عنوان مقاله [English]
Confinement of light at nanoscale dimensions in atomic plasmonic structures has many applications such as atomic line filters. In such coupled resonant systems, broad plasmonic resonance in contrast to narrow atomic resonance gives rise to reflection atomic spectroscopy with high resolution and very fine filter audiences. In this paper, an atomic-plasmonic cell was modeled and fabricated and the reflection from a thin gold layer in the vicinity of the rubidium vapor in Kretschmann configuration was measured by frequency modulation setup. By tuning the angle of incidence of light we could change the frequency of resonance of surface plasmon-polariton mode from the central frequency of atomic resonance lines, so the EIT to Fano resonance phenomena and vice versa have been observed. So, the EIT-like phenomena was introduced as an atomic line filter, controllable with light entrance angle.