Hannover 2013 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

Q: Fachverband Quantenoptik und Photonik

Q 35: Poster I

Q 35.98: Poster

Tuesday, March 19, 2013, 16:00–18:30, Empore Lichthof

Hybrid coherent light: modeling quantum dot superluminescent diodes — •Franziska Friedrich and Reinhold Walser — Institute for Applied Physics, TU Darmstadt, Germany

Quantum dot superluminescent diodes show unusual light characteristics. On the one hand they are spectrally broad (THz) like a thermal light source, when considering the first order field correlation function. On the other hand, they exhibit a suppressed second order intensity noise spectrum like a coherent laser. This novel state of the electromagnetic field is called hybrid coherent light [1,2,3]. It is a interesting topic for fundamental research and has high potential for applications, e.g. in medical diagnostics.
In collaboration with the experimental group of Prof. W. Elsäßer (IAP/TUD) we developed a basic model of the diode to describe the emitted light and its correlation properties.

References:
M. Blazek et al., Optics Express 17, 16 (2009)
M. Blazek, W. Elsäßer, Phys. Rev. A 84, 063840 (2011)
M. Blazek, W. Elsäßer IEEE, J. Quantum Electron. 48, 12 (2012)