dc.creator Meltzer, R. J. en_US dc.creator Keller, J. D. en_US dc.date.accessioned 2006-06-15T13:09:54Z dc.date.available 2006-06-15T13:09:54Z dc.date.issued 1961 en_US dc.identifier 1961-O-2 en_US dc.identifier.uri http://hdl.handle.net/1811/8129 dc.description $^{1}$R. W. Wood, Proc. Phys. Soc. (London) XVIII, 396 (1902); Phil. Mag. (Sept. 1902). $^{2}$Lord Rayleigh. Proc. Royal Soc. (London) A79, 399 (1907); Phil. Mag. 14, 60 (1907). en_US dc.description Author Institution: Advanced Development Department, Bausch \& Lomb Incorporated en_US dc.description.abstract It has been known for some $time^{1}$ that the intensity distribution observed in a continuous spectrum formed by a blazed diffraction grating may show marked deviation from that predicted by the classical equations. These deviation appear as sharp changes in the energy with the maximum change occurring at a wavelength predicted by $Rayleigh.^{2}$ These sharp changes ran be undesirable in some applications e.g., wavelength scanning, constant energy-out devices. The sharp peaks are also extremely polarized. The objective of this paper is to present experimental data which indicate a possible method of effectively reducing some anomalies. The method requires a modification of conventional techniques in coating a reflection diffraction grating. Energy curves of gratings, coated in the conventional manner and of gratings coated by a method designed to reduce the anomalous effects, show a considerable change m the appearance of the anomalous structure formed by the gratings. In some cases the modified coating method can almost completely eliminate the more pronounced anomaly structure. Data will also be shown for a transmission grating of coarse grooves-which illustrates the difference in the appearance of the anomalies depending on whether they are observed in a spectrum formed by transmission through the grating, or by reflection from the grating. en_US dc.format.extent 128329 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title THE SUPPRESSION OF DIFFRACTION GRATING ANOMALIES en_US dc.type article en_US
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