Negative dispersion using pairs of prisms

R. L. Fork, O. E. Martinez, J. P. Gordon
1984 Optics Letters  
We show that pairs of prisms can have negative group-velocity dispersion in the absence of any negative material dispersion. A prism arrangement is described that limits losses to Brewster-surface reflections, avoids transverse displacement of the temporally dispersed rays, permits continuous adjustment of the dispersion through zero, and yields a transmitted beam collinear with the incident beam.
doi:10.1364/ol.9.000150 pmid:19721526 fatcat:sonkbgd6e5dxzahnknl4lqzapa