Consideration on new functionality based on photo-excitation of magnetization in ultra-short time region

TL;DR

This paper discusses new functionalities enabled by photo-induced magnetization changes in ultrafast regimes, emphasizing weak excitation studies and experimental results from ultrafast spectroscopy on Co/Pd multilayers for optical integrated circuits.

Contribution

It introduces the potential for novel functionalities based on photo-excitation of magnetization in ultrashort time scales, highlighting the importance of weak excitation regimes.

Findings

Experimental results from ultrafast spectroscopy on Co/Pd multilayers.

Emphasis on weak excitation regime importance.

Potential applications in optical integrated circuits.

Abstract

New functionalities on the basis of photo-induced, non-equilibrium magnetism are discussed in the context of optical integrated circuit. Importance of studies in weak excitation regime is stated, referring experimental results obtained by ultrafast spectroscopy using Co/Pd mutilayers.