Search for dissertations about: "Atomic frequency comb"

Found 5 swedish dissertations containing the words Atomic frequency comb.

  1. 1. Atomic and Molecular Dynamics Probed by Intense Extreme Ultraviolet Attosecond Pulses

    Author : Jasper Peschel; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Attosecond science; Ultrafast phenomena; High-order Harmonics Generation; Free Electron Lasers; Photoionization; Photodissociation; Fysicumarkivet A:2021:Peschel;

    Abstract : This thesis work was aimed to investigate dynamical processes in atoms and molecules on ultrafast time scales initiated by absorption of light in the extreme ultraviolet (XUV) regime. In particular, photoionization and photodissociation have been studied using pump-probe techniques involving ultrafast laser pulses. READ MORE

  2. 2. Towards Efficient Quantum Memories in Rare-Earth-Ion-Doped Solids

    Author : Atia Amari; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; rare-earth-ion-doped crystals; spectral hole-burning spectroscopy; AFC; CRIB; superradiance; slow light; Quantum memories; photon echo; EIT;

    Abstract : This thesis describes experiments aimed at developing a key component in applications such as quantum networks and long-distance quantum communication systems: quantum memories. Quantum memories for light using photon-echo and coherent rephrasing techniques have been developed. The work is carried out on rare-earth-ion-doped inorganic crystals. READ MORE

  3. 3. Quantum memory development and new slow light applications in rare-earth-ion-doped crystals

    Author : Qian Li; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum memories; Slow light; Rare-earth-ion-doped crystals; Light-Matter Interaction; Fysicumarkivet A:2018:Li;

    Abstract : When doped into solid state transparent crystals, rare-earth ions can have optically excited states with milliseconds coherence time and up to six hours coherence time for hyperfine levels after being cooled down to liquid helium temperature. This long coherence property makes them unique as solid state material and attractive for quantum information applications. READ MORE

  4. 4. Efficient Quantum Memories Based on Spectral Engineering of Rare-Earth-Ion-Doped Solids

    Author : Mahmood Sabooni; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:2013:Sabooni;

    Abstract : The main aim of the present thesis is to demonstrate the efficient quantum memories for light employing coherent processes in rare-earth-ion-doped crystals. Rare-earth (RE) ions between lanthanum, with atomic number 57, and lutetium, with atomic number 71, have a partly filled 4f shell, which is spatially inside the full shells 5s, 5p, and 6s. READ MORE

  5. 5. Towards Single-Ion Detection and Single-Photon Storage in Rare-Earth-Ion-Doped Crystals

    Author : Mohammed Alqedra; NanoLund: Centre for Nanoscience; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Single-ion detection; microcavities; quantum memory; rare-earth-ion-doped crystals; Fysicumarkivet A:2022:Alqedra;

    Abstract : Solid materials doped with rare-earth ions are considered an attractive platform for quantum information applications. One of the main reasons for this is the exceptionally long optical and hyperfine coherence times of the 4fn states, due to the shielding provided by the outer lying 5s and 5p electrons. READ MORE