Optical observation of single layer graphene on silicon nitride substrate

Thermal transport across graphene and single layer hexagonal boron nitride

Ultra-short Optical Pulse Generation with Single-layer Graphene

Since the first report of single-layer graphene a few years ago, this material has already proven to possess a great number of interesting properties. One of these properties is its non-linear optical behavior, namely its wavelength-independent saturation of optical absorption. This saturable absorption can be utilized to induce self-amplitude modulation in a laser cavity, thus mode-locking las...

Simultaneous electrical and optical readout of graphene-coated high Q silicon nitride resonators

Laser direct growth of graphene on silicon substrate

We demonstrate laser direct growth of few layer graphene on a silicon substrate. In our study, a continuous wave laser beam was focused on a poly(methyl methacrylate) (PMMA)-coated silicon wafer to evaporate PMMA and melt the silicon wafer. Carbon atoms, decomposed from PMMA, were absorbed by the molten silicon surface, and then separated from silicon in the cooling process to form few-layer gr...

Epitaxial growth of single-domain graphene on hexagonal boron nitride.

Hexagonal boron nitride (h-BN) has recently emerged as an excellent substrate for graphene nanodevices, owing to its atomically flat surface and its potential to engineer graphene's electronic structure. Thus far, graphene/h-BN heterostructures have been obtained only through a transfer process, which introduces structural uncertainties due to the random stacking between graphene and h-BN subst...