We designed an office cubicle that automatically mediates communications between co-workers by sensing whether users are candidate members of the same social group. The cubicle regulates visual interactions through the use of privacy glass, which can be rendered opaque or transparent upon detection of joint orientation. It regulates auditory interactions through noise-canceling headphones that ...

Transparent bubble free phosphate glasses with composition 50P2O5-10Al2O3-20CaO-(20-x)Na2O-xCeO2 (x varying from 0 to 4 mol %) have been prepared using melt quenching technique. The amorphous nature of the prepared glass samples has been confirmed from XRD spectra. The optical absorption coefficient has been determined from the UVvisible absorption spectra. The prepared glass samples have been ...

When femtosecond laser pulses are focused inside the bulk of transparent materials, the refractive-index change can be induced around the focal volume. This technique has been applied to fabricate three-dimensional photonic structures such as waveguides and couplers inside a wide variety of glasses. In this paper, we present fabrication and integration of three-dimensional waveguides in silica ...