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Acousto-optic interaction in photonic crystals with defects.
- Source :
-
Journal of Applied Physics . Aug2009, Vol. 106 Issue 4, p043107-1-043107-5. 5p. 5 Graphs. - Publication Year :
- 2009
-
Abstract
- The acousto-optic (AO) effects of photonic crystals (PCs) were studied. Both the PCs’ periodicity and their index distribution could be modulated instantly by the propagating acoustic wave. As a consequence, the PCs’ band structure becomes tunable. In addition to band gap shift in an ideal PC, AO frequency modulation was observed in a PC with single defect, which is quite different from normal AO tunable filters and gives rise to some interesting applications. Furthermore, in dual-defect situation, synchronized and desynchronized modulations were realized at different acoustic wavelengths. Interesting phenomena such as dual frequency sweeping and dual frequency Q-switching were demonstrated. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHOTONICS
*CRYSTAL defects
*WAVELENGTHS
*OPTICS
*ACOUSTIC filters
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 106
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 43975312
- Full Text :
- https://doi.org/10.1063/1.3204018