Effective temperature of thermal radiation from non-uniform temperature distributions and nanoparticles

被引：10

作者：

Kim, Heetae ^{[1
,2
]}

Han, Myung-Soo ^{[3
]}

Perello, David ^{[4
]}

Yun, Minhee ^{[4
]}

机构：

[1] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea

[2] Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South Korea

[3] Korea Photon Technol Inst, Photon Energy Res Ctr, Kwangju 500779, South Korea

[4] Univ Pittsburgh, Dept Elect & Comp Engn, Pittsburgh, PA 15261 USA

来源：

INFRARED PHYSICS & TECHNOLOGY | 2013年 / 60卷

关键词：

Effective temperature; Non-uniform temperature distribution; Thermal radiation; Nanoparticle; Photo detector;

D O I：

10.1016/j.infrared.2013.03.003

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We study thermal radiation properties from non-uniform temperature distributions and nanoparticles, and define effective temperature. Conventionally, the temperature of a body is measured by fitting with the blackbody radiation spectrum, which assumes a uniform temperature throughout the body. We show the energy density of thermal radiation for non-uniform temperature distribution of the body and derive the effective temperature. Furthermore, the energy density of thermal radiation from nanoparticles is derived and the effective temperature of the body is shown to depend on the particle size. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：7 / 9

页数：3

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