Thermal hydrogenation of diamond surfaces studied by diffuse reflectance Fourier-transform infrared, temperature-programmed desorption and laser Raman spectroscopy

1993 ◽  
Vol 89 (11) ◽  
pp. 1783 ◽  
Author(s):  
Toshihiro Ando ◽  
Motohiko Ishii ◽  
Mutsukazu Kamo ◽  
Yoichiro Sato
Keyword(s):  
Raman Spectroscopy ◽  
Fourier Transform ◽  
Diffuse Reflectance ◽  
Fourier Transform Infrared ◽  
Temperature Programmed Desorption ◽  
Laser Raman Spectroscopy ◽  
Diamond Surfaces ◽  
Laser Raman ◽  
Temperature Programmed

Photo- and Thermo-Chromic Study of the Ethylenediamine Trimolybdate

2008 ◽  
Vol 47-50 ◽  
pp. 1193-1196
Author(s):  
De Hui Sun ◽  
Hong Jie Zhang ◽  
Ji Lin Zhang ◽  
Jiang Bo Yu
Keyword(s):  
Crystal Structure ◽  
Raman Spectroscopy ◽  
Fourier Transform ◽  
Powder Diffraction ◽  
Color Difference ◽  
Laser Raman Spectroscopy ◽  
X Ray ◽  
Laser Raman ◽  
Thermochromic Properties ◽  
The Difference

The ethylenediamine trimolybdate (ENTMo) can show unusually photochromic and thermochromic properties and there exists in the difference of chromic mechanisms, which has been proved in our previous work [1]. In this paper, X-ray powder diffraction (XRD), Fourier transform infrared (FTIR) and laser Raman spectroscopy (LRS) of the colored samples are characterized and analyzed in detail. The crystal structure, the inorganic skeleton and the microenvironment of center ions of the colored samples do not substantively change except distortion. The color difference of the photochromic and the thermochromic samples is discussed and that the difference of reduction sites result in their different chromic mechanisms is suggested.

Applications of Fourier Transform Raman Spectroscopy in an Industrial Laboratory

1989 ◽  
Vol 43 (3) ◽  
pp. 516-522 ◽  
Author(s):  
F. J. Bergin ◽  
H. F. Shurvell
Keyword(s):  
Raman Spectroscopy ◽  
Fourier Transform ◽  
Near Infrared ◽  
Laser Raman Spectroscopy ◽  
Analytical Technique ◽  
Laser Raman ◽  
Fourier Transform Raman Spectroscopy ◽  
Ft Raman Spectroscopy ◽  
Ft Ir ◽  
Fourier Transform Raman

In the past, the usefulness of laser Raman spectroscopy as an analytical technique in industrial laboratories has been greatly reduced by problems of laser-induced fluorescence. One method of circumventing this problem is to use near-infrared excitation coupled with a modified FT-IR spectrometer. In this paper, we report the results of some initial exploratory experiments which indicate that significant fluorescence rejection can be achieved. This fluorescence rejection opens up new areas of application for Raman spectroscopy. The advantages and limitations of FT-Raman spectroscopy are discussed. In addition, some initial experiments are outlined on Fourier transform Raman microscopy using a conventional microscope.

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