We report on light-induced optical tuning of colloidal photonic crystals doped with gold nanoparticles (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 and associated to a nanoparticle reshaping. Fine tuning was achieved by controlling either the pulse energy or the irradiation time.

Pasquazi, A., Stivala, S., Assanto, G., Amendola, V., Meneghetti, M., Cucini, M., et al. (2008). In situ tuning of a photonic band gap with laser pulses. APPLIED PHYSICS LETTERS, 93, 091111.

In situ tuning of a photonic band gap with laser pulses

STIVALA, Salvatore;
2008-01-01

Abstract

We report on light-induced optical tuning of colloidal photonic crystals doped with gold nanoparticles (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 and associated to a nanoparticle reshaping. Fine tuning was achieved by controlling either the pulse energy or the irradiation time.
2008
Pasquazi, A., Stivala, S., Assanto, G., Amendola, V., Meneghetti, M., Cucini, M., et al. (2008). In situ tuning of a photonic band gap with laser pulses. APPLIED PHYSICS LETTERS, 93, 091111.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/49275
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 12
  • ???jsp.display-item.citation.isi??? ND
social impact