| 摘要 |
<p>According to a first aspect, the present invention relates to a spectral filter suitable for filtering an incident wave at at least a first given central wavelength lambda0 comprising a substrate with a through orifice and a membrane of dielectric material. The membrane is suspended above the orifice and is structured to form a set of rods organized in the form of a two-dimensional pattern (33) repeated in two directions (D1, D2), the repetition of the pattern in at least one direction being periodic or quasi-periodic, with a first period (T1) less than the central wavelength lambda0.</p> |
