| Popis: |
In this paper, we intend to design a novel dual steering-wheel micro-structured optical fiber (DSW-MOF)-based evanescent-field sensor. The proposed dual steering-wheel structure consists of circular core and noncircular cladding region. By employing full-vectorial finite element method (FEM), the relative sensitivities of the gas sensor are found to be 97 and 92% for incident frequencies of 0.5 and 1 THz, respectively. The proposed sensor exhibits a low loss and a high sensitivity, and hence, it would highly be appropriate for identifying different types of chemical and biological gasses. |
