SciELO - Scientific Electronic Library Online

 
vol.34 issue2Entropy-based tuning of musical instrumentsElectromagnetic momentum balance equation and the force density in material media author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Revista Brasileira de Ensino de Física

Print version ISSN 1806-1117

Abstract

DALL'AGNOL, Fernando Fuzinatto  and  ENGELSEN, Daniel den. Colors from polarizers and birefringent films. Rev. Bras. Ensino Fís. [online]. 2012, vol.34, n.2, pp. 1-7. ISSN 1806-1117.  http://dx.doi.org/10.1590/S1806-11172012000200005.

In this paper we analyze the interesting artwork of Austine W. Comarow that creates colored images from colorless birefringent films. This artwork consists of birefringent polymer films sandwiched between two polarizers, similar to a polariscope. We explain quantitatively the main features observed in Comarow's work. We derive the equations that predict the colors generated in the system as a function of the thickness and the angles between the films. We illustrate the phenomena with simple homemade devices.

Keywords : birefringence; retarders; polariscope; polarimeter; Polage Art®.

        · abstract in Portuguese     · text in English     · English ( pdf epdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License