Terahertz surfoluminescence

SURFACE SCIENCE

卷:606

Article

Cortie, D. L.¹  Lewis, R. A.¹ 

[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia

关键词: Mechanoluminescence;    Fractoluminescence;    Triboluminescence;    Terahertz;    THz;    Surfoluminescence;   

DOI  :  10.1016/j.susc.2012.06.006

来源: Elsevier

【 摘 要 】

The cleaving of a solid to form two new surfaces may result in the emission of light. Conventional mechanoluminescence involves the transfer of charge between the two surfaces. We now demonstrate that the ultra-fast separation of charge within a newly-formed surface will lead to the emission of electromagnetic radiation. In contrast to the visible light previously observed and modeled, the intra-surface radiation contains terahertz frequencies. This new mechanism - named here surfoluminescence - introduces a new class of terahertz-frequency emitters. It also may in part explain the recent observation of terahertz emission from peeling adhesive tape. (C) 2012 Elsevier B.V. All rights reserved.

【 授权许可】

Free