Search for dissertations about: "dbr"
Showing result 16 - 20 of 22 swedish dissertations containing the word dbr.
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16. Ultraviolet vertical-cavity surface-emitting lasers and vertical microcavities for blue lasers
Abstract : III-nitride materials are used for ultraviolet (UV) and visible light emitters. One such light source is the vertical-cavity surface-emitting laser (VCSEL) that could find applications within areas ranging from sterilization and medical treatment to car headlights and augmented reality displays. READ MORE
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17. Tailoring the Optical Response of III-V Nanowire Arrays
Abstract : Semiconductor nanowires show a great deal of promise for applications in a wide range of important fields, including photovoltaics, biomedicine, and information technology. Developing these exciting applications is strongly dependent on understanding the fundamental properties of nanowires, such as their optical resonances and absorption spectra. READ MORE
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18. New Spaces for Language Learning. A study of student interaction in media production in English
Abstract : The thesis project takes as its starting point an interest in foreign language learning as a social and cultural activity. Globalisation and digital media have contributed to changed conditions, especially for learning English. These changing conditions offer opportunities and new arenas as well as a challenge for current educational practice. READ MORE
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19. On designing educational portals for self-management of type 2 diabetes : lessons learnt from an Iranian context
Abstract : Introduction: The prevalence of type 2 diabetes (T2D) has been rising steadily and more rapidly in middle- and low-income countries. It is estimated that, by 2040, about 640 million people will have diabetes. Web-based technology and mobile phones have provided different services for patients with diabetes (e.g. READ MORE
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20. Long-wavelength vertical-cavity lasers based on InP/GaInAsp bragg reflectors
Abstract : Vertical-cavity surface-emitting lasers (VCSELs) operatingat long wavelength (1.3-1.55µm) are of great interest asinexpensive, high-performance light sources for opticalcommunication systems. READ MORE