PhD Scholarship in 2D Materials Based Integrated Photonics for Future Optical Interconnects

Applicants are invited to apply for a PhD position in semiconductors at Technical University of Denmark. The funds for this position are available for 3 years. The deadline for applying is October 15, 2019.

A 3-year PhD position is available in the Structured Electromagnetic Materials group at DTU Fotonik, Department of Photonic Engineering at the Technical University of Denmark. The PhD project is funded by the Danish National Research Foundation, and will be carried out in close collaboration with DTU's Centre of Excellence in Nanostructured Graphene (CNG) and with Prof. Fengnian Xia's group at Yale University, where the student will spend a few months as an external stay during the PhD study.

Silicon based optical interconnects offer a promising solution to solve the communication bottleneck faced by the electric interconnects, and intensive efforts have been devoted to developing compact integrated photonic elements including laser source and photodetector. However, due to indirect bandgap of silicon, these devices are often realized by integrating other gain materials, e.g., germanium or III-V compound semiconductor, thus leaving us a big challenge for reducing the fabrication cost and direct monolithic integration with CMOS technology. Two dimensional (2D) layered materials, such as graphene and transition-metal dichalcogenides (TMDC), have shown great potential to realize components that can easily be integrated with Si devices. The purpose of this project is to explore and develop a novel class of lasers and photodetectors relying on two-dimensional materials integrated with silicon photonic chip, which is CMOS-compatible, and suitable for chip-level integration. The project comprises explorations on two-dimensional material physics, design and fabrication of photonic chips, and characterization of the device performances, and it will be carried out in close collaboration with Yale University. Candidates should have a master’s degree in Engineering/Physics or a similar degree with an academic level equivalent to the master’s degree in Engineering/Physics. Priority will be given to students with experience in experimental nano-optics, silicon photonics and clean-room experience. The scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes of DTU. For information about the general requirements for enrolment and the general planning of the scholarship studies, please see the The assessment of the applicants will be made by Assoc. Prof. Sanshui Xiao, Assoc. Prof. Nicolas Stenger, and Assoc. Prof. Martijn Wubs. DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility. The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union. The period of employment is 3 years. You can read more about Further information may be obtained from main Ph.D. supervisor

You can read more about DTU Fotonik on Please submit your online application no later than 15 October 2019 (local time). Applications must be submitted as one pdf file containing all materials to be given consideration. To apply, please open the link “Apply online,” fill in the online application form, and attach all your materials in English in one pdf file Candidates may apply prior to obtaining their master’s degree, but cannot begin before having received it.

All interested candidates irrespective of age, gender,race, disability, religion or ethnic background are encouraged to apply.

DTU Fotonik has 210 employees with competences in optics and is one of the largest centers in the world based solely on research in photonics. Research is performed within optical sensors, lasers, LEDs, photovoltaics, ultra-high-speed optical transmission systems, bio-photonics, nano-optics and quantum photonics. DTU is a technical university providing internationally leading research, education, innovation and scientific advice. Our staff of 6,000 advance science and technology to create innovative solutions that meet the demands of society, and our 11,200 students are being educated to address the technological challenges of the future. DTU is an independent university collaborating globally with business, industry, government and public agencies.

Deadline: October 15, 2019
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