One-dimensional photonic crystal structure enhanced external-magnetic-field-free spintronic terahertz high-field emitter.

ABSTRACT: Intense terahertz (THz) radiation in free space offers multifaceted capabilities for accelerating electron, understanding the mesoscale architecture in (bio)materials, elementary excitation and so on. Recently popularized spintronic THz emitters (STEs) with their versatility such as ultra-broadband, large-size and ease-for-integration have become one of the most promising alternative for the next generation of intense THz sources. Nevertheless, the typical W | Co  20 Fe  60 B  20 | Pt necessitates an external-magnetic-field to saturate magnetization for stable operation, limiting its scalability for achieving higher THz field with uniform distribution over larger sample areas. Here we demonstrate the methodologies of enhancing the high-field THz radiation of external-magnetic-field-free Ir

SUBMITTER: Yang Z 

PROVIDER: S-EPMC11934193 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature