary technology of interest for ET material baseline research. Our recently funded BMFTR project aims to investigate process-related properties of FZ silicon relevant to future ET operation.

As a PhD student, you will be involved in comprehensive experimental research including FZ silicon crystal growth, advanced material characterization, data analysis, and the identification of impurity-related mechanisms affecting the optical and mechanical properties of crystalline silicon. The ultimate goal of this research is to develop ultra-pure silicon substrates and fibres with properties enabling the performance requirements of cryogenic gravitational-wave detectors.

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Institution:
University Münster

Bewerbungsfrist: August 15, 2026

PhD position as part of the collaborative research project “Newtonian Noise Cancelling Headphones” for the Einstein Telescope, focused on developing machine learning-based pipelines for noise reduction, particularly for low-latency spatiotemporal seismic prediction and noise reduction.

Zur Ausschreibung

Institution:
Leibniz-Institut für Kristallzüchtung (IKZ), Berlin

Bewerbungsfrist: August 17, 2026

Silicon (Si) single crystals are indispensable in microelectronics and power electronics. They are also a leading candidate material for the test mass mirrors of the proposed Einstein Telescope (ET), a next-generation underground gravitational-wave observatory. As a partner in the ET collaboration, our research focuses on the growth of ultra-high-purity, high-quality bulk Si single crystals using advanced melt-growth techniques. The goal is to develop Si mirror substrates with exceptional optical properties that enable the higher sensitivity required for the ET interferometer. In this BMFTR-funded research project, we aim to establish a novel magnetic field assisted Czochralski (MCz) crystal growth process to produce ultra-pure, high-quality Si single crystals with extremely low optical absorption.

As a doctoral research student, you will contribute to the development and optimization of this innovative crystal growth process. Your research will involve detailed investigations of melt growth dynamics, reduction of contamination originating at the crucible–melt interface, and approaches to further improving crystal purity. You will study the influence of melt convection on impurity transport from the crucible to the growing crystal and develop advanced methodologies to achieve the stringent material quality required for the application.

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