Details

Autor(en) / Beteiligte

• Aigouy, L
• Lalanne, P
• Hugonin, J P
• Julié, G
• Mathet, V
• Mortier, M

Titel

Near-field analysis of surface waves launched at nanoslit apertures

Ist Teil von

• Physical review letters, 2007-04, Vol.98 (15), p.153902-153902, Article 153902

Ort / Verlag

United States

Erscheinungsjahr

2007

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• With the aim of analyzing the properties of the waves that are scattered by nanoslits on metallic surfaces, we provide a direct observation of the near-field in a slit-doublet experiment at optical wavelengths. We show that two distinct waves are involved: a surface plasmon polariton and another wave with a free-space character. From the recorded data, we have extracted the amplitudes and phases of these waves, their damping characteristic lengths and their relative weights as a function of the separation distance from the slit. The analysis is fully supported by a quantitative agreement with vector-theory computational results.