Gorbach, A. et al. (2010) Spatiotemporal nonlinear optics in arrays of subwavelength waveguides. Physical Review A: Atomic, Molecular and Optical Physics, 82(4), 041802. (doi: 10.1103/PhysRevA.82.041802)
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Abstract
We report numerical and experimental investigations of spatiotemporal nonlinear optical effects leading to spectral broadening in an array of subwavelength silicon waveguides pumped with infrared femtosecond pulses. Adjusting an input pulse position across the array, we observe different patterns in the output spectra. We explain these observations using a theory of the resonant (Cherenkov) radiation emitted by temporal solitons belonging to different spatial supermodes of the array. We also demonstrate strong nonperturbative coupling of temporal dispersion and discrete diffraction in the subwavelength arrays.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Sorel, Professor Marc and De La Rue, Professor Richard and Samarelli, Mr Antonio |
| Authors: | Gorbach, A., Ding, W., Staines, O., de Nobriga, C., Hobbs, G., Wadsworth, W., Knight, J., Skryabin, D., Samarelli, A., Sorel, M., and De La Rue, R.M. |
| Subjects: | Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Physical Review A: Atomic, Molecular and Optical Physics |
| Publisher: | American Physical Society |
| ISSN: | 1050-2947 |
| ISSN (Online): | 1094-1622 |
| Published Online: | 26 October 2010 |
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