Search for dissertations about: "Tunable"
Showing result 1 - 5 of 303 swedish dissertations containing the word Tunable.
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1. Tunable surfaces : using polyoxoniobates and -tantalates as molecular building blocks
Abstract : This thesis describes and explains the use of aqueous polyoxometalates (POMs), as molecular building blocks in the fabrication of tunable solid-state materials, such as thin films. Microwave irradiation in the synthesis of Nb10, Nb6 and Ta6 is a rapid and efficient alternative to conventional hydrothermal methods, while offering equal – if not greater yields – of product. READ MORE
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2. Carbon-nanofibre-based tunable photonic crystals
Abstract : Photonic crystals are materials with periodically varying refractive indices. In conventional photonic crystal design it is hard to achieve tunable structures in the visible range. That is, structures with changeable optical properties. READ MORE
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3. Tunable photonic crystals based on carbon nanofibers
Abstract : Photonic crystals are materials with periodically varying refractive indices. In conventional photonic crystal design it is hard to achieve tunable structures in the visible range, i.e. structures with changeable optical properties. READ MORE
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4. Fast-tunable resonators and quantum electrical circuits
Abstract : In this thesis, measurements on superconducting electrical circuits that exhibit quantum mechanical effects are presented. Nonlinear superconducting circuits can be regarded as artificial atoms with energy spectra that can be engineered. The artificial atoms can be used as quantum bits for quantum computation. READ MORE
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5. Towards Measurable and Tunable Security
Abstract : Many security services today only provides one security configuration at run-time, and cannot then utilize the trade-off between performance and security. In order to make use of this trade-off, tunable security services providing several security configurations that can be selected at run-time are needed. READ MORE
