We will develop a conceptually new paradigm for creating periodic landscapes of functional flexible magnetic nanostructures with modified physical properties. This goal will be achieved by applying femtosecond laser lithography to complex magnetic materials, well beyond the current state-of-the-art; we will develop ultrafast non-equilibrium thermodynamic methods for creating well-defined geometries without any additional lithography processes. The innovative character of this (patented) new technique lies in the fact that it can create adaptive, reconfigurable structures that consist of two fundamentally different counterparts. One is an amorphous material state, created by fs-laser-melting, and the other is a flexible membrane that can be arbitrary shaped at the nanoscale forming complex landscapes. State-of-the-art ultrafast optical, magneto-optical, magneto-acoustic and ferromagnetic resonance (broadband microwave) spectroscopies will be combined with atomistic molecular dynamics simulations to understand, characterize and tailor the resulting complex multifunctional structures. The long-standing technological challenge of advanced fs-laser nanofabrication (FSLN) will thus be tackled by the consortium. We will design an inexpensive, fast and efficient manufacturing process to provide ultrafast active flexible diffraction gratings and metamaterials of three-dimensional building blocks. The diffraction orders will be externally controlled by time-dependent acoustic and magnetic fields at ultrahigh frequencies. Additionally, the project will provide an accelerated pathway towards industrially mature fs-laser engineering of materials: a potentially disruptive technology in a wide range of applications, so far underused. The suitability of actively controlled photonic devices will establish the roadmap to the industrial prototyping of this technology, including the upscaling by the first European industrial fs-laser platform Manutech USD..