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PhD scholarships in Semiconductor Nanostructures for Extreme Dielectric Confinement of Light

Danmarks Tekniske Universitet (DTU)

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Frist 24. maj 2021

DTU Fotonik – Department of Photonics Engineering – at the Technical University of Denmark (DTU) is seeking ambitious and talented candidates for two PhD positions within the newly established research center NanoPhoton – Center for Nanophotonics – which is dedicated to exploring new possibilities for Extreme Dielectric Confinement (EDC) of light in semiconductors to length scales much smaller than the diffraction limit. NanoPhoton addresses a range of research disciplines in collaboration between several departments at DTU, enabled by a grant from the Danish National Research Foundation.

The two PhD projects are concerned with fabrication and characterization of EDC nanostructures and their operation as photodetectors and lasers. The majority of the project will be carried out in our state-of-the-art clean room facilities and optical laboratories, where you will work with dedication in order to break the current limits of nanophotonic integration. Candidates are invited to apply for one or both of the following projects

  • III-V semiconductor nanostructures for Extreme Dielectric Confinement of Light:
  • Design, fabricate and characterize advanced Indium Phosphide EDC nanostructures with embedded layers of active quantum wells and quantum dots.

  • Silicon nanostructures for Extreme Dielectric Confinement of Light:
  • Development of a novel photodetector based on two-photon-absorption in silicon and integration with field effect transistor for next generation on-chip interconnects.

Responsibilities and qualifications

As a PhD student, you will be working closely with other members of the NanoPhoton team to design suitable EDC structures for use as lasers or photodetectors, and you will be responsible for the fabrication and subsequent characterization of the devices. This will involve:

  • Design and clean room fabrication of semiconductor nanostructures
  • Optical characterization of the fabricated structures
  • Interpretation of the recorded data in relation to theoretical models
  • Collaboration with other NanoPhoton team members

You must have a two-year master's degree (120 ECTS points) or a similar degree with an academic level equivalent to a two-year master's degree. We are looking for an ambitious PhD student with a background in electrical engineering, physics, or similar, and with experience in nanofabrication and optical characterization. Excellent written and spoken English skills are mandatory.

Approval and Enrolment

The scholarships for the PhD degree are subject to academic approval, and the candidates will be enrolled in one of the general degree programmes at DTU.

For information about our enrolment requirements and the general planning of the PhD study programme,

please see the

DTU PhD Guide.


The assessment of the applicants will be made by Professor Kresten Yvind and Professor Jesper Mørk.

We offer

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.

Salary and appointment terms

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 career paths at DTU here.

Further information

Further information may be obtained from Prof. Kresten Yvind, kryv@fotonik.dtu.dk tel.: +45 4525 6366.

You can read more about NanoPhoton at https://nanophoton.dtu.dk/ and DTU Fotonik at www.fotonik.dtu.dk/english.

If you are applying from abroad, you may find useful information on working in Denmark and at DTU at

DTU – Moving to Denmark


Application procedure
Please submit your online application no later than 24 May 2021 (Danish 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 out the online application form, and attach all your materials in English in one PDF file. The file must include:

  • A letter motivating the application (cover letter)
  • Curriculum vitae
  • Grade transcripts and BSc/MSc diploma
  • Excel sheet with translation of grades to the Danish grading system (see guidelines and Excel spreadsheet here)

If you have preferences between the two offered projects indicate that in the motivation letter.

You may apply prior to ob­tai­ning your master's degree but cannot begin before having received it.

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


The research vision of NanoPhoton - Center for Nanophotonics – is to explore the hitherto inaccessible regime of extreme dielectric confinement of light in optical cavities and to apply the associated enhanced light-matter interaction to solve fundamental outstanding challenges in chipscale information technology. To this end, we will develop the science and technology for a new class of optical nanostructures by combining fundamental electromagnetic and quantum optical theory with state-of-the-art nanofabrication and advanced experimental characterization techniques.

Technology for people
DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear vision to develop and create value using science and engineering to benefit society. That vision lives on today. DTU has 12,900 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. Our main campus is in Kgs. Lyngby north of Copenhagen and we have campuses in Roskilde and Ballerup and in Sisimiut in Greenland.

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Danmarks Tekniske Universitet (DTU)
Danmarks Tekniske Universitet (DTU)
DTU er et teknisk eliteuniversitet med international rækkevidde og standard. Vores mission er at udvikle og nyttiggøre naturvidenskab og teknisk videnskab til gavn for samfundet. 11.200 studerende uddanner sig her til fremtiden, og 6.000 medarbejdere har hver dag fokus på uddannelse, forskning, myndighedsrådgivning og innovation, som bidrager til øget vækst og velfærd.

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