Comparative study of the accuracy of the PSM and Kogelnik models of diffraction in reflection and transmission holographic gratings
Brotherton-Ratcliffe, David, Shi, Lishen, Osanlou, Ardeshir and Excell, Peter S (2014) Comparative study of the accuracy of the PSM and Kogelnik models of diffraction in reflection and transmission holographic gratings. Optics Express, 22 (26). pp. 32384-32405. ISSN 1094-4087
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Abstract
Calculated diffractive efficiencies in the visible spectral band from lossless planar holographic gratings are studied using the PSM and Kogelnik models of diffraction for the case of the σ-polarization. The results are numerically compared with rigorous coupled wave calculations over a wide parameter space covering both transmission and reflection geometries. For most reflection gratings, the PSM model is shown to consistently provide a marginally superior estimation of the diffractive efficiency. This is particularly evident in a clearly superior description of the diffractive sideband structure for most gratings, both in terms of angle and wavelength. For the transmission grating, the PSM model continues to provide a relatively good description of diffraction at low permittivity modulations and lower incidence angles with respect to the grating plane normal. However, overall Kogelnik’s theory is shown to provide a somewhat superior estimation of diffractive efficiency and a clearly superior description of the diffractive side-band structure in the transmission case.
| Item Type: | Article |
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| Additional Information: | © 2014 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited |
| Keywords: | 10.1364/OE.22.032384 |
| Divisions: | Applied Science, Computing and Engineering |
| Depositing User: | Mr Stewart Milne |
| Date Deposited: | 20 May 2015 13:26 |
| Last Modified: | 26 Apr 2018 15:23 |
| URI: | https://glyndwr.repository.guildhe.ac.uk/id/eprint/8304 |
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