Changes of the defect structure of silicon p-type crystal surface layer under the influence of plastic deformation and high temperature annealing in oxygen atmosphere were investigated by deep-level capacitance-modulation spectroscopy (DLCMS) and IR spectroscopy of molecules and atom vibrational levels. Special role of dislocations in the surface layer of silicon during the formation of its ene...

In the present work, a new vertical cavity surface emitting laser (VCSEL) structure employing combined oxide layer and single defect photonic crystal index guiding layer has been investigated for L-band optical fiber application. The basic design goal was to obtain photonic crystal VCSEL (PhC VCSEL) with the high power, high slop efficiency and low threshold that operate at 1.55-1.6μm wavelengt...

The electrical properties of the metallic interface in LaAlO3/SrTiO3 (LAO/STO) bilayers are investigated with focus on the role of cationic defects in thin film STO. Systematic growth-control of the STO thin film cation stoichiometry (defect-engineering) yields a relation between cationic defects in the STO layer and electronic properties of the bilayer-interface. Hall measurements reveal a sto...

TECHNIQUE An open Hasson entry in the left hypochondrium, at least 5cm lateral to the defect edge, and two 5mm trocars in the subxiphoid area and left iliac fossa serve to take down hernia sac adhesions and completely expose the abdominal wall defect. Another 10mm trocar is inserted in the midline just cephalad (or caudal) to the defect to receive the camera, together with a 5mm access in the r...

Defect diagnosis in random logic is currently done using the stuck-at fault model, while most defects seen in manufacturing result in bridging faults. In this work we use physical design and test failure information combined with bridging and stuck-at fault models to localize defects in random logic. We term this approach computer-aided fault to defect mapping (CAFDM). We build on top of the ex...

TECHNIQUE An open Hasson entry in the left hypochondrium, at least 5cm lateral to the defect edge, and two 5mm trocars in the subxiphoid area and left iliac fossa serve to take down hernia sac adhesions and completely expose the abdominal wall defect. Another 10mm trocar is inserted in the midline just cephalad (or caudal) to the defect to receive the camera, together with a 5mm access in the r...

Monolithic vertical cavity surface emitting lasers (VCSELs) on Si are demonstrated. The GaSb multi-quantum well active region embedded in an Al(Ga)Sb half-wave cavity spacer layer enables lasing under room-temperature optically-pumped conditions. The 13% lattice mismatch is accommodated by a spontaneously formed 2-D array of 90 misfit dislocations at the AlSb=Si interface. This growth mode prod...

A low-temperature electron spin resonance study has been carried out on large-area high-purity polycrystalline two-dimensional few monolayer (ML) 2H MoS2 films synthesized by sulfurization of Mo layers, with intent to atomically assess mobility-degrading detrimental point defects. This reveals the presence of a distinct previously unreported anisotropic defect of axial symmetry about the c-axis...

An alternative description of the layer structure of SmC* devices is used to consider the cause for wide variations in the zig-zag defect density in such devices using the same alignment layer material. In this paper, we show how the topography of the surface layer due to imperfect coating techniques and materials promotes the formation of zig-zag defects. We show that if the alignment surface ...

This study proposes a hybrid structure for a one-dimensional (1D) photonic crystal (PC) comprising a tristable cholesteric liquid crystal (CLC) as the defect layer. The CLC exhibits three optically stable states: the Grandjean planar (P), focal conic (FC), and uniform lying helix (ULH) configurations. Specifically, the reflection band of the CLC is set within the photonic bandgap (PBG) of the 1...