In the recent years fundamental research involving the nanodimensional materials has received enormous momentum for
observing and understanding new types of plasmonic materials and their physical phenomena occurring in the nanoscale.
Mechanical and optical properties of these polymer based nanocomposite structures depend not only on type, dimensions
and concentration of filler material, but also on a kind of polymer matrix used. By proper selection of polymer matrix
and nanofillers, it is possible to engineer nanocomposite materials with certain favorable properties. One of the most
striking features of nanocomposite materials is that they can expose unique optical properties that are not intrinsic to
natural materials. In these researches, nanocomposite structures were formed using polymer (PMMA) as a matrix, and
silver nanoparticles as fillers. By hot embossing procedure a diffraction grating was imprinted on formed layers. The
effect of UV exposure time on nanocomposite structures morphology, optical (diffraction effectiveness, absorbance) and
mechanical properties was investigated. Results were confirmed by UV-VIS spectrometer, Laser Diffractometer, PMT-
3 and AFM. Investigations proposed new nanocomposite structures as plasmonic materials with improved optical and
mechanical properties, which may be applied for a number of technological applications: micro-electro-mechanical
devices, optical devices, various plasmonic sensors, or even in DNA nanotechnology.