| Autor: |
Hennig, Georg, Brittenham, Gary M., Sroka, Ronald, Kniebühler, Gesa, Vogeser, Michael, Stepp, Herbert |
| Předmět: |
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| Zdroj: |
Review of Scientific Instruments; Apr2013, Vol. 84 Issue 4, p043113-043113-7, 1p, 1 Diagram, 1 Chart, 6 Graphs |
| Abstrakt: |
An optical filter unit is demonstrated, which uses two successively arranged tunable thin-film optical band-pass filters and allows for simultaneous adjustment of the central wavelength in the spectral range 522-555 nm and of the spectral bandwidth in the range 3-16 nm with a wavelength switching time of 8 ms/nm. Different spectral filter combinations can cover the complete visible spectral range. The transmitted intensity was found to decrease only linearly with the spectral bandwidth for bandwidths >6 nm, allowing a high maximum transmission efficiency of >75%. The image of a fiber bundle was spectrally filtered and analyzed in terms of position-dependency of the transmitted bandwidth and central wavelength. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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