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Micro Electro Mechanical Systems (MEMS) technology allows the miniaturization of mechanical components and has resulted in development of several types of sensors and devices designed on a micro-chip. These devices have the advantages of low cost, low power consumption, improved reliability, and can allow use in portable applications where bulk devices may not be feasible. This talk gives a short overview of MEMS, and focuses on MEMS based flow sensors and gas sensors. Both the devices are based on similar micro-heater platforms – that can heat up to >200°C with power consumption as low as 15mW and less than 50ms heat up time. Principles of operation, device construction and results will be presented.
The standard approach to build a quantum field theory is to have free fields and interactions among them as separate parts such that the interactions could always be switched off. However, in an extreme case, a composite field with tightly bound ingredient particles may not have a free particle description. Understanding how such exotic composite fields manifest in observed universe is an interesting question both for theoretical understanding and new physics explorations. A model is studied to probe effects of such exotics in presence of the Standard Model Higgs using the method of lattice simulations. The goal is to probe the model by calculating one and two-point correlation functions in different regions of the parameter space of the model.
Internet in the palm of your hands; augmented reality to connect loved ones holographically; trucks without an engine. What’s next? A nano-camera? You guessed it! There are many reasons to collect light. We can’t touch and grab a distant galaxy to take a closer look inside its blindingly bright and ludicrously bright core, nor can we see the labyrinthine nature of the microcosm with our naked eyes. We require the cooperation and manipulation of captured light to do great things. One exciting prospect of this requirement is what makes up the recently published paper in the journal Applied Physics Letters. The first author is SBASSE’s own Shahzad Akhtar Ali, a student of Dr. Ata Ul Haq from the Department of Physics.