A simple approach to producing a 1×N beam splitter is demonstrated by fabricating a volumetric multiplex phase Fresnel zone plate in bulk transparent material. This comprised four layers of zone plates created in borosilicate glass by femtosecond laser direct-writing, each shifted laterally relative to the illumination axis, creating four separate beamlets. Since the power transmitted in each b...

The sustainability of any Data Warehouse System (DWS) is closely correlated with user satisfaction. Therefore, analysts, designers and developers focused more on achieving all its functionality, without considering others kinds of requirement such as dependability’s aspects. Moreover, these latter are often considered as properties of the system that will must be checked and corrected once the ...

This paper describes the development of a multimedia dictionary writing system for the Czech Sign Language dictionary, prepared in cooperation of several institutions dedicated to the sign language research and study. The presented dictionary system takes the advantage of electronic format and strongly relies on the use of multimedia evidences. The dictionary system has to deal with large amoun...

SIR JOHN FLOYER (1649-1734) may justifiably be credited with the invention of the first efficient instrument of precision to merit application in clinical practice. His own account of the development of a pulse watch for the accurate measurement of pulse rates in his patients has often been quoted,'7 and the instrument is known to have been commercially available in 1707.8 But Gunn,3 writing in...

We report on the fabrication of nanofluidic channels directly buried in silicate glass with transverse widths down to less than 50 nm using three-dimensional (3D) femtosecond laser direct writing. Using this technique, integrated micro-nanofluidic systems have been produced by simultaneously writing micro- and nanofluidic channels arranged into various 3D configurations in glass substrates. The...

In this article we point to the ways in which engineering and communication disciplines can work together to ensure the ABET criterion that encompasses effective communication is represented in engineering curricula. Drawing upon examples from several universities in North America, we offer useful portraits of writing across the curriculum approaches, interdisciplinary courses, integrated progr...

Terahertz bandwidth photonic Hilbert transformers are proposed and experimentally demonstrated. The integrated device is fabricated via a direct UV grating writing technique in a silica-on-silicon platform. The photonic Hilbert transformer operates at bandwidths of up to 2 THz (~16 nm) in the telecom band, a 10-fold greater bandwidth than any previously reported experimental approaches. Achievi...

Optical waveguide adiabatic tapers enable low-loss connections between devices with dissimilar mode profiles. Common examples are semiconductor lasers, single-mode optical fibers and planar waveguides. Planar lithographic processes can easily create tapers in the plane but out-of-plane, symmetric tapers are difficult. Three-dimensional direct-write lithography into photopolymer naturally create...

1 Teresa Larkin-Hein, American University, Department of Physics, 4400 Massachusetts Ave. NW, Washington, DC 20016 [email protected] 2 P. Kelly Joyner, American University, Department of Literature, 4400 Massachusetts Ave. NW, Washington, DC 20016 [email protected] Abstract — During the fall 2000 semester, a joint study was undertaken between the Physics and Literature Departments at Americ...

Technical writing in professional environments, such as user manual authoring, requires the use of uniform language. Nonuniform language detection is a novel task, which aims to guarantee the consistency for technical writing by detecting sentences in a document that are intended to have the same meaning within a similar context but use different words or writing style. This paper proposes an a...