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Conference Paper
Diffractive Optics and Micro-Optics
Rochester, New York United States
October 10, 2004
ISBN: 1-55752-779-2
Subwavelength Optics II (DTuC)

Combination of blazed and laterally blazed structures

Bernd H. Kleemann, Ralf Arnold, and Johannes Ruoff

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We present a new type of sub-wavelength blazed grating characterized by structures having a "pie-slice" form with sub-wavelength feature sizes in the direction lateral to the dispersion direction. We rigorously compute efficiency curves and compare them to binary blazed and conventional échelette gratings. We find that in the resonance domain the performance of laterally blazed structures is superior to conventional blaze gratings. For very small periods binary blazed gratings show the best performance, which is a consequence of a wave guiding phenomenon occurring in the sub-wavelength ridges. Outside this region, however, the laterally blazed gratings have comparable blaze efficiencies.

© 2004 Optical Society of America

OCIS Codes
(050.1380) Diffraction and gratings : Binary optics
(050.1970) Diffraction and gratings : Diffractive optics

B. H. Kleemann, R. Arnold, and J. Ruoff, "Combination of blazed and laterally blazed structures," in Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing, OSA Technical Digest (Optical Society of America, 2004), paper DTuC7.

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