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Related Experiment Video

Updated: Jun 8, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

POLRADS: polarization radiance distribution measurement system.

Kenneth J Voss¹, Nordine Souaidia

¹Physics Department, University of Miami, Coral Gables, Florida 33146, USA. voss@physics.miami.edu

|October 14, 2010

Summary

Researchers developed the Polarized Radiance Distribution System (POLRADS) to measure ocean upwelling radiance polarization. This new instrument provides crucial data on the ocean

Area of Science:

Ocean optics
Remote sensing
Polarimetry

Background:

Ocean upwelling radiance can exhibit significant polarization.
Direct measurements of polarized upwelling radiance in the open ocean are scarce.
Understanding this polarization is vital for oceanographic studies.

Purpose of the Study:

To develop and validate an instrument for measuring polarized in-water upwelling spectral radiance distribution.
To address the lack of existing measurement capabilities in the open ocean.

Main Methods:

Development of the Polarized Radiance Distribution System (POLRADS) instrument.
POLRADS integrates linear polarizers with NuRADS radiance distribution camera systems.
Simultaneous imaging from three NuRADS instruments allows for calculation of Stokes parameters (I, Q, U).

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Main Results:

The POLRADS system enables simultaneous measurement of Stokes parameters (I, Q, U) for water-leaving radiance across all upwelling angles.
The instrument achieves high precision, measuring Q/I and U/I with 0.05-0.06 uncertainty.
Intensity (I) is measured with a 7-10% uncertainty.

Conclusions:

POLRADS provides a novel capability for obtaining polarized upwelling spectral radiance distribution data in the open ocean.
The instrument's accuracy supports detailed analysis of ocean optical properties.
This advancement facilitates a deeper understanding of light interaction within marine environments.