Femtosecond pulse shaping by a reflection grating in the resonance domain

摘要

Femtosecond pulse shaping by temporal superresolution with a single metallic diffraction grating in the resonance domain has been numerically investigated. It is predicted that a femtosecond pulse can be compressed by more than 20%. Comparing with the previously reported pulse compression with a transmission grating, a metallic reflection grating can avoid several problems associated with a grating substrate of a transmission one. Therefore, the proposed pulse compression scheme is highly feasible in practical experiments. Effects of fabrication errors on the performances and applicable pulse width range are discussed. In addition, potential problems of analysis and design in using a multilevel grating for pulsed light are discussed.