Effect of replication on the groove shape of a sinusoidal holographic grating

Igor L. Zhurminsky; Rene Hauser

doi:10.1117/1.2744387

1 June 2007 Effect of replication on the groove shape of a sinusoidal holographic grating

Igor L. Zhurminsky, Rene Hauser

Author Affiliations +

Optical Engineering, Vol. 46, Issue 6, 063003 (June 2007). https://doi.org/10.1117/1.2744387

Abstract

We study the changes in groove shape and depth that occur when holographic gratings are replicated in plastic. Specifically, we measure the groove profiles and spatial frequencies of electroplated metal shims made from sinusoidal holographic gratings, and also the same properties of the replicas made of polymethylmethacrylate (also metal shims). Nine samples are studied that have spatial frequencies in the range 600 to 2000 mm^-1. The shims of the replicated gratings have up to 30% shallower grooves and 13% lower diffraction efficiencies than the shims of the originals. The maximum measured diffraction efficiency for shims of the original gratings having 525-to 620-mm^-1 spatial frequencies correspond to a 0.22-μm groove depth, which agrees with the calculated value. We use this information to modify the groove shapes on the holographic gratings to make better plastic replicas.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Igor L. Zhurminsky and Rene Hauser "Effect of replication on the groove shape of a sinusoidal holographic grating," Optical Engineering 46(6), 063003 (1 June 2007). https://doi.org/10.1117/1.2744387

Published: 1 June 2007

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