Form birefringent microstructures: modeling and design

I. Richter; Pang Chen Sun; Fang Xu; Yeshaiahu Fainman

doi:10.1117/12.207497

20 April 1995 Form birefringent microstructures: modeling and design

I. Richter, Pang Chen Sun, Fang Xu, Yeshaiahu Fainman

Proceedings Volume 2404, Diffractive and Holographic Optics Technology II; (1995) https://doi.org/10.1117/12.207497
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

Diffraction characteristics of high-spatial-frequency gratings (HSF) are evaluated for application to polarization-selective computer generated holograms using two different approaches, second order effective-medium theory (EMT) and rigorous coupled-wave analysis (RCWA). The reflectivities and the phase differences for TE and TM polarized waves are investigated in terms of various input parameters, and results obtained with second order EMT and RCWA are compared. It is shown that while the reflection characteristics can be accurately modeled using the second order EMT, the phase difference created by form birefringence for TE and TM polarized waves requires the use of a more rigorous, RCWA approach. Design of HSF gratings in terms of their form birefringence and reflectivity properties is discussed in conjunction with polarization-selective computer generated holograms. A specific design optimization example furnishes a grating profile that provides a trade-off between largest form birefringence and lowest reflectivities.

Citation Download Citation

I. Richter, Pang Chen Sun, Fang Xu, and Yeshaiahu Fainman "Form birefringent microstructures: modeling and design", Proc. SPIE 2404, Diffractive and Holographic Optics Technology II, (20 April 1995); https://doi.org/10.1117/12.207497

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