Vacancy No. 136/2026

PhD Position on Elastocaloric Microcooling for Photonic Systems

Part-time 75%

Job description

You will work on the development of a next-generation elastocaloric microcooling system with an intelligent thermal switch for precise temperature control in photonic systems.

This includes the following tasks:

  • Design and development of an elastocaloric microcooling system based on shape memory alloy (SMA) thin films
  • Concept and development of an intelligent thermal switch for controllable heat transfer
  • Integration of the thermal switch into the elastocaloric cooling device to enhance heat dissipation and reliability
  • Rapid prototyping (optical lithography, 3D printing, laser technology)
  • Development, characterization and control of cooling demonstrator variants
  • Simulation-based design optimization

You will be embedded in the Hector Fellow Academy network and will collaborate closely with project partners from ETH Zurich and Fraunhofer IWM.

    The position offers the opportunity to pursue a part-time doctoral degree.

    Personal qualification
    • Master's degree (GPA >3,3) in Mechanical Engineering, Electrical Engineering, Microsystem Technology, or a related field
    • Knowledge of thermodynamics, heat transfer, or microsystems engineering
    • Experience in CAD, Lumped element modelling and/or FEM simulation and/or MATLAB programming, thermal characterization, mechanical testing
    • High proficiency in spoken and written English
    Organizational unit

    Institute of Microstructure Technology (IMT)

    Starting date

    01.06.2026 or later

    Salary

    Salary category 13 TV-L, depending on the fulfillment of professional and personal requirements.

    Contract duration

    Three years (with the possibility to extend for one year)

    Application up to

    19.04.2026

    Contact person in line-management

    For further information, please contact Dr. Xu email: : jingyuan.xu@kit.edu

    Application

    Please apply online using the button below for this vacancy number 136/2026 .
    Personnel Support is provided by 

    Ms Gätcke
    phone: +49 721 608-25010,

    Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

    We prefer to balance the number of employees (f/m/d). Therefore we kindly ask female applicants to apply for this job.
    Recognized severely disabled persons will be preferred if they are equally qualified.