June 21st to June 23rd, 2023
LIVE at the FOCUS factory,
Hünstetten, Germany

Dear PEEM and NanoESCA users, dear interested colleagues!

You are cordially invited to attend our 9th FOCUS Workshop: Photoemission Microscopy, which will be held in person at the FOCUS GmbH factory in 65510 Hünstetten, Germany from June 21st to June 23rd, 2023.

The workshop is addressed to researchers who are interested in Photoemission Microscopy techniques and capabilities like Momentum Microscopy, Imaging Spectroscopy, Orbital Tomography and Imaging Spin Filter. Especially researchers who are working with instruments like the FOCUS PEEM or the NanoESCA will profit from an extended theoretical background, the presented working practices and stimulating discussions with other participants from the community.

We are happy to announce, that the workshop is supported by leading scientist in the field of Photoemission Microscopy who will present invited talks about complementary topics:

Invited Talks

Talk 1
Seminar RoomClaus M. Schneider, Forschungszentrum Jülich, GermanyA Route to Quantum Materials: From PEEM to Momentum Microscopy
Talk 2
Seminar RoomMike Ramsey,
University of Graz, Austria
Photoemission Orbital Tomography: A renaissance of UV photoemission
Talk 3
Seminar RoomMartin Aeschlimann, Technical University of Kaiserslautern, GermanyUltrafast Spin and Electron Dynamics in Momentum Space and Time
Talk 4
Seminar RoomOlivier Renault,
CEA-Leti, France
NanoESCA in all its states: from 2D materials band structure imaging to chemical mapping of biological tissue

Abstracts of Invited Talks

Claus Schneider
Martin Aeschlimann
Michael G. Ramsey

Training & Seminar Part 1

Code Name Content
Seminar 1.1
Seminar RoomMatthias Escher,
Basic Electron Optics of Photoemission Electron Microscopy
Immersion optics, objective lens, projective lenses, aberrations, imaging
Seminar 1.2
Seminar RoomMatthias Escher,
Energy-Filtering for Photoemission Electron Microscopy
High-pass-filter, Hemispherical Analyzers, Time-of-Flight-Analyzers
Training 1.1
PEEM LabNils Weber,
Basics of PEEM lens operation
Emphasis on objective and projective lens modes
Training 1.2
NanoESCA LabTimna Kühn,
Basics of NanoESCA operation with emphasis on k-space
Field aperture, k-space stigmator and IDEA deflectors

Training & Seminar Part 2

Code Name Content
Seminar 2.1
Seminar RoomM. Patt, D. Pohlenz, M. Escher, M. Schicketanz
PEEM Periphery and Company Tour
NanoESCA/PEEM System, Hg-UV-source: bulb exchange, HIS (VUV), EFM, Company Tour
Seminar 2.2
Seminar RoomMatthias Escher,
2D Imaging Spin-Filter for Microscopy
Spin-Filter principal, characterization, operation
Training 2.1
PEEM LabNils Weber,
TOF-PEEM operation
Using Delay-Line-Detector without pulsed light source, TOF with pulsed light source, k-space and real-space operation
Training 2.2
NanoESCA LabTimna Kühn,
NanoESCA operation
Work-function mapping, k-space imaging, micro ARPES, Event Counting

Workshop Schedule

This two days workshop (Wednesday lunch time to Friday lunch time) will include food and beverages all the time, a workshop dinner on Thursday evening and a poster session with beer and pretzels on Wednesday evening. The workshop is a great place to connect to other researchers in the field, therefore we invite all participants to present their work during the poster session.

Training & Seminar Rotation

For an excellent training experience, we split the workshop in small teams of 6-7 attendees. This will ensure, that everyone has a good view during the instrument sessions and can have a chance to practice on the instrument itself.

Two teams will be in two different live instrument training session at a time, while the other two teams together will learn the theoretical background in a seminar session. After each session we rotate the teams so that everyone will have seen each course once.

For the invited talks, everyone will meet in the seminar room.

The Early Bird Registration will be open until 30th of April with a workshop registration fee of 399,00 EUR (incl. VAT). (Standard Registration with a fee of 449,00 EUR will be open between May 1st and May 21st). For the optimal learning experience at our factory, we limit the number of participants to 24 participants. The participation confirmation will be on a first come first serve basis.

To get registered to the workshop, please complete and submit the registration form on our homepage:


We will contact you as soon as possible via e-mail.

We are looking forward to seeing you in June,


Your FOCUS Team