Optical Manipulation Of A Single Clay Nanosheet Hybridized With A Porphyrin Derivative

The effect of hybridization of a clay fluorohectorite (FHT) nanosheet with a pi-conjugated organic compound, alpha,beta,gamma,delta-tetrakis(1-methylpyridinium-4-yl)porphyrin p-toluene-sulfonate (TMPyP), on its optical manipulation is investigated. Although the hybridized FHT is optically trapped essentially in the same manner as that of neat FHT, the hybridization with TMPyP allows for manipulation of FHT with lower laser intensity or a shorter period, or both. This is ascribed to the larger refractive index and polarizability of TMPyP compared with neat FHT. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement