Fourier transform blackbody spectroscopy: toward thermodynamic temperature measurement

2001 ◽  
Author(s):  
Alan G. Steele ◽  
Nelson L. Rowell
Keyword(s):  
Fourier Transform ◽  
Temperature Measurement ◽  
Thermodynamic Temperature

scholarly journals Temperature-Dependent Broadening of the Ultraviolet Photoelectron Spectrum of Au(110)

Sensors ◽  
2021 ◽  
Vol 21 (17) ◽  
pp. 5969
Author(s):  
Tomonari Nishida ◽  
Ikuo Kinoshita ◽  
Juntaro Ishii
Keyword(s):  
Fourier Transform ◽  
Temperature Dependence ◽  
Photoelectron Spectroscopy ◽  
Photoelectron Spectrum ◽  
Thermodynamic Temperature ◽  
Temperature Dependent ◽  
Photoelectron Emission ◽  
The Fourier Transform ◽  
The Relationship

To determine the thermodynamic temperature of a solid surface from the electron energy distribution measured by photoelectron spectroscopy, it is necessary to accurately evaluate the energy broadening of the photoelectron spectrum and investigate its temperature dependence. Broadening functions in the photoelectron spectrum of Au(110)’s surface near the Fermi level were estimated successfully using the relationship between the Fourier transform and the convolution integral. The Fourier transform could simultaneously reduce the noise of the spectrum when the broadening function was derived. The derived function was in the form of a Gaussian, whose width depended on the thermodynamic temperature of the sample and became broader at higher temperatures. The results contribute to improve accuracy of the determination of thermodynamic temperature from the photoelectron spectrum and provide useful information on the temperature dependence of electron scattering in photoelectron emission processes.

An Infrared Accessory for Studying the Emissivity of Aluminum Surfaces

1987 ◽  
Vol 41 (4) ◽  
pp. 688-692 ◽  
Author(s):  
C. M. Conroy ◽  
J. D. Guthrie ◽  
A. J. Sharkins ◽  
B. J. Sparr ◽  
R. A. Crocombe ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Surface Roughness ◽  
Fourier Transform ◽  
Temperature Measurement ◽  
Infrared Radiation ◽  
Pure Aluminum ◽  
Emission Spectra ◽  
Surface Oxides ◽  
Infrared Spectrometer ◽  
Aluminum Surfaces

Temperature measurement of aluminum surfaces by remote sensing of infrared radiation is difficult because of the low and varying emissivity of aluminum. The variation in emissivity may be dependent on factors like surface roughness, surface oxides, temperature, or wavelength of the measurement. In order that the factors which affect the emissivity of pure aluminum might be studied, a specialized emission accessory was built to be used in conjunction with a Fourier transform infrared spectrometer. This paper describes the design of the accessory and presents emission spectra and emissivity curves demonstrating the accessory's capabilities.

A device for fluorescence temperature measurement based on fast fourier transform

2008 ◽  
Vol 4 (2) ◽  
pp. 147-149 ◽  
Author(s):  
Dong-sheng Wang ◽  
Gui-mei Wang ◽  
Wei-wei Pan ◽  
Yu-tian Wang
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Temperature Measurement
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