Abstract
A new method to detect molecular ions selectively in gas discharges by Fourier transform emission spectroscopy is proposed. This method is by dual-beam optical subtraction. The difference spectrum between blue and red Doppler-shifted components is obtained directly thus eliminating the large background that is due to neutral precursors. © 1996 Optical Society of America.
| Original language | English |
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| Pages (from-to) | 7066-7069 |
| Number of pages | 3 |
| Journal | Applied Optics |
| Volume | 35 |
| Issue number | 36 |
| Publication status | Published - 20 Dec 1996 |