"Postdoctoral Researcher"

The Macroscopic Quantum Optics (MQO) Group and Quantum NanoOptomechanics and Forces (QNOF) Group at Aalto University jointly invites applications for an experimental postdoctoral position in quantum optomechanics with exciton-polaritons.

Research focus:

The project aims to unlock quantum regime of optomechanics with polaritons by utilizing GaAs/AlAs-based microcavities with embedded quantum wells. These unconventional optomechanical systems exhibit a unique "magic coincidence" of their phonon and polariton properties allowing for the simultaneous trapping of light and sound within the same high-Q cavity, and resulting in extremely high optomechanical interaction for the polaritons and mechanical modes in GHz range. The project is carried out in close collaboration with leading experts in semiconductor cavity optomechanics in Berlin, providing access to complementary expertise and device know-how.

We aim to cool mechanical degrees of freedom deeply into their quantum ground state and observe sideband asymmetry, using dilution refrigerator with optical access and free space interferometry. Beyond ground state cooling, the project targets bi-partite quantum states preparation and coherent control of phonons and polaritons. The successful candidate will join the MQO-QNOF team at Aalto University and build a state-of-the-art cryogenic optical experiment combining advanced interferometry, quantum optics techniques, and unique semiconductor cavity structures unavailable elsewhere.

Your role and goals

The successful candidate is expected to lead the experimental effort with a team of PhD and master’s students and collaborate closely with theorists in the group. They will collaborate with our academic and industry partners worldwide. They expected to lead preparation of research manuscripts for publications in top-tier journals, coordinate submissions, and taking the role of corresponding author. Besides the expertise in experimental quantum optics, the candidate will acquire excellent training in grant writing and research leadership provided by Aalto University and at the MQO/QNOF group level by contributing to research management and funding applications within the joint team.

Your experience and ambitions

• PhD in one of the following broader experimental areas: quantum optics/optomechanics, AMO physics, advanced laser spectroscopy and interferometry
• Strong hands-on skills in experimental research (optics lab), including automation of data acquisition and data analysis
• Proven track record of research publications in your field
• Excellent communication skills (fluency in English) and strong collaboration abilities
• Finnish language is not required
• Highly motivated to conduct fundamental research

What we offer

The MQO and QNOF teams combine advanced quantum optics methods in both discrete and continuous variables with cutting-edge solid-state systems aimed at pushing the limits of fundamental research and applications such as quantum sensing.

We are part of Finland’s major national quantum initiatives, including the InstituteQ and the Finnish Quantum Flagship (FQF), and benefit from access to world-class experimental infrastructure at Aalto’s Otaniemi campus - home to OtaNano, the largest cleanroom facility in the Nordics.

The position is full-time and initially funded for 1.5 years, with the possibility of extension. The starting salary is approximately 4130–4550 €/month, depending on experience, and includes occupational healthcare, research travel, and relocation support.

We value a healthy work–life balance and actively support personal and professional development. You will have opportunities to collaborate with leading academic and industry partners and contribute to exciting national and international research initiatives in quantum science and technology.

Join us!

Please submit your application including the attachments mentioned below as one single PDF document in English through our online recruitment system by using the link on Aalto University’s web page (click the "Apply Now” button).

1. Letter of motivation
2. CV including list of publications
3. Contact details of at least two referees

Please note: Aalto University’s employees should apply for the position via our internal HR system Workday (Internal Jobs) by using their existing Workday user account (not via the external webpage for open positions). If you are a student or visitor at Aalto University, please apply with your personal email address (not aalto.fi) via Aalto University open positions.

The deadline for applications is April 1, 2026. We will go through applications, and we may invite suitable candidates to interview already during the application period. The positions will be filled as soon as suitable candidates are identified.

For additional information, contact Prof. Anton Zasedatelev, anton.zasedatelev@aalto.fi.