In this paper we present a new type of fractal resonator to be used in the red/NIR region of the spectra. The structure presents high-transmission band in 795-825nm range. The stop band is in the 683-731 nm range. Due to the huge difference in the spectra within such a short range, the structure can be used as an efficient sensor, both in transmission as well as in reflection. Thus, a variation of only 0.09 in the refraction index will for example change the structure’s behaviour from 90% reflection to 90% transmission. Such resonances lead to a sensitivity of 780 nm/RIU. Another advantage of this resonator is the independency of the incidence angle - in the spectral re-gion of interest; the incidence angle has very little influence over the response.
|Title of host publication||Metamaterials '2011: The Fifth International Congress on Advanced Electromagnetic Materials in Microwaves and Optics|
|Publication status||Published - 2011|
|Event||5th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics - Barcelona, Spain|
Duration: 10 Oct 2011 → 15 Oct 2011
Conference number: 5
|Conference||5th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics|
|Period||10/10/2011 → 15/10/2011|