Optical studies of InAs/GaAs monolayer Bragg superlattices

Monolayer-Protected Cluster Superlattices: Structural, Spectroscopic, Calorimetric, and Conductivity Studies

Department of Chemistry and Regional Sophisticated Instrumentation Centre, Indian Institute of Technology, Madras 600 036, India; Department of Chemistry, Purdue University, West Lafayette, Indiana 47907; Radiochemistry Laboratory, Indira Gandhi Centre for Atomic Research, Kalpakkam, India; Central Leather Research Institute, Madras 600 020, India; and Institute of Chemistry, Academia Sinica, T...

Melting of monolayer protected cluster superlattices

Melting of crystalline solids ~superlattices! of octadecanethiol and octanethiol protected silver clusters has been studied with x-ray powder diffraction ~XRD!, differential scanning calorimetry ~DSC!, and infrared ~IR! spectroscopy. These solids have been compared with the silver thiolate layered compounds in view of their similarity in alkyl chain packing and x-ray diffraction patterns. Super...

Optical Bragg accelerators.

It is demonstrated that a Bragg waveguide consisting of a series of dielectric layers may form an excellent optical acceleration structure. Confinement of the accelerating fields is achieved, for both planar and cylindrical configurations by adjusting the first dielectric layer width. A typical structure made of silica and zirconia may support gradients of the order of 1 GV/m with an interactio...

Structural and electronic properties of germanene/MoS2 monolayer and silicene/MoS2 monolayer superlattices

Superlattice provides a new approach to enrich the class of materials with novel properties. Here, we report the structural and electronic properties of superlattices made with alternate stacking of two-dimensional hexagonal germanene (or silicene) and a MoS2 monolayer using the first principles approach. The results are compared with those of graphene/MoS2 superlattice. The distortions of the ...

Boron-doped superlattices and Bragg mirrors in diamond