Terahertz Faraday rotation in a magnetic liquid: High magneto-optical figure of merit and broadband operation in a ferrofluid


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SHALABY M., PECCIANTI M., Ozturk Y. , CLERICI M., AL-NAIB I., RAZZARI L., ...More

APPLIED PHYSICS LETTERS, vol.100, no.24, 2012 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 100 Issue: 24
  • Publication Date: 2012
  • Doi Number: 10.1063/1.4729132
  • Title of Journal : APPLIED PHYSICS LETTERS

Abstract

We report on the demonstration of a high figure of merit (FOM) Faraday rotation in a liquid in the terahertz (THz) regime. Using a ferrofluid, a high broadband rotation (11 mrad/mm) is experimentally demonstrated in the frequency range of 0.2-0.9 THz at room temperature. Given the low absorption of the liquid, a high magneto-optical figure of merit (5-16 rad.cm/T) is obtained. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4729132]