Abstract
We report on light-induced optical tuning of colloidal photonic crystals doped with goldnanoparticles (Au-nps). By resonantly exciting the Au-np surface plasmon absorption with picosecond pulses at 0.53 micron in a standard pump-probe setup, we observed permanent changes in the stop band resonance around 1.7 micron, with blue wavelength shifts as large as 30 nm andassociated to a nanoparticle reshaping. Fine tuning was achieved by controlling either the pulse energy or the irradiation time.
Lingua originale | English |
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pagine (da-a) | 091111- |
Numero di pagine | 3 |
Rivista | Applied Physics Letters |
Volume | 93 |
Stato di pubblicazione | Published - 2008 |
All Science Journal Classification (ASJC) codes
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