Hexagonal microlasers based on organic dyes in nanoporous crystals

Molecular sieves, such as nanoporous AlPO_4-5, can host a wide variety of laser active dyes. We embedded pyridine 2 molecules as a representative of a commercially available dye which fits into the channel pores of the host matrix. Many efficient dye molecules, such as rhodamines, do not fit into the pores. But the amount of encapsulated dyes can be increased by modifying the structure of the dyes such that they match the host templates. The resulting microlasers have properties that depend on size and shape of the microresonators, and we discuss a model for microscopic hexagonal ring resonators. In terms of pump needed to reach lasing threshold molecular sieve microlasers are comparable to VCSELs. For dyes which fit into the pores we observed a partial regeneration of photo-induced damage.Comment: 10 pages, 16 figure

Generating User Interfaces from CDISC ODM for Mobile Devices

Clinical studies are often conducted as multi-centered studies involving participants at different locations. Thus it becomes obvious that using mobile platforms and remote data entry is beneficial for such studies. When working in a distributed fashion, data exchange standards are required. Bringing these standards to the end user also requires incorporating user interface issues. Considering various device types, from desktop computer to small handheld devices raises the question how user interfaces could be derived from the data exchange standards. In this paper we consider CDISC´s Operational Data Model as a data standard and discuss its relevance in the user interface generation process. Several candidate description languages are explored and embedded into a general transformation process emphasizing especially small and mobile device characteristics. 1