Diode-laser derivative spectroscopy without lock-in amplifier |
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| Authors: | A K Chernyshov E A Chernyshova |
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| Institution: | 1.Samara Branch of the Lebedev Physical Institute,Russian Academy of Sciences,Samara,Russia |
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| Abstract: | A derivative spectroscopy allowing the spectrum to be observed in real time at the analogue oscilloscope is developed. A differentiating
amplifier is used instead of a lock-in amplifier to obtain the signal proportional to the derivative of the absorption line
profile. This approach allows a region of the spectrum to be rapidly identified and the diode-laser spectrometer to be tuned
to the strongest absorption line. |
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