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Artificial uniaxial and biaxial dielectrics with use of two-dimensional subwavelength binary gratings
Open accessAbstract
Two-dimensional symmetric and asymmetric subwavelength binary gratings are investigated. A method for determining the three effective indices of a two-dimensional (2-D) subwavelength grating is presented, as well as a theoretical formalization for the effective index parallel with the normal to the surface. It is shown that a 2-D asymmetric binary grating on the surface of a dielectric substrate is analogous to a biaxial thin film. If the grating is symmetric, then the two effective indices perpendicular to the normal are equal, and the grating is analogous to a uniaxial thin film. Using these effective indices and the quarter-wave Tschebyscheff synthesis technique, we designed two- and three-level binary gratings to suppress reflections over a broad band. It is shown that for a substrate index of ns = 3.0 a three-level 2-D binary grating reduced reflections below 0.1% from 8 μm to 12 μm.
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Cited by
Waveguide sub‐wavelength structures: a review of principles and applications
Halir, R., Bock, P. J., Cheben, P., Ortega‐Moñux, A., Alonso‐Ramos, C., Schmid, J. H., Lapointe, J., Xu, D., Wangüemert‐Pérez, J. G., Molina‐Fernández, Í., et al. (2015) · Laser & Photonics Reviews · doi:10.1002/lpor.201400083 · Cited by 658
On the effective medium theory of subwavelength periodic structures
Lalanne, P., & Lemercier-lalanne, D. (1996) · Journal of Modern Optics · doi:10.1080/09500349608232871 · Cited by 296
Space-variant polarization manipulation
Hasman, E., Biener, G., Niv, A., & Kleiner, V. (2005) · Progress in Optics · doi:10.1016/s0079-6638(05)47004-3 · Cited by 107
Metadata
- Authors
- Grann, E. B., Moharam, M. G., & Pommet, D. A.
- Venue
- Journal of the Optical Society of America A
- Publisher
- Optica Publishing Group
- Published
- 1994-10-01
- Volume
- 11
- Issue
- 10
- Pages
- 2695
- ISSN
- 1084-7529 (ISSN-L)
- 1520-8532
- OpenAlex
- W2009126559
- Cited by
- 171
- References
- 0
- FWCI
- 5.66
- Type
- journal article
- Language
- en
- Open access
- green
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- Grann, E. B., Moharam, M. G., & Pommet, D. A. (1994). Artificial uniaxial and biaxial dielectrics with use of two-dimensional subwavelength binary gratings. Journal of the Optical Society of America A. https://doi.org/10.1364/josaa.11.002695
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