File:Fluorescent lighting spectrum peaks labelled.gif
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Summary[edit]
DescriptionFluorescent lighting spectrum peaks labelled.gif |
English: Fluorescent lighting spectrum with emission peaks numbered. Graph of Intensity (counts) vs. Wavelength (nm) in the visible spectrum. |
Date | 20 October 2005 (upload date) |
Source |
Own work Transferred from en.wikipedia to Commons by Joonasl. |
Author | Deglr6328 at English Wikipedia |
Spectrum with peaks labelled taken with an Ocean Optics HR2000 spectrometer [1] of ambient light provided by fluorescent lamps. Spectrum taken by me. The spectrometer appears to be about ~.6 to .8 nm off judging from the location of known peaks. Interpretation of spectral peaks has been done using the NIST database of spectra for mercury [2], a paper on the photoluminescent properties of Eu:Y2O3 [3], also here [4] and here[5], and an article on fluorescent light phosphors [6]. This spectrum is not calibrated for intensity.
Peak number | Wavelength of peak (nm) | Species producing peak | Actual line location (nm) |
---|---|---|---|
1 | 405.4 | mercury | 404.656 |
2 | 436.6 | mercury | 435.833 |
3 | 487.7 | terbium from Tb3+ | ~485 to 490 |
4 | 542.4 | terbium from Tb3+ | ~543 to 544 |
5 | 546.5 | mercury | 546.074 |
6 | 577.7 | likely terbium from Tb3+ or mercury | 576.960 for Hg or ~578 for Tb |
7 | 580.2 | mercury or terbium from Tb3+ | 579.066 for Hg or ~580 for Tb |
8 | 584.0 | possibly terbium from Tb3+ or europium in Eu+3:Y2O3 | ~580 |
9 | 587.6 | likely europium in Eu+3:Y2O3 | ~587 |
10 | 593.4 | likely europium in Eu+3:Y2O3 | ~593 |
11 | 599.7 | likely europium in Eu+3:Y2O3 | ~598 |
12 | 611.6 | europium in Eu+3:Y2O3 | ~611 |
13 | 625.7 | likely terbium from Tb3+ | ~625 |
14 | 631.1 | likely europium in Eu+3:Y2O3 | ~630 |
15 | 650.8 | likely europium in Eu+3:Y2O3 | ~650 |
16 | 662.6 | likely europium in Eu+3:Y2O3 | ~661 |
17 | 687.7 | likely europium in Eu+3:Y2O3 | ~687-688 |
18 | 693.7 | likely europium in Eu+3:Y2O3 | ~693 |
19 | 707 and 709 | likely europium in Eu+3:Y2O3 | ~707 and ~709 |
20 | 712.3 | likely europium in Eu+3:Y2O3 | ~712 |
21 | 760.0 | likely argon | 758.9315 or 763.5106 (??) |
22 | 811.0 | likely argon | 811.531 |
- Note that the terbium could be either Tb3+, Ce3+:LaPO4 or Tb3+:CeMgAl11O19.
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:46, 20 October 2005 | 1,268 × 777 (18 KB) | Joonasl (talk | contribs) | From en-wiki ------ Spectrum with peaks labelled taken with an Ocean Optics spectrometer [http://www.oceanoptics.com/Products/hr4000cguvnir.asp] of ambient light provided by fluorecent lamps. Spectrum taken by me. The spectrometer appears to be about ~.6 |
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