Abstract
Abstract Diamond nucleation in hydrogenated amorphous carbon films containing ultradispersed copper was monitored by the measurement of IR absorption at the diamond two-phonon frequencies. Anomalously high two-phonon absorption observed in this experiments allowed us to increase the sensitivity of the method. Mechanisms of the two-phonon absorption enhancement are discussed in terms of electrodynamics of media containing nanosize inclusions of copper-doped graphite fragments. Local fields induced by electromagnetic radiation in nanodiamonds in the vicinity of copper-doped graphite fragments were shown to be responsible for the observed amplification of two-phonon absorption.
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