Spectra of Gas Discharges

Spectra of Neon Gas Discharge

Note : There may be a small delay as each Applet loads its element emission line file and computes the spectra...
Raising the contrast parameter brightens faint lines, but contrast shouldn't be too high or the brighter lines blur out and blend.

very low contrast, most lines are too faint
wavelength=4000-7000, lineWidth=2.5, contrast=1, continuum=0.3

low contrast, faint lines barely detectable
wavelength=4000-7000, lineWidth=2.5, contrast=5, continuum=0.3

Optimum contrast, faint lines become more visible without much blurring
wavelength=4000-7000, lineWidth=2.5, contrast=7, continuum=0.3

contrast higher, faint line brighter but blurring in the blue
wavelength=4000-7000, lineWidth=2.5, contrast=20, continuum=0.3

contrast too high, blurring in the blue
wavelength=4000-7000, lineWidth=2.5, contrast=50, continuum=0.3

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