Turbulent transition by photon-correlation spectroscopy

Photon Correlation Spectroscopy

Two-photon standing-wave fluorescence correlation spectroscopy.

A fluorescence correlation spectroscopy experiment that combines two-photon excitation and a standing-wave interference pattern is presented. The experimental correlation function can be analyzed using a simple expression involving (1) an exponential decay with time constant tau(f), which reflects diffusion across the interference fringes, and (2) a longer-lived decay with time constant tau(ome...

Low-coherence heterodyne photon correlation spectroscopy.

Photon correlation spectroscopy (PCS) is routinely used to investigate the dynamics of colloidal particles undergoing Brownian motion. This technique is applicable to low-density colloidal suspensions in which the effects of multiple light scattering are minimal. We introduce a new low-coherence heterodyne PCS technique that allows direct investigation of colloidal suspensions of higher concent...

Microscopic Theory of Photon-Correlation Spectroscopy in Strong-Coupling Semiconductors

Dissertation zur Erlangung des Doktorgrades der Naturwissenschaften ii Zusammenfassung Inhaltsangabe und Zielrichtung der Arbeit Während viele quantenoptische Phänomene in kalten Atomgasen gut etabliert sind, wie der Einzelphotonenemission ('photon antibunching') [1], dem gequetschten Licht ('squeezed light') [2], der Bose-Einstein Kondensation [3], und der Teleportation [4], ste-hen die quante...

Two-photon Spectroscopy of Transition-metal Ions in Cubical Symmetry * +

Symmetry adaptation techniques are applied to the determination of intensities of intra-configurational two-photon transitions for transition-metal ions in cu-bical symmetry. This leads to a simple model giving the polarization dependence of intensities of two-photon (electric dipolar) transitions between Stark levels of the configuration 3d N (N = even or odd).