Polarization-splitting characteristics of groove phase gratings with subwavelength structures

Qizhi Zhang; Zhiheng Wang; Kexiang Fu; Jun Wen

doi:10.1117/12.318299

5 August 1998 Polarization-splitting characteristics of groove phase gratings with subwavelength structures

Qizhi Zhang, Zhiheng Wang, Kexiang Fu, Jun Wen

Proceedings Volume 3557, Current Developments in Optical Elements and Manufacturing; (1998) https://doi.org/10.1117/12.318299
Event: Photonics China '98, 1998, Beijing, China

Abstract

In this paper, the special property of polarization- splitting of groove phase gratings with subwavelength structures is investigated by mode-matching method. For suitable parameters such as period, groove depth and filling factor, the gratings are be high-reflective for TE polarization and antireflective (high-transmissive) for TM polarization. Two linear polarized normal incident lights of different wavelengths are split whether their polarization directions are perpendicular or parallel. For unpolarized monochromatic incident light, linear polarized lights are obtained in both reflection and transmission. Loss of energy is maximally avoided.

Citation Download Citation

Qizhi Zhang, Zhiheng Wang, Kexiang Fu, and Jun Wen "Polarization-splitting characteristics of groove phase gratings with subwavelength structures", Proc. SPIE 3557, Current Developments in Optical Elements and Manufacturing, (5 August 1998); https://doi.org/10.1117/12.318299

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