Measurement of the group velocity of light in sea water at the ANTARES site
► Group velocity of light measured by the ANTARES neutrino telescope in sea water. ► LEDs emit short duration flashes of different wavelengths detected by PMTs. ► Measurements show decrease of the refraction index with increasing wavelength. ► Measurements are in agreement with theoretical predictio...
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Published in | Astroparticle physics Vol. 35; no. 9; pp. 552 - 557 |
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Main Authors | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format | Journal Article Publication |
Language | English |
Published |
Elsevier B.V
01.04.2012
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | ► Group velocity of light measured by the ANTARES neutrino telescope in sea water. ► LEDs emit short duration flashes of different wavelengths detected by PMTs. ► Measurements show decrease of the refraction index with increasing wavelength. ► Measurements are in agreement with theoretical predictions.
The group velocity of light has been measured at eight different wavelengths between 385nm and 532nm in the Mediterranean Sea at a depth of about 2.2km with the ANTARES optical beacon systems. A parametrisation of the dependence of the refractive index on wavelength based on the salinity, pressure and temperature of the sea water at the ANTARES site is in good agreement with these measurements. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0927-6505 1873-2852 |
DOI: | 10.1016/j.astropartphys.2011.12.003 |