Postdoc in Integrated Quantum- and Nonlinear Photonics – DTU Electro

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Postdoc in Integrated Quantum- and Nonlinear Photonics – DTU Electro
Kgs. Lyngby, Denmark
Job Description

We are searching for an excellent, ambitious, and proactive experimentalist for a 2-year postdoc position to drive a project aimed at pushing the limits of optical nonlinear interactions into the quantum regime. Our ultimate goal is to perform quantum information processing using photonic states by fabricating ultra-small nanocavities containing highly nonlinear materials and trapping few-photon optical pulses inside [1,2].
Scientific Environment
The project is funded by the Villum Young Investigator Program Quantum Networks with Nonlinear Photonics Devices (QNET-NODES) led by Dr. Mikkel Heuck. Our team focuses on the fundamental challenges of achieving precise control over individual photons to enable large-scale quantum information processing using photonic integrated circuits (PICs). One aspect is control over the spatio-temporal degrees of freedom of photons to enable their use as mediators of interactions between long-lived solid-state quantum memories [3]. Another aspect is control over photon-photon interactions mediated by nonlinear light-matter interactions [2]. Our team is embedded in the Nanophotonics Section at DTU-Electro which provides a vibrant and highly collaborative environment. We belong to the Quantum and Laser Photonics  group and our projects often involve working closely with our local collaborators in the Quantum Light Sources -, Photonic Nanotechnology -, and Nanophotonic Devices  groups, as well as our international collaborators at MIT , CSEM , MITRE , and Sandia National Labs .
The Project in Short
The main focus is on experimental demonstrations of photon-photon interactions in nanocavities beyond the limits set by the delay-bandwidth product of passive structures [4]. This requires ultra-fast control over the effective coupling rate between a nanocavity and adjacent waveguides. We work with several material platforms including silicon [5], lithium niobate [6], and AlN/SiN [7]. The common goal is to create photonic circuits capable of ultra-low energy information processing both in the classical regime for interconnects in optical communications systems and neuromorphic computing and in the quantum regime for quantum simulation and networking. We offer substantial flexibility in tailoring projects to align with your research interests.
Responsibilities and Qualifications
Your main focus will be on experimental characterization of photonic structures in our optics labs. Depending on your interests, you will also have the opportunity to fabricate photonic chips yourself using DTU’s own state-of-the-art nanofabrication facility DTU-NanoLab . You will have the opportunity to co-supervise BSc, MSc, and PhDs and we expect you to actively engage in the team and make your expertise available to your colleagues.
We are looking for an exceptional physicist with extraordinary talents, outstanding drive, and excellent scientific achievements. We also expect you to have a strong ability to conceive new ideas, construct high-performance experimental setups, take initiative and leadership, and secure progress of the experimental work. 
Required qualifications: 

• Optical characterization of photonic devices.

Desired qualifications: 

• Fabrication of optical nano- and micro-structures such as PICs.
• Quantum optics.
• Nonlinear optics.
• Photonic integrated circuits.
• Numerical modeling.
• Python and/or Matlab programming.

Additionally, we expect that you:

• are academically curious and think deeply and creatively.
• have a strong internal drive and take responsibility for the progress and quality of your projects.
• enjoy working in a team and am excited about sharing expertise with other group members from diverse backgrounds.
• communicate well in both written and spoken English.

As a formal qualification, you must hold a PhD degree (or equivalent).
Assessment
Candidates will be assessed by Senior Researcher/Associate Professor Dr. Mikkel Heuck.
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 2 years. The starting date is according to mutual agreement.
Further information
Further information may be obtained from Dr. Mikkel Heuck, [email protected] . You can read more about career paths at DTU here  and the Department of Electrical and Photonics Engineering here .   
If you are applying from abroad, you may find useful information on working in Denmark and at DTU here .
Application
Please submit your online application no later than 5 February 2024 (23:59 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).
• CV.
• Academic Diplomas (Msc/PhD - in English).
• List of Publications.
• List of 1-2 academic references (to contact for letter of recommendations)
• A writing sample, e.g., PhD thesis (or draft), thesis chapter, first-authored publication, or similar demonstrating your work and your dissemination of it.

Applications and enclosures received after the deadline will not be considered.
All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply.
DTU Electro has more than 300 employees with competencies in electrical and photonics engineering. Research is performed within nanophotonics, lasers, quantum photonics, optical sensors, LEDs, photovoltaics, ultra-high speed optical transmission systems, bio-photonics, acoustics, power electronics, robotics, and autonomous systems.
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 mission to develop and create value using science and engineering to benefit society. That mission lives on today. DTU has 13,500 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. DTU has campuses in all parts of Denmark and in Greenland, and we collaborate with the best universities around the world.

 References

S. Krastanov, K. Jacobs, G. Gilbert, D. R. Englund, and M. Heuck, "Controlled-phase gate by dynamic coupling of photons to a two-level emitter," npj Quantum Information 8(1), 1–9 (2022).

M. Heuck, K. Jacobs, and D. R. Englund, "Controlled-Phase Gate Using Dynamically Coupled Cavities and Optical Nonlinearities," Phys. Rev. Lett. 124(16), 160501 (2020).

N. H. Wan, T.-J. Lu, K. C. Chen, M. P. Walsh, M. E. Trusheim, L. De Santis, E. A. Bersin, I. B. Harris, S. L. Mouradian, I. R. Christen, E. S. Bielejec, and D. Englund, "Large-scale integration of artificial atoms in hybrid photonic circuits," Nature 583(7815), 226–231 (2020).

Q. Xu, P. Dong, and M. Lipson, "Breaking the delay-bandwidth limit in a photonic structure," Nat. Phys. 3, 406 (2007).

M. Albrechtsen, B. Vosoughi Lahijani, R. E. Christiansen, V. T. H. Nguyen, L. N. Casses, S. E. Hansen, N. Stenger, O. Sigmund, H. Jansen, J. Mørk, and S. Stobbe, "Nanometer-scale photon confinement in topology-optimized dielectric cavities," Nat. Commun. 13(1), 6281 (2022).

H. Larocque, A. Sludds, H. Sattari, I. Christen, D. L. P. Vitullo, A. H. Ghadimi, D. Englund, and M. Heuck, "Interferometric Photonic Crystal Modulators with Lithium Niobate," in CLEO 2023 (Optica Publishing Group, 2023).

D. Heim, Y. H. Wen, M. Dong, H. Larocque, A. J. Leenheer, G. Gilbert, M. Eichenfield, M. Heuck, and D. R. Englund, "Compact Piezoelectric Photonic Crystal Modulator in a Visible-NIR 200 mm CMOS Architecture," in CLEO: Science and Innovations (Optica Publishing Group, 2022), p. STu5G–1.

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Job Info

• Job Identification 3044
• Job Category VIP B
• Posting Date 01/22/2024, 04:44 AM
• Apply Before 02/05/2024, 05:59 PM
• Locations Ørsteds Plads, Kgs. Lyngby, 2800, DK

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