Abstract

Dramatic and rapid changes in the intensity and spectrum of light under water at dusk and dawn are well known, but reports regarding the light’s polarization at these periods are sparse. Using a rapid spectropolarimeter, we examined the spatial and spectral characteristics of the underwater polarization patterns from sunrise to midday and compared them with a Rayleigh-based model for e-vector orientation and percent polarization. With the Sun near the horizon, the underwater polarization patterns were distinctive. Unlike the polarization at small solar zenith angles, the underwater polarization at large solar zenith angles cannot be predicted by simple Rayleigh scattering, most likely because of the relatively high contribution of skylight. At sunrise, the underwater polarization pattern outside of Snell’s window differed from that found during the day in percent polarization, spatial distribution, and wavelength dependence. These unique polarization characteristics may provide a polarization-sensitive animal with a distinct cue for mediating dial vertical migration performed by plankton or with another timing signal.

© 2007 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Experimental and theoretical study of skylight polarization transmitted through Snell's window of a flat water surface

Shai Sabbah, András Barta, József Gál, Gábor Horváth, and Nadav Shashar
J. Opt. Soc. Am. A 23(8) 1978-1988 (2006)

Underwater light polarization and radiance fluctuations induced by surface waves

Shai Sabbah and Nadav Shashar
Appl. Opt. 45(19) 4726-4739 (2006)

Measurements and simulations of polarization states of underwater light in clear oceanic waters

Yu You, Alberto Tonizzo, Alexander A. Gilerson, Molly E. Cummings, Parrish Brady, James M. Sullivan, Michael S. Twardowski, Heidi M. Dierssen, Samir A. Ahmed, and George W. Kattawar
Appl. Opt. 50(24) 4873-4893 (2011)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription