2012-01-20
Ultrafast tilting of the dispersion of a photonic crystal and adiabatic spectral compression of light pulses
Publication
Publication
Phys. Rev. Lett. , Volume 108 - Issue Article number: 33902 p. 1- 5
We demonstrate, by theory and experiment, the ultrafast tilting of the dispersion curve of a photoniccrystal waveguide following the absorption of a femtosecond pump pulse. By shaping the pump-beam cross section with a nanometric shadow mask, different waveguide eigenmodes acquire different spatial overlap with the perturbing pump, leading to a local flattening of the dispersion by up to 11%.We find that such partial mode perturbation can be used to adiabatically compress the spectrum of a light pulse traveling through the waveguide.
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| APS | |
| doi.org/10.1103/PhysRevLett.108.033902 | |
| Phys. Rev. Lett. | |
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Beggs, D. M., Krauss, T. F., Kuipers, K., & Kampfrath, T. (2012). Ultrafast tilting of the dispersion of a photonic crystal and adiabatic spectral compression of light pulses. Phys.Rev.Lett., 108(Article number: 33902), 1–5. doi:10.1103/PhysRevLett.108.033902 |
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