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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 20, Iss. 11 — Jun. 1, 1995
  • pp: 1349–1351

All-dielectric high-efficiency reflection gratings made with multilayer thin-film coatings

Lifeng Li and Jeffrey Hirsh  »View Author Affiliations


Optics Letters, Vol. 20, Issue 11, pp. 1349-1351 (1995)
http://dx.doi.org/10.1364/OL.20.001349


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Abstract

We made a high-efficiency reflection grating by coating a nine-layer quarter-wave system of ZnS/Na3AlF6 directly onto a surface-relief grating in photoresist. Efficiencies of 70% and 84% were measured at the first-order Littrow mount with the laser beam incident from the air side and from the substrate side, respectively. The experimental results are in qualitative agreement with theoretical predictions. The key to further improvement in the diffraction efficiency is to improve the contour conformation of the coated dielectric layers.

© 1995 Optical Society of America

History
Original Manuscript: February 21, 1995
Published: June 1, 1995

Citation
Lifeng Li and Jeffrey Hirsh, "All-dielectric high-efficiency reflection gratings made with multilayer thin-film coatings," Opt. Lett. 20, 1349-1351 (1995)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-20-11-1349

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