Sökning: "two-photon physics"

Visar resultat 16 - 20 av 69 avhandlingar innehållade orden two-photon physics.

  1. 16. Platforms for Quantum Information and Technology

    Författare :Fernando Redivo Cardoso; Ana Predojević; Celso J. Villas-Bôas; Luis Lorenzo Sanchez-Soto; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Quantum Computation; Quantum Information; Single Photons; Quantum Interference; Computação Quântica; Informação Quântica; Interferência Quântica; Physics; fysik;

    Sammanfattning : This work presents a collection of scientific research results in the field of quantum information. The first paper describes the mathematical properties of a particular type of state of light, called the two-mode squeezed state (TMSS). LÄS MER

  3. 17. Advanced fluorescence-based fluctuation methods for biosensing

    Författare :Elin Sandberg; Jerker Widengren; Victoria Birkedal; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

    Sammanfattning : In addition to use traditional fluorescence parameters for biological studies,the main focus of this thesis is on the monitoring of photoinduced fluorophoretransient states. These dark states, such as the triplet state, redox states andphotoisomers that are formed upon excitation, are long-lived in comparisonto the fluorescent singlet state and therefor more sensitive to the surroundingenvironment and their sensitivity are to biological relevant conditions. LÄS MER

  4. 18. A new approach to the analyses of fluorescence depolarisation experiments in the presence of electronic energy transport

    Författare :Oleg Opanasyuk; Lennart B-Å Johansson; Per-Olof Westlund; Yehudi Levine; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; electronic energy transfer; donor-donor energy migration; extended Förster theory; fluorescence depolarisation; two-photon excitation; computer simulations; genetic algorithms; fysikalisk kemi; Physical Chemistry;

    Sammanfattning : A new and general procedure is described for a detailed analysis of time-resolved fluorescence depolarisation data in the presence of electronic energy migration. An isotropic ensemble of bifluorophoric molecules (D1-R-D2) has been studied to demonstrate its utility. LÄS MER

  5. 19. Development and Application of Laser Techniques for Studying Fuel Dynamics and NO Formation in Engines

    Författare :Öivind Andersson; Förbränningsmotorer; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Motors and propulsion systems; LIF; Laser Diagnostics; Rayleigh Scattering; Fluorescence; Combustion; Pollutant; Nitric Oxide; Spray Combustion; DME; Laserteknik; Laser technology; Motorer; framdrivningssystem; Physics; Fysik; Fysicumarkivet A:2000:Andersson;

    Sammanfattning : Development and application of some laser techniques for the study of engine combustion are presented. The investigations mainly cover two aspects: fuel dynamics and formation of NO. LÄS MER

  7. 20. Resonant Laser Techniques for Combustion and Flow Diagnostics

    Författare :Rolf Fritzon; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; species; laser diagnostic techniques; temperature imaging; polarization spectroscopy; stimulated emission; DFWM; Fysik; Physics; turbulent mixing; LIF; Fysicumarkivet A:1998:Fritzon;

    Sammanfattning : This thesis presents results from two areas of research. Firstly, the resonant coherent laser techniques polarization spectroscopy (PS), degenerate four-wave mixing (DFWM) and stimulated emission (SE) have been developed in the general field of combustion diagnostics. LÄS MER