Polariton Evaporation: The Blackbody Radiation Nature of the Low-Frequency Radiation Emitted by Radiative Polaritons to the Surrounding Space

• 作者: Brian N. Lang Giovanna Scarel Harkirat S. Mann Yosyp Schwab
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 化学
• 关键词: POLARITONS Dielectrics Thin Films Infrared Spectroscopy
• 年，卷（期）: 2014,（2）
• 页码范围: 58-65
• 页数: 8页
• 分类号: O6

摘要

Upon formation, radiative polaritons in thin oxide films or crystals emit radiation to the surrounding space. This radiation is confined in a small range of the microwave to far-infrared region of the electromagnetic spectrum, independently of the oxide chemistry. This work shows that the low-frequency radiation is blackbody radiation associated with a temperature directly related to the boson character of the radiative polaritons and to their amount. The proximity of this temperature to absolute zero Kelvin explains the confinement of the frequency. This phenomenon is named polariton evaporation.