nanoJOBS – Careers in Nanotechnology

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Postdoc Advanced Photomixing Devices for Efficient Generation and Detection of THz Radiation
Employer: imec
Location: Leuven, Vlaams Brabant, Belgium
Employment Start Date: As soon as possible

Organization Description:

Imec is the world-leading research and innovation hub in nanoelectronics and digital technologies. The combination of our widely acclaimed leadership in microchip technology and profound software and ICT expertise is what makes us unique. By leveraging our world-class infrastructure and local and global ecosystem of partners across a multitude of industries, we create groundbreaking innovation in application domains such as healthcare, smart cities and mobility, logistics and manufacturing, and energy.
As a trusted partner for companies, start-ups and universities we bring together close to 3,500 brilliant minds from over 70 nationalities. Imec is headquartered in Leuven, Belgium and also has distributed R&D groups at a number of Flemish universities, in the Netherlands, Taiwan, USA, China, and offices in India and Japan. All of these particular traits make imec to be a top-class employer. To strengthen this position as a leading player in our field, we are looking for those passionate talents that make the difference!

Job Description:

What you will do

Sensing and imaging with terahertz radiation has recently attracted growing interest for a wide scope of applications, owing to its benefits over other wavelengths of light, such as X-ray or infrared. The non-ionizing features of THz waves allow to penetrate many materials, making the technology suitable for non-destructive testing, multi-spectral biomedical imaging, food quality inspection, pharmaceutical testing and more.

As a post-doctoral researcher, you will drive the development and optimization of waveguide-based photomixing devices for efficient generation and detection of THz radiation (0.1-10THz). The main focus will be on the implementation of waveguide coupled, ultra-fast p-i-n and uni-traveling-carrier (UTC) photodiodes, by selective-area epitaxial growth of group IV or III-V semiconductors on silicon waveguides. In-depth TCAD simulations and modeling will be carried out in order to optimize and THz generation and detection performance. Next, the most promising designs will be implemented in imec’s wafer-scale silicon photonic (SiPh) technology platform, and in-house THz characterization will be performed to evaluate device performance and calibrate the models. Subsequently, the most promising designs will be implemented in fully functional THz imager prototypes, in collaboration with other teams in imec-Belgium and imec-USA.

Your responsibilities will be:

  • Photomixer modeling and simulation (30%)
  • Photomixer design and layout (25%)
  • Photomixer characterization: electro-optical & THz (30%)
  • Reporting to internal and external stakeholders (10%)
  • Reporting to the scientific community at conferences or in scientific journals (5%)

Who you are

  • You have obtained a Ph.D. of Science in Electrical Engineering, Chemical Engineering, or Engineering Physics
  • We value your 3+ years of hands-on experience in designing, implementing and testing photomixing devices for THz. Experience with photonic integration is a plus but not required.
  • We are looking for an enthusiastic team player, yet able to independently solve complex problems with limited supervision.
  • Given the multicultural team you will work in, good knowledge of English is a must.

This postdoctoral position is funded by imec through KU Leuven. Because of the specific financing statute which targets international mobility for postdocs, only candidates who did not stay or work/study in Belgium for more than 24 months in the past 3 years can be considered for the position (short stays such as holiday, participation in conferences, etc. are not taken into account).

Job Application:

Date Posted: September 24, 2018