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- Title
Band Gap Resonant Femtosecond Pulse Propagation in Nonlinear Dispersive Semiconductor Waveguides.
- Authors
Kumar, Abhay; Sen, Pratima; Sen, Pranay K.
- Abstract
A detailed numerical analysis has been made for a femtosecond not-too-strong Gaussian pulse propagating through a millimeter size GaAs waveguide. The role of weakly bound 1s-excitonic structure below the fundamental absorption edge has been incorporated in the time dependent perturbation treatment of the coherent pulse-semiconductor interaction. The analysis reveals the occurrence of both self-steepening and spectral broadening arising due to the inherent intensity dependence of the complex optical susceptibility in GaAs waveguide structures.
- Subjects
WAVEGUIDES; SEMICONDUCTORS
- Publication
Journal of Nonlinear Optical Physics & Materials, 2000, Vol 9, Issue 2, p209
- ISSN
0218-8635
- Publication type
Article
- DOI
10.1142/S0218863500000121