Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
852492 | Optik - International Journal for Light and Electron Optics | 2009 | 5 Pages |
Abstract
The spectrum change of a Gaussian pulse in the far field is studied with the Fresnel diffraction integral when it is incident on an aperture with Gaussian form transmittance. It is found that the side-lobes of the diffracted spectral intensity, which exist in a normal circular aperture with unit transmittance, can be eliminated completely under such a condition. Also, the red shift and blue shift of the spectral intensity maximum of the incident pulse are presented.
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Authors
Pin Han, Hone-Ene Hwang,