Sökning: "Ion Feedback"

Hittade 5 uppsatser innehållade orden Ion Feedback.

  1. 1. Optical Fiber Phase Noise Cancellation for Slow Light Crystal Cavity Locking

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Atomfysik

    Författare :Mohammad Tasnimul Haque; [2016]
    Nyckelord :Optical Fiber; Phase Noise; Slow Light; Stabilisation; Quantum Information; Quantum Optics; Optical Clocks; Physics and Astronomy;

    Sammanfattning : Recent developments in the field of optical clocks and quantum information have fueled the necessity for both fiber phase noise cancellation and laser stabilisation. The Quantum Information group at Lund University is conducting research on quantum computation experiments based on rare earth ion doped crystals and also application of slow light effects induced by spectral hole burning in these rare earth ion doped crystals. LÄS MER

  2. 2. Higher temperatures increase nutrient availability in the High Arctic, causing elevated competitive pressure and a decline in Papaver radicatum

    Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Hanna Modin; [2016]
    Nyckelord :Papaver radicatum; High Arctic; soil conditions; Zackenberg; Greenland; climate change; global warming; Arctic vegetation; Arctic plant; Arctic Poppy; active layer depth; soil moisture; competitive pressure; Earth and Environmental Sciences;

    Sammanfattning : Linking changes in the vegetation cover with factors that can moderate the effects of climate change is central to our understanding of Arctic ecosystems and their susceptibility to change. The aim of this study has been to investigate the moderating effects of soil conditions. LÄS MER

  3. 3. Laser Stabilisation Using a Slow Light Cavity

    Master-uppsats, Lunds universitet/Fysiska institutionen

    Författare :Teodor Strömberg; [2015]
    Nyckelord :Atomic Physics; Slow-Light; Rare-Earth Ion; Quantum Information; Linewidth; Laser Stabilisation; Spectral Hole Burning; Physics and Astronomy;

    Sammanfattning : In this thesis the application of slow light effects to the area of laser stabilisation is investigated. The frequency stability of lasers locked to external cavities is limited by the stability of the modes in the reference cavity. LÄS MER

  4. 4. Regulation of non-specific lipid transfer proteins in abiotically stressed Physcomitrella patens

    Kandidat-uppsats, Linköpings universitet/Molekylär genetik

    Författare :Sandra Jansson; [2011]
    Nyckelord :Abiotic stres; cuticle; non-specific lipid transfer protein; Physcomitrella patens; qRT-PCR;

    Sammanfattning : Non-specific lipid transfer proteins is a large and diverse protein family found in plants, with roles in biological systems ranging from long distance signaling to plant pathogen defense. Little is known about the roles of nsLTPs, but recent studies have cast some light on the issue, among other things proposing that they may be involved in the cutice formation on land-living liverworts, mosses and non-seedbearing plants. LÄS MER

  5. 5. Investigation of Ageing effects and Image stability in Hybrid Photon Pixel detectors at the LHCb experiment CERN

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Albert Mollén; [2010]
    Nyckelord :Ring Imaging Cherenkov detectors; Hybrid Photon Detectors; Ion Feedback; Glow light;

    Sammanfattning : The world’s largest particle accelerator, Large Hadron Collider, located at CERN outside Geneva performed its first proton-proton collisions in November 2009. One of the four main experiments is LHCb, studying rare decays of hadrons containing the beauty quark. LÄS MER