title: Pressure-sensitive blackbody point radiation induced by infrared diode laser irradiation.
abstract: Ultrabroadband radiation from Yb(2)O(3) at ambient and low air pressures was investigated under the excitation of a 980 nm diode laser. The radiation was confirmed to be blackbody radiation, and it is sensitive to environmental air pressure in the way that the integrated radiation intensity decreases linearly with increasing air pressure. An ideal gas model may be employed to interpret the linear dependence. The pressure-sensitive radiation characteristic provides a potential method for noncontact measurement of air pressure with high accuracy.
authors: Department of Physics, Harbin Institute of Technology, Harbin 150001, China.
authors: Feng
authors: F
authors: Qin
authors: Hua
authors: H
authors: Zhao
authors: Yangdong
authors: Y
authors: Zheng
authors: Zhemin
authors: Z
authors: Cheng
authors: Peng
authors: P
authors: Wang
authors: Changbin
authors: C
authors: Zheng
authors: Ying
authors: Y
authors: Yu
authors: Zhiguo
authors: Z
authors: Zhang
authors: Wenwu
authors: W
authors: Cao