Abstract We introduce a 1 × N integrated power splitter for the multimode photonics platform. The device converts an input laser beam into higher-order mode beam, which afterwards is split. core of this setup represented by non-uniform array waveguides that allows achieving arbitrary splitting. system exhibits high modal purity and tested against wavelength variations fabrication errors. possib...

Let q be a power of a prime integer p, and let X be a Hermitian variety of degree q + 1 in the n-dimensional projective space. We count the number of rational normal curves that are tangent to X at distinct q+1 points with intersection multiplicity n. This generalizes a result of B. Segre on the permutable pairs of a Hermitian curve and a smooth conic.

We present the use of a linearly down-tapered gas-filled hollow-core photonic crystal fiber in single stage, pumped with pulses from compact infrared (IR) laser source, to generate supercontinuum (SC) carrying significant spectral power deep ultraviolet (UV) [200–300 nm]. The generated SC extends near IR down <mml:mrow c...

This paper presents our participation in ImageCLEF2011, in the two tasks: ad-hoc image-based retrieval and case-based retrieval, of the medical retrieval track. We participated through a simple IR model based on three hypotheses: 1) the amount of overlap between a document and a query, 2) the descriptive power of an indexing element, and 3) the discriminative power of an indexing element. We us...