Time-Resolved 2PPE and Time-Resolved PEEM as a Probe of LSP's in Silver Nanoparticles

الملخص EN

The time-resolved two-photon photoemission technique (TR-2PPE) has been applied to study static and dynamic properties of localized surface plasmons (LSP) in silver nanoparticles.

Laterally, integrated measurements show the difference between LSP excitation and nonresonant single electron-hole pair creation.

Studies below the optical diffraction limit were performed with the detection method of time-resolved photoemission electron microscopy (TR-PEEM).

This microscopy technique with a resolution down to 40 nm enables a systematic study of retardation effects across single nanoparticles.

In addition, as will be shown in this paper, it is a highly sensitive sensor for coupling effects between nanoparticles.