Find OPUS files

OPUS offers a powerful tool, the Find OPUS Files command, in order to perform search runs on the spectra stored on your hard disk. Find OPUS Files searches a database for text strings defined by the user. Before you can use the Find OPUS Files command for the first time, you have to build this database. 

Listed in the File menu shown in Fig. 6.1 you will find all commands necessary to manage your files. Besides the basic file operations like loading, unloading, and printing you can also search OPUS files stored on the hard disk. Here, you will also find the Exit command to close OPUS. 

Chapter 3 introduces the basic functions of OPUS. Here you will find general information about the OPUS windows and the handling of the data files. Once you have worked through this chapter you will be able to use the Browser, load and unload a spectrum into the Spectrum Window, select a spectral range, and deal with a Report Window. 

OPUS differentiates between the Raman spectrum and the single channel spectrum. The single channel spectrum of the Stokes and anti-Stokes Raman scattering for a sulphur sample is shown in Fig. 4.4. Note that the abscissa here is expressed in absolute wavenumbers. Therefore, the exciting laser line appears at vl = 9394 cm and the bands at wavenumbers lower and higher than 9394 cm arise from Stokes and anti-Stokes Raman scattering, respectively. On the other hand, a standard Raman spectrum comprises the spectral range from 0 to 3500 cm. Load the file RAMAN SULPHUR and find out the difference between these two types of spectra. 

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