Method for printing a micro-scaled or nano-scaled XUV and/ or X-ray diffractive optic , including the following steps: a) providing a material with a first component being photo-sensitive and being polymerizable by two-photon-absorption, b) providing data of a desired geometrical structure of the optic and creating at least one trajectory corresponding to the data of the desired structure of the optic , c) providing a first high-intensity energy beam , in particular a laser beam, wherein the beam comprises a focus (F) having a position being adjustable to a plurality of positions (F1, F2, ..., F8) being coincident with the at least one trajectory , d) wherein at least one further high-intensity energy beam is provided, wherein the first and the at least one further high-intensity energy beam intersect each other in an intersecting volume within the material , wherein only in the intersecting volume, a sum of energies provided by the focus (F) of the first beam and a focus (F) of the at least one further high-intensity energy beam exceeds a threshold value necessary for initiation of polymerization by two-photon-absorption, e) polymerization of the material by two-photon-absorption at a first position (F1) of the focus (F), thereby creating a first voxel (V1) of the structure of the optic , f) adjusting the position of the focus (F) from the first position (F1) to a subsequent position (F2) of the focus (F) along the at least one trajectory and repeating step d) at the subsequent position (F2) of the focus (F), wherein a distance (d) between each of the positions (F1, F2,...,Fp) of the focus (F) and at least one of the rest of the positions (F1, F2,...,Fp) of the focus (F) is smaller than a mean diameter (vd) of the voxels (V1, V2; V1, V6; V2, V3; V2, V5; V3, V4; V4, V5; V4, V8; V5, V6; V6, V7) produced at these positions with respect to their dimension parallel to the distance (d). a) providing a material with a first component being photo-sensitive and being polymerizable by two-photon-absorption, b) providing data of a desired geometrical structure of the optic and creating at least one trajectory corresponding to the data of the desired structure of the optic , c) providing a first high-intensity energy beam , in particular a laser beam, wherein the beam comprises a focus (F) having a position being adjustable to a plurality of positions (F1, F2, ..., F8) being coincident with the at least one trajectory , d) wherein at least one further high-intensity energy beam is provided, wherein the first and the at least one further high-intensity energy beam intersect each other in an intersecting volume within the material , wherein only in the intersecting volume, a sum of energies provided by the focus (F) of the first beam and a focus (F) of the at least one further high-intensity energy beam exceeds a threshold value necessary for initiation of polymerization by two-photon-absorption, e) polymerization of the material by two-photon-absorption at a first position (F1) of the focus (F), thereby creating a first voxel (V1) of the structure of the optic , f) adjusting the position of the focus (F) from the first position (F1) to a subsequent position (F2) of the focus (F) along the at least one trajectory and repeating step d) at the subsequent position (F2) of the focus (F), wherein a distance (d) between each of the positions (F1, F2,...,Fp) of the focus (F) and at least one of the rest of the positions (F1, F2,...,Fp) of the focus (F) is smaller than a mean diameter (vd) of the voxels (V1, V2; V1, V6; V2, V3; V2, V5; V3, V4; V4, V5; V4, V8; V5, V6; V6, V7) produced at these positions with respect to their dimension parallel to the distance (d). <EOS>