Growth of the BN -- nano - structured materials using borazine decomposition by Laser Chemical Vapor Synthesis

We describe BN nanostructured materials growth by Laser Chemical Vapor Synthesis (LCVS) using the precursor borazine B$_{3}$N$_{3}$H$_{6}$. As result due to laser induced creation of the active chemical intermediates in the bulk volume, and further development of the ``dark'' chain processes in the borazine vapor with formation of the BN- nano-tubes and hydrogen gas. The phenomenological model qualitatively describing the observed phenomenon was developed and applied to explanation of the studied effects. The variation of radiation density (J/cm$^{2}$) for both harmonics and pressure is used for optimized the amount obtained.