Photoemission electron microscopy

Photoemission electron microscopy (PEEM) visualizes the local variation of electrons emitted from a surface with high spatial resolution. We employ various light sources to generate photoelectrons ranging from Hg and He discharge lamps to nanosecond and femtosecond Ti:Sapphire lasers in order to explore the properties of materials at the nanoscale. The NanoESCA microscope in our laboratory is equiped with a special double hemispherical energy filter (EF), allowing for photoelectron spectroscopy with spatial resolution below 100 nm and k-space microscopy. Examples of our current research encompass the investigation of plasmonic nanostructures and nanoparticles as well as quantum materials. 


[-] d-bands of Cu(110) recorded with the NanoESCA in k-space microscopy mode.

Momentum space microscopy with our NanoESCA instrument allows us to map the band structure of materials. An example can be seen in the animated image, showing k-space images as a function of the kinetic energy of the electrons (in this case: EF = 21.3 eV) recorded with the NanoESCA and the He discharge lamp as light source. 


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All images © TU Graz/Institute of Experimental Physics

Contact
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Institut of Experimental Physics
Graz University of Technology
Petersgasse 16
8010 Graz
Austria

Dr. Florian LACKNER

Tel.: +43 (0) 316 / 873 - 8666
Fax: +43 (0) 316 / 873 - 8655

florian.lacknernoSpam@tugraz.at

Group members
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Dr. Florian LACKNER
florian.lacknernoSpam@.tugraz.at
+43 (316) 873-8666


Prof. Wolfgang E. ERNST
wolfgang.ernstnoSpam@tugraz.at
+43 (316) 873-8140


DI Alexander SCHIFFMANN
alexander.schiffmannnoSpam@tugraz.at
+43 (316) 873-8667

 
Thomas JAUK
thomas.jauknoSpam@student.tugraz.at
+43 (316) 873-8667