Author:
Laatikainen Jyrki,Koivurova Matias,Turunen Jari,Setälä Tero,Friberg Ari T.
Abstract
We present optical systems, which transform isodiffracting nonstationary beams into fields obeying either cross-spectral purity or spectral invariance. The designs are hybrid refractive-diffractive imaging systems, which are able to perform the desired transformations over a broad spectral bandwidth and irrespective of the state of spatial coherence of the input beam.