Preprint article · Journal article
Ultrafast coherent dynamics of a photonic crystal all-optical switch
We present pump-probe measurements of an all-optical photonic crystal switch based on a nanocavity, resolving fast coherent temporal dynamics. The measurements demonstrate the importance of coherent effects typically neglected when considering nanocavity dynamics. In particular, we report the observation of an idler pulse.
The measurements are in good agreement with a theoretical model that allows us to ascribe the observation to oscillations of the free carrier population in the nanocavity. The effect opens perspectives for the realization of new all-optical photonic crystal switches with unprecedented switching contrast.
Language: | English |
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Year: | 2016 |
Pages: | 233901 |
ISSN: | 10797114 and 00319007 |
Types: | Preprint article and Journal article |
DOI: | 10.1103/PhysRevLett.117.233901 |
ORCIDs: | Yu, Yi and Mørk, Jesper |
Laser beam modulation, pulsing and switching; mode locking and tuning Nanophotonic devices and technology Optical materials Optical switches Photonic bandgap materials Ultrafast optical techniques fast coherent temporal dynamics free carrier population idler pulse nanocavity dynamics nanophotonics optical pulse generation optical pumping optical switches photonic crystal all-optical switch photonic crystals pump-probe measurements ultrafast coherent dynamics