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The holographic hallmarking of interference diffraction gratings |
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| Authors: | M.C. Hutley J.F. Verrill |
| Affiliation: | Division of Mechanical and Optical Metrology, National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK |
| Abstract: | It has been demonstrated that by recording a hologram orthogonal to the grooves of an interference grating, it is possible to record information which will identify the grating without degrading its spectral performance. |
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