Jump Starting and Moving New Technologies to Marketplace

The highway from research in the laboratory to market success has many detours and on/off ramps that are at best confusing to inventors and the populace. Success from technology-based economic development is the outcome of the efforts of many individuals across the private and public economic development ecosystem. In this session we will highlight the issues of technology-based economic development, including legal, capital and service provider solutions that have been successfully employed to lower barriers to innovation-driven economic development. In addition to the social and economic aspects derived from the development of human capital at universities, panel members will discuss the significant contributions to job creation and economic vitality in the communities where our campuses are located and the diffusion of this economic impact across the state

Production of Single W Bosons at LEP

We report on the observation of single W boson production in a data sample collected by the L3 detector at LEP2. The signal consists of large missing energy final states with a single energetic lepton or two hadronic jets. The cross-section is measured to be $0.61^{+0.43}_{-0.33} \pm 0.05 \; \rm{pb}$ at the centre of mass energy \sqrt{s}=172 \GeV{}, consistent with the Standard Model expectation. From this measurement the following limits on the anomalous $\gamma$WW gauge couplings are derived at 95\% CL: $\rm -3.6 \Delta \kappa_\gamma 1.5$ and $\rm -3.6 \lambda_\gamma 3.6$

Comparison of buried and implanted tunnel junction as current confinement schemes for the realisation of single transverse mode large diameter (50µm) 1.55µm InP-based electrically-pumped VECSELs

International audienceWe compared buried (BTJ) and ion implanted tunnel junction (ITJ) as current confinement schemes for 1550nm ½-VCSELs. Reduced thermal resistance is obtained for BJT, but reduced current crowding is evidenced for ITJ. Singletransverse mode laser emission is obtained from large diameters devices

Fabrication and characterization of 1.55 μm single transverse mode large diameter electrically pumped VECSEL

International audienceWe report on the design, fabrication, and characterization of InP-based 1.55 μm wavelength large diameter (50 μm) electrically pumped vertical external cavity surface emitting lasers (EP-VECSELs). The hybrid device consists of a half vertical cavity surface emitting laser (1/2-VCSEL) structure assembled with a concave dielectric external mirror. The 1/2-VCSEL is monolithically grown on InP substrate and includes a semiconductor Bragg mirror and a tunnel junction for electrical injection. Buried (BTJ) and ion implanted (ITJ) tunnel junction electrical confinement schemes are compared in terms of their thermal and electrical characteristics. Lower thermal resistance values are measured for BJT, but reduced current crowding effects and uniform current injection are evidenced for ITJ. Using the ITJ technique, we demonstrate Room-Temperature (RT) continuous-wave (CW) single transverse mode laser operation from 50-μm diameter EP-VECSEL devices. We show that the experimental laser optical output versus injected current (L–I) curves are well-reproduced by a simple analytical thermal model, consistent with the thermal resistance measurements performed on the 1/2-VCSEL structure. Our results indicate that thermal heating is the main mechanism limiting the maximum CW output power of 50-μm diameter VECSELs, rather than current injection inhomogeneity

Principles for supporting school drug education.

Children and young people often find visitors to school a useful and informative part of their learning, but for visits to be successful there needs to be a shared understanding about the nature and content of the sessions. This paper is intended to set out principles that visitors and schools can consider applying to ensure better outcomes from using external support in a school's delivery of drug education