Actividad electromagnética de medios quirales basados en manivelas
Autor/es
Margineda Puigpelat, Jose; Martín Rodríguez, Ernesto; Núñez Trigueros, María Jose; Molina Cuberos, Gregorio José; García Collado, Ángel JoaquínFecha
2008-09Disciplina/s
Ingeniería, Industria y ConstrucciónResumen
Materials with electromagnetic activity are usually
made by spreading helices inclusions into a host medium. In
previous work, a new manufacturing technique based on the
inclusion of few three segment wire hooks (cranks) was
presented and the rotation of the polarisation angle in circular
waveguide discussed. Here we present that the random inclusion
of many cranks into a host medium produces
electromagnetically active materials. Based on a free-wave
experimental system, we have found that the transmitted wave
through the material is rotated with respect to the incident one.
First results seem to be in agreement with the typical behaviour
of chiral media at the resonant frequency.