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Visar resultat 1 - 5 av 15 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Light propagation and photonic functionalization of semi-ordered material (transparent wood)

   Författare :Adil Baitenov; Sergei Popov; Sergey Ponomarenko; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; light scattering; scattering material; hierarchical structure; FEM model; wood modification; random lasers; dye lasers; transparent wood; adsorption; diffusive media; Optics and Photonics; Optik och fotonik;

   Sammanfattning : Investigating novel materials requires understanding their chemical and optical properties, which allows for finding their uses through functionalization by chemical modification. In this thesis, we are focusing on a material with high anisotropic scattering - transparent wood. LÄS MER

3. 2. Optical Properties of Nanoparticles in Composite Materials

   Författare :Lin Dong; Sergei Popov; Ari Friberg; Toralf Scharf; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Nanoparticles are synthetic structures with dimension from 1 to 100 nanometers and are various in types. Some favorable properties peculiar to the nanoparticles (generally owing to size effects) make them prevailing and beneficial for applications in different scientific and engineering fields. LÄS MER

4. 3. Optical Performance Monitoring in Digital Coherent Communications: Intelligent Error Vector Magnitude Estimation

   Författare :Yuchuan Fan; Oskars Ozolins; Xiaodan Pang; Aleksejs Udalcovs; Sergei Popov; Marco Ruffini; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Physics; Fysik;

   Sammanfattning : The rapid development of data-driven techniques brings us new applications, such asfifth-generation new radio (5G NR), high-definition video, Internet of things (IoT),etc., which has greatly facilitated our daily lives. LÄS MER

5. 4. Optical Functionalization of Transparent Wood Biocomposites

   Författare :Martin Höglund; Lars Berglund; Sergei Popov; Jonsson Magnus; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; transparent wood; biocomposite; optical scattering; interfaces; dye laser; organic dye; plasmonic; nanoparticle;

   Sammanfattning : Transparent wood (TW) biocomposites combines load-bearing properties with high transmittance of light. TW consists of a reinforcing wood substrate that has been infiltrated with a polymer matrix. TW can be combined with additives so that new multifunctional materials are obtained. LÄS MER

7. 5. Impairment Mitigation in High Capacity and Cost-efficient Optical Data Links

   Författare :Miguel Iglesias Olmedo; Sergei Popov; Gunnar Jacobsen; Richard Schatz; Marco Santagustina; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Phase Noise; Short range interconnects; Metro; Telecommunication; Telekommunikation;

   Sammanfattning : The work presented in this thesis fits within the broader area of fiber optics communications. This is an important area of research as it provides a breeding ground for the present and future technologies supporting the Internet. LÄS MER