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Technical University of Denmark

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PhD Scholarship in Electronic-Photonic Integration of Thin-Film Lithium Niobate and CMOS Chips Technical University of Denmark in Denmark

Degree Level

PhD

Field of study

Electrical Engineering

Funding

This is a three-year PhD scholarship and employment appointment at DTU. Salary and appointment terms follow the collective agreement with the Danish Confederation of Professional Associations; the advert refers applicants to DTU's salary structure for scientific staff but does not state a specific salary amount or tuition coverage.

Deadline

Nov 30, 2026

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Country

Denmark

University

Technical University of Denmark

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Keywords

Electrical Engineering
Photonic Crystal
Physics

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About this position

PhD project in electronic-photonic integration at DTU Electro, Technical University of Denmark, in Kgs. Lyngby. The project addresses the growing data-movement bottleneck in artificial-intelligence hardware by developing integrated photonic and CMOS chips for scalable information processing.

You will work with thin-film lithium niobate photonic circuits, whose electro-optic properties enable fast, low-loss modulation of light. The research focuses on photonic crystal cavities, waveguide couplers, and resonator-based modulators operating at visible and near-infrared wavelengths. Because compact resonators can drift with temperature and fabrication variations, the project develops local electronic feedback for alignment and stabilization across many devices on a chip.

Within the EPIC project, you will contribute to the co-design, fabrication, assembly, and characterization of hybrid photonic-electronic devices. Activities may include optical, thermal, and circuit simulations; fabrication in DTU Nanolab’s cleanroom; flip-chip bonding of photonic and CMOS dies; development of cavity-stabilization schemes; and high-speed electro-optic measurements of assembled systems.

The PhD researcher will work closely with Professor Per Lynggaard’s CMOS design team, Associate Professor Mikkel Heuck, other PhD students, postdocs, and senior researchers at DTU, as well as collaborators at Harvard University. The research environment combines integrated photonics, microelectronics, nanofabrication, optoelectronics, and experimental device engineering, with opportunities to present results at international conferences and publish in leading journals.

Funding details

This is a three-year PhD scholarship and employment appointment at DTU. Salary and appointment terms follow the collective agreement with the Danish Confederation of Professional Associations; the advert refers applicants to DTU's salary structure for scientific staff but does not state a specific salary amount or tuition coverage.

What's required

Applicants must have a two-year master's degree worth 120 ECTS credits, or an equivalent qualification at the same academic level; applicants may apply before completing the master's degree but cannot start before receiving it. A strong background in photonics, optics, or electronics and experimental experience in one of these areas are required, along with programming experience in Python. Experience in nanofabrication, integrated photonics, analog circuit design, or high-speed electronics is desirable. The application must include a motivation letter, curriculum vitae, and grade transcripts plus BSc/MSc diploma in English with an official grading-scale description.

How to apply

Submit the complete online application through the DTU Apply Now portal by 30 November 2026 at 23:59 Danish time. Attach one PDF in English containing the motivation letter, CV, academic transcripts, diplomas, and official grading-scale description.

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