Search for dissertations about: "single-photon detection"

Showing result 21 - 25 of 39 swedish dissertations containing the words single-photon detection.

  2. 21. Laser spectroscopic analysis of atmospheric gases in scattering media

    Author : Mikael Sjöholm; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fjärranalys; Remote sensing; Laser spectroscop; Scattering of light; Diode lasers; acoustics; optics; Electromagnetism; optik; akustik; Elektromagnetism; Optical absorption; Nondestructive testing: optical; Interdisciplinary applications of physics; Laser technology; Atom- och molekylärfysik; Atomic and molecular physics; LIDAR remote sensing; Laserteknik;

    Abstract : Laser spectroscopic techniques for gas analysis under various influences of light scattering are explored in a wide spectral range from the ultraviolet to the infrared. The techniques rely on spectrally narrow-band light sources that are used in differential optical absorption measurements. READ MORE

  4. 22. Quantum Correlations and Temperature Fluctuations in Nanoscale Systems

    Author : Fredrik Brange; NanoLund: Centre for Nanoscience; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum transport; electronic entanglement; nanoscale thermodynamics; quantum calorimetry; Fysicumarkivet A:2019:Brange;

    Abstract : This thesis addresses two different topics related to the physics of nanoscale systems. The first topic concerns quantum correlations and entanglement between electrons in solid-state systems, with a focus on how to generate electronic orbital entanglement on a sub-decoherence time scale and how to achieve experimentally more feasible entanglement detection schemes. READ MORE

  5. 23. Quantum technologies for secure communications

    Author : Junior Ricardo Gonzales Ureta; Ana Predojević; Matthias Kleinmann; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum Optics; Quantum Information; fysik; Physics;

    Abstract : Quantum technologies promise to revolutionize a variety of fields such as metrology, cryptography or computing, among others. The resources that quantum mechanics offers allow us to design faster optimization algorithms, to provide unconditional security in communications and to measure quantities beyond the grasp of current technology. READ MORE

  6. 24. Multi-electron processes in atoms and molecules - Experimental investigations by coincidence spectroscopy

    Author : Jonas Andersson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis presents studies on multi-electron processes in atoms and molecules initiated by single-photon absorption. The experimental techniques used for these studies rely on synchrotron radiation offered at large scale user facilities, and a magnetic bottle spectrometer. READ MORE

  7. 25. Nuclear medicine imaging of breast cancer and regional lymph nodes

    Author : Rimma Danielsson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : breast neoplasm; scintimammography; diagnostic accuracy; triple diagnosis; axillary lymph node metastases;

    Abstract : The aim of this thesis was to explore the role of nuclear medicine in diagnosis of primary breast carcinoma and regional lymph node involvement. The introduction includes a review over nuclear medicine techniques currently under investigation. READ MORE