An Evanescent Light Wave Cannot Possess a Transverse Spin

• 作者: Chunfang Li Yunlong Zhang
• 来源期刊: 现代物理(英文)
• 学科: 物理学
• 关键词: NONEXISTENCE TRANSVERSE SPIN EVANESCENT Light Wave
• 年，卷（期）: xdwlyw_2019,（4）
• 页码范围: 459-465
• 页数: 7页
• 分类号: O43

摘要

It is pointed out that the evanescent light wave occurring at total reflection does not possess a transverse spin angular momentum as Bliokh, Bekshaev, and Nori claimed recently in (2014) Nature Communications, 5,3300. This is not only because of the nonlocality of the photon spin but also because the evanescent wave is such a state whose angular momentum cannot be separated into spin and orbital parts.