Analysis of Ge micro-cavities with in-plane tensile strains above 2.

Engineering Large In-Plane Tensile Strains in Ge Microdisks, Microrings and Racetrack Optical Cavities

Tensile Strain of Germanium Micro-Disks on Freestanding SiO2 Beams

Tensile strain is crucial to expect the direct recombination in germanium (Ge), towards monolithic light sources on silicon (Si). Freestanding beams of Ge are known to produce strong tensile strain, however, it is not trivial to construct a cavity in a freestanding structure. Here, we fabricated Ge micro-disks on freestanding oxide beams, and observed Whispering-Gallery-Modes (WGM) by photolumi...

Whispering Gallery Mode Resonances from Ge Micro-Disks on Suspended Beams

2 Ge is considered to be one of the most promising materials for realizing full monolithic integra3 tion of a light source on a silicon (Si) photonic chip. Tensile-strain is required to convert Ge into an 4 optical gain material and to reduce the pumping required for population inversion. Several meth5 ods of strain application to Ge are proposed in literature, of which the use of free-standing...

Nonlinear Finite Element Eccentric Low-Velocity Impact Analysis of Rectangular Laminated Composite Plates Subjected to In-phase/Anti-phase Biaxial Preloads

All impact analyses performed so far for the composite plates, have treated central impacts. Furthermore, investigations on influences of the in-plane biaxial compression, tension, or tension-compression preloads on various responses of the low-velocity impact, especially the indentation, have not been performed so far. In the present research, a finite element formulation is presented for resp...

Mechanical properties of SEVA / hydroxyapatite composite with to HAP different particle sizes

Hydroxyapatite is a biocompatible ceramic and reinforcement for bone implantations. SEVA/HAP composite content HAP filler with difference particle sizes were designed. Mechanical tests like tensile modulus, UTS, strain at break and biodegradation were investigated. Results illustrated much increase tensile modulus of composites content HAP nano powders ratio to micro powders. Also UTS analysis ...