Verfahren und Vorrichtung zur zeitaufgelösten Pump-Probe-Elektronenmikroskopie

Details

Veröffentlichungs-Nr.

EP2991097

Aktenzeichen

EP14002946

Anmeldetag

25. August 2014

Veröffentlichung

23. November 2016

Erteilung

23. November 2016

Rechtsraum

EP

IPC

H01J37/22H01J37/244H01J37/26G01N21/00G01N23/00

Abstract

A method of time-resolved pump-probe electron microscopy, comprises the steps of irradiating a sample (1) with a photonic pump pulse (2) being directed on a pump pulse path (3) from a photonic source to the sample (1), irradiating the sample (1) with an electron probe pulse (4) being directed on an electron pulse path (5) from an electron pulse source (10) to the sample (1), wherein the photonic pump pulse (2) and the electron probe pulse (4) arrive at the sample (1) with a predetermined temporal relationship relative to each other, and detecting a sample response to the electron probe pulse (4) irradiation with a detector device (20), wherein the photonic source comprises a photonic lattice structure (30) being arranged adjacent to the electron pulse path (5), and the photonic pump pulse (2) is created by an interaction of the electron probe pulse (4) with the photonic lattice structure (30). Furthermore, an electron microscopy apparatus, configured for time-resolved pump-probe electron microscopy, and a sample supply device (200) for an electron microscopy apparatus (100) are described.

Anmelder

Firma

Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.

Land

🇩🇪 Deutschland

Fachgebiete