Essays about: "optical electronic"
Showing result 11 - 15 of 59 essays containing the words optical electronic.
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11. Design of a 200Gbps externally modulated laser for opto-electronic integration
University essay from KTH/Tillämpad fysikAbstract : Segmented traveling wave electro-absorption modulators (TWEAMs) can provide a modulation speed above 100 Gb/s, which is needed in new optical communication networks. In the EU-project TWILIGHT, KTH continues the design work of TWEAMs in the EU-projects IPHOBAC and HECTO with the aim to design a new optical modulator to be integrated with an electronic layer. READ MORE
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12. Far-field pattern synthesis of transmitarray antennas using convex optimization techniques
University essay from KTH/Tillämpad fysikAbstract : Transmitarrays antennas (TAs) can be seen as the planar counterpart of optical lenses. They are composed of thin radiating elements (unit cells) which introduce different local phase shifts on an incident electromagnetic wave, emitted by a primary source, and re-radiate it. READ MORE
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13. A study of optical and structural properties of spin-coated V2O3 thin films on sapphire substrates
University essay from Linköpings universitet/Institutionen för fysik, kemi och biologiAbstract : Many transition metal oxides exhibit a Metal-Insulator Transition (MIT). This is an interesting phenomenon where the material undergoes a structural phase transition, and the electronic charge is redistributed in the crystal lattice. READ MORE
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14. Prototype Instrumentation for Frequency Domain – Functional Near Infrared Spectroscopy
University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Abstract : Frequency domain functional near infrared spectroscopy (FD-fNIRS) is a tissue optical measurement technique used to measure absolute haemoglobin concentrations in brain tissue. This work is intended to be the first step in the development of a wearable, low-cost FD-fNIRS device for neurofeedback applications. READ MORE
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15. Charge transfer states at polymer solar cell interfaces : Insights from atomic-scale modeling
University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)Abstract : Organic solar cells (OSCs) based on non-fullerene acceptors (NFAs) have attracted a great deal of attention in recent years due to their rapidly increasing efficiency and enormous potential. In this work, the optical and electronic properties of systems containing the very promising non-fullerene acceptor PYT have been thoroughly studied with the use of the density functional theory (DFT) and the time-dependent density functional theory (TDDFT). READ MORE