| 摘要 |
Abstract. The invention relates to a security and/or valuable document having a security element, wherein the security element has a photonic 5 crystal arranged on a substrate with an orienta tion defined, in relation to a surface of the substrate, and a luminescent substance. It is characterized in that an emission wavelength lambda of the luminescent substance, and a grid 10 constant of the photonic crystal are aligned with each other and specified according to the formula lambda = m * 2 * d, wherein d is a dis tance between two lattice planes of the photonic crystal, and m is a positive integer. |
