We are looking for a motivated and skilled post-doctoral researcher to work on characterization of XUV optics. These optics basically consist of optical stacks of films of nanoscale thickness and come in reflective and transmissive types. The physics and chemistry of these thin film systems need to be controlled and characterized with atomic precision.

The aim of our research group is to develop the physics solutions for these tasks, such that new applications can be realized. These range from multi-layered optics engineered to show near-theoretical XUV reflectivity to highly transparent, few tens of nanometer thin membranes which are robust enough to withstand high XUV power levels. The tasks include the fine-tuning of complex optical indices by altering electronic structures, the reduction of layer roughness levels to a tenth of a nanometer, the control of thin film stresses to below a GPa, and the limitation of thermally and chemically induced diffusion processes. These processes require new types of diagnostics with adequate resolution to film thickness and high sensitivity to chemical state.

The XUV Optics Group at Twente has started a new multidisciplinary research programme on these topics. We develop forefront fundamental research, relevant to high tech applications (www.utwente.nl/xuv/). The research will take place in a state-of-the-art thin film laboratory within the MESA+ Institute for Nanotechnology at the University of Twente, in collaboration with various industrial partners.

A postdoctoral research position is open for application and development of complex hybrid metrology with the unprecedented sensitivity. At the XUV optics group we have a set of in-house developed and commercially available techniques for characterization of complex nm-scale films. Your responsibility will be the development of specific metrology solutions for thin-film structures studied in the XUV Optics Group.


Your goal is to develop a thin-film characterization platform targeted to analyze various thin-film phenomena and solve most challenging puzzles originating form growth and application of thin-film devises, including:

• Hybrid thin-film characterization schemes based on an efficient combination of various measurement techniques;

• Improvement of the accuracy of both measurements and data analysis and the uniqueness of current X-ray measurements;

• Assisting and teaching of thin-film metrology to colleagues and students in the group.

You have a PhD degree in physics, materials science, physical chemistry or engineering, related to characterization of nano-structures and nano-metrology.

• You have evidenced experience in X-ray analysis of thin films and interfaces.

• You have affinity with the development of new or extension of existing characterization techniques.

• You have confirmed experience with scientific data analysis. Advanced knowledge of statistical methods for data analysis is an advantage.

• You are an excellent team player in an enthusiastic group of scientists and engineers working on a common theme.

• You are creative, like to push boundaries, and are highly motivated to address a major science challenge in thin film metrology.

• You are fluent in English and able to collaborate intensively with industrial and academic parties in regular meetings and work visits.


You will be appointed on a fulltime position for two years, with possible extension. The university offers a dynamic ecosystem with enthusiastic colleagues in a stimulating scientific environment. The post-doc salary is between € 3.353,- and € 4.402,- gross per month depending on experience and qualifications.

The offer further involves: a holiday allowance of 8% of the gross annual salary and a year-end bonus of 8.3%, a solid pension scheme, a minimum of 29 holidays, and numerous professional and personal development programmes.


Please note, generic applications will be rejected without revision.

Your reaction should include:

• Motivation letter, emphasizing your specific interest and motivation and your experience with characterization of nanomaterials (Max 1.5 A4); 
• Detailed CV, publication list, contact details of referees, an academic transcript of B.Sc. and M.Sc. education;
• A pdf of your PhD thesis.

• Optionally you can include a recommendation letter from your PhD supervisor.

An interview and a scientific presentation will be part of the selection procedure. For more information about the position, you are encouraged to contact Dr. Igor A. Makhotkin at i.makhotkin@utwente.nl, +31 53 489 1172 or Prof. Fred Bijkerk at f.bijkerk@utwente.nl, +31 53 489 2863.

Please send your applications to the link below.


The University of Twente stands for life sciences and technology, High tech and human touch, Education and research that matter. New technology which leads change, innovation and progress in society. The University of Twente is the only campus university in the Netherlands. We have a strong focus on personal development and give scope for carrying out pioneering research. The Faculty of Science & Technology works together intensively with industrial partners and researchers in the Netherlands and abroad and conducts extensive research for external commissioning parties and funders. Research, which enjoys a high profile internationally, has been accommodated in the multidisciplinary research institutes MESA+ and MIRA. 

The XUV Optics group is embedded in the MESA+ Institute (www.mesaplus.utwente.nl), which is one of the largest nanotechnology research institutes in the world, delivering competitive and successful high-quality research. The institute employs 500 people of which 275 are PhD’s or PostDocs. With its unique NanoLab facilities the institute holds 1250 m2 of cleanroom space and state-of-the-art research equipment. 

The University of Twente is an equal opportunity employer which values diversity. We do not discriminate on race, religion, color, national origin, gender, sexual orientation, age, marital status, or disability status. Because of our diversity values we do particularly support women to apply.


TNW Faculty (Faculty of Science & Technology)

The Faculty of Science & Technology (Technische Natuurwetenschappen, TNW) engages some 700 staff members and 2000 students in education and research on the cutting edge of chemical technology, applied physics and biomedical technology. Our fields of application include sustainable energy, process technology and materials science, nanotechnology and technical medicine. As part of a people-first tech university that aims to shape society, individuals and connections, our faculty works together intensively with industrial partners and researchers in the Netherlands and abroad, and conducts extensive research for external commissioning parties and funders. Our research has a high profile both in the Netherlands and internationally and is strengthened by the many young researchers working on innovative projects with as doctoral candidates and post-docs. It has been accommodated in three multidisciplinary UT research institutes: Mesa+ Institute, TechMed Centre and Digital Society Institute.

As an employer, the TNW Faculty offers jobs that matter. We equip you as a staff member to shape new opportunities both for yourself and for our society. With our Faculty, you will be part of a leading tech university that is changing our world for the better. We offer an open, inclusive and entrepreneurial climate, in which we encourage you to make healthy choices, for example, with our flexible, customisable conditions.

University of Twente (UT)

University of Twente (UT) has entered the new decade with an ambitious, new vision, mission and strategy. As ‘the ultimate people-first university of technology’ we are rapidly expanding on our High Tech Human Touch philosophy and the unique role it affords us in society. Everything we do is aimed at maximum impact on people, society and connections through the sustainable utilisation of science and technology. We want to contribute to the development of a fair, digital and sustainable society through our open, inclusive and entrepreneurial attitude. This attitude permeates everything we do and is present in every one of UT’s departments and faculties. Building on our rich legacy in merging technical and social sciences, we focus on five distinguishing research domains: Improving healthcare by personalised technologies; Creating intelligent manufacturing systems; Shaping our world with smart materials; Engineering our digital society; and Engineering for a resilient world.POST-DOC RESEARCH POSITION “HYBRID METROLOGY FOR XUV OPTICS”


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