We report the design, growth, fabrication, and characterization of GaAs-based high-speed p – i – n photodiodes operating at 1.55 mm. A low-temperature-grown GaAs ~LT-GaAs! layer was used as the absorption layer and the photoresponse was selectively enhanced at 1.55 mm using a resonant-cavity-detector structure. The bottom mirror of the resonant cavity was formed by a highly reflecting 15-pair G...

We discuss a new technology that promises large inexpensive mirrors. We argue that it should be possible to tilt a rotating viscous liquid by perhaps as much as a few tens of degrees. The tilted liquid parabolic surface is used as the support for a thin reflecting metallic film. We demonstrate two critical steps: that a viscous liquid mirror can be tilted and that an optical quality metallic fi...

Reflection allows programmers to inspect and modify the structural and runtime properties of a software system. Traditionally, the architecture of a reflective system has been a monolithic part of the runtime system, featuring a fixed semantics. Mirror-based reflective architectures decouple the base-level entities from their meta-level counterparts. In this work, we explore ChromaKey, a design...

We compute the effect of quantum mechanical backreaction on the spectrum of radiation in a dynamical moving mirror model, mimicing the effect of a gravitational collapse geometry. Our method is based on the use of a combined WKB and saddle-point approximation to implement energy conservation in the calculation of the Bogolyubov coefficients, in which we assume that the mirror particle has finit...

Folk Song Lab uses interactive group sessions to explore different ways by which improvisation stimulates an attitude towards the song it is understood as a cognitive framework that recreated singer in performance moment. It takes its point of origin certain conceptual qualities found traditional folk and improvisation, stimulated using flow-inducing concepts (Csikszentmihalyi 1990. Flow: The P...

We consider a system of two cavities separated by reflecting boundary finite mass that is free to move and bounded its equilibrium position harmonic potential. This yields an effective mirror-field interaction, as well interaction between the field modes mediated movable boundary. Two massless scalar fields are defined in each cavity. second-order interacting ground state system, contains virtu...

“realism” is a critical term which in its specific sense refers to a literary movement in mid-nineteenth century and in its general sense designates a style of writing that has continued into the contemporary period. the school principal, a short novel by jalal ale-ahmad, is a characteristic example of realism in its general sense in which the author attempts to represent people and social cond...

Visuo-tactile integration occurs in a privileged way in peripersonal space, namely when visual and tactile stimuli are in spatial proximity. Here, we investigated whether crossmodal spatial effects (i.e. stronger crossmodal interactions for spatially congruent compared to incongruent visual and tactile stimuli) are also present when visual stimuli presented near the body are indirectly viewed i...

This work introduces a new and simple method for adjusting the gain of current mirror. The major advantage of the proposed architecture is that, unlike the conventional variable gain current mirror, it does not need the change of the biasing current to adjust current gain. Therefore, the power dissipation remains constant in all of the gain settings. In addition, the proposed variable gain curr...