J4 ›› 2009, Vol. 26 ›› Issue (3): 268-271.

• Spectrascopy • Previous Articles     Next Articles

Study on the measurement principle of stokes elements spectral based on intensity modulation

 SONG Zhi-Ping, HONG Jin, JIAO Yan-Li   

  1. 1 Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Hefei 230031, China;
    2 School of Physics & Material Science, Anhui University, Hefei 230039, China
  • Received:2008-12-24 Revised:2009-01-12 Published:2009-05-28 Online:2009-05-07

Abstract:

A novel method measuring the Stokes elements spectral was proposed. The main idea of the method is that a modulator consisted by two retards and one polarizer was placed before the spectrometer and let the light under test go through the modulator to the spectrometer. Measuring the power spectral from the modulator only one time and executing the demodulation algorithm, the whole Stokes elements spectral from the light under test could be obtained. The disadvantages of the old methods could be removed completely by the new method. The principle measuring the Stokes elements spectral based on the new method is deduced in detail and its feasibility is proved by the numerical simulation.

Key words: remote sensing, polarization, Stokes elements spectral, intensity modulation, numerical simulation

CLC Number: