Improvement of Birefringent Filters. 2:Achromatic Waveplates

摘要: By use of Jones’ matrix techniques, nine-element achromatic waveplates are developed. These combination plates to within 1° throughout the visible (3,500–10,000 A). In addition, a two-section general retarder rotator is demonstrated. The retardation twice complement angle between halves, while rotation equal halves. For 90° retardation, dual five-element also visible.