Blue-shifting of coherent plasmon radiation due to Landau damping
Restricting the wave vector of coherent plasmons excited by ultrashort laser pulses results in a frequency blue-shift of the emitted THz radiation, consistent with the onset of Landau damping.
Coherent plasmons in InSb
We study coherent plasmons in the narrow-gap semiconductor InSb by measuring the far-infrared electromagnetic radiation they emit. These collective oscillations are excited with ultrashort, near-infrared laser pulses having photon energy far above the semiconductor band gap. Coherent plasmon behavior is characterized as a function of temperature, doping density, optically injected carrier density, and spatial confinement.
The problems of interprofessional healthcare practice in hospitals.
This article outlines the problems of interprofessional practice in the hospital setting. It examines the difficulties associated with competing ideologies and aims, inequalities in power relations, communication and role confusion and overlap. Within the hospital setting such problems often arise although the roots of the problem may go unacknowledged. The ways in which the problems occur in the hospital setting are considered, as is the underlying cause of such problems. Case studies will be used to analyse how the problems arise and ways in which they might be addressed.