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Welcome
Optical processes are the heart of all photonic devices. The main thrust of our research is then a profound understanding of the interaction of light, with semiconductors in general and with semiconductor nanostructures in particular. As the different interactions are in general very efficient, we have developed an ensemble of tools aimed at getting the appropriate time resolution. We are also working on techniques enabling an assessment of the properties of such systems at the nanoscale.
Main topics
- Bose-Einstein condensation of polaritons in microcavities
- Nonlinear dynamics of semiconductor microcavities
- Coherence spectroscopy of nano and micro-structures
- Dynamics of charge carriers in microstructures
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Blue laser operation lacks a comprehensive theory
26.08.15 EPFL scientists have discovered that blue lasers operation involves an unexpected quantum phenomenon that eschews all traditional theories.
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A new toolbox to tune polaritons
02.07.14 EPFL scientists show for the first time a method for tuning polariton collisions, with great implications for quantum physics research and superfluidity.
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Dissociation of a full quantized vortix into two half vortices.
04.09.14 Dissociation dynamics of singly charged vortices into half-quantum vortex pairs.
Expertise of LOEQ
Light-matter interactions. Space and time resolved spectroscopy on low dimensional semiconductor structures. Bose Einstein Condensation and superfluidity of microcavity polaritons. Photonic crystals.
Contact
EPFL SB IPHYS LOEQ
PH D3 445 (Bâtiment PH)
Station 3
CH-1015 Lausanne
Switzerland