Bio-ceramics such as hydroxyapatite (HAp) are widely used materials in medical applications, especially as an interface
between implants and living tissues. There are many ways of creating structures from HAp like electrochemical assisted
deposition, biomimetic, electrophoresis, pulsed laser deposition or sol-gel processing. Our research is based on analyzing
the parameters of the sol-gel method for creating thin layers of HAp. In order to achieve this, we propose to use Optical
Coherence Tomography (OCT) for non-destructive and non-invasive evaluation. Our system works in the IR spectrum
range, which is helpful due to the wide range of nanocomposites being opaque in the VIS range. In order to use our method
we need to measure two samples, one which is a reference HAp solution and second: a similar HAp solution with
nanoparticles introduced inside. We use silver nanoparticles below 300 nm. The aim of this research is to analyze the
concentration and dispersion of nanodopants in the bio-ceramic matrix. Furthermore, the quality of the HAp coating and
deposition process repetition have been monitored. For this purpose the polarization sensitive OCT with additional
spectroscopic analysis is being investigated. Despite the other methods, which are suitable for nanocomposite materials
evaluation, the OCT with additional features seems to be one of the few which belong to the NDE/NDT group. Here we
are presenting the OCT system for evaluation of the HAp with nano-particles, as well as HAp manufacturing process.
A brief discussion on the usefulness of OCT for bio-ceramics materials examination is also being presented.