Design of polarization-independent multilayer dielectric gratings: a reflection-phase threaded approach
We present a method to design polarization-independent multilayer dielectric gratings. In this method the reflection phases in transverse electric (TE) and transverse magnetic (TM) polarizations of the multilayer stack thread surface-relief grating at the top and the multilayer stack at the bottom t...
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EDP Sciences
2024-01-01
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| Series: | Journal of the European Optical Society-Rapid Publications |
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| Online Access: | https://jeos.edpsciences.org/articles/jeos/full_html/2024/02/jeos20240053/jeos20240053.html |
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| author | Shen Sitong Li Lifeng Zeng Lijiang |
| author_facet | Shen Sitong Li Lifeng Zeng Lijiang |
| author_sort | Shen Sitong |
| collection | DOAJ |
| description | We present a method to design polarization-independent multilayer dielectric gratings. In this method the reflection phases in transverse electric (TE) and transverse magnetic (TM) polarizations of the multilayer stack thread surface-relief grating at the top and the multilayer stack at the bottom together, allowing the two parts first to be designed separately and efficiently, and then to be combined to achieve simultaneously high diffraction efficiency and large fabrication tolerance. We find numerically that in general a periodic stack is unable to provide the top-grating-demanded phase difference between TM and TE polarizations; adequate aperiodic layers atop of a periodic stack are needed. The analytic diffraction efficiency formula of a recent work [J. Opt. Soc. Am. A 41, 252 (2024). https://doi.org/10.1364/JOSAA.511422] is used at various places of the presented optimization algorithm to save computation time. An example grating with rectangular surface-relief profile and another with trapezoidal profile were successfully designed, validating the effectiveness of this design method. |
| format | Article |
| id | doaj-art-0f1d6217dce241419152f0aa1f343e11 |
| institution | Kabale University |
| issn | 1990-2573 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Journal of the European Optical Society-Rapid Publications |
| spelling | doaj-art-0f1d6217dce241419152f0aa1f343e112025-01-08T11:00:48ZengEDP SciencesJournal of the European Optical Society-Rapid Publications1990-25732024-01-012024310.1051/jeos/2024044jeos20240053Design of polarization-independent multilayer dielectric gratings: a reflection-phase threaded approachShen Sitong0https://orcid.org/0009-0001-6466-4629Li Lifeng1https://orcid.org/0000-0002-8405-6639Zeng Lijiang2State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua UniversityState Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua UniversityState Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua UniversityWe present a method to design polarization-independent multilayer dielectric gratings. In this method the reflection phases in transverse electric (TE) and transverse magnetic (TM) polarizations of the multilayer stack thread surface-relief grating at the top and the multilayer stack at the bottom together, allowing the two parts first to be designed separately and efficiently, and then to be combined to achieve simultaneously high diffraction efficiency and large fabrication tolerance. We find numerically that in general a periodic stack is unable to provide the top-grating-demanded phase difference between TM and TE polarizations; adequate aperiodic layers atop of a periodic stack are needed. The analytic diffraction efficiency formula of a recent work [J. Opt. Soc. Am. A 41, 252 (2024). https://doi.org/10.1364/JOSAA.511422] is used at various places of the presented optimization algorithm to save computation time. An example grating with rectangular surface-relief profile and another with trapezoidal profile were successfully designed, validating the effectiveness of this design method.https://jeos.edpsciences.org/articles/jeos/full_html/2024/02/jeos20240053/jeos20240053.htmlpolarization-independent gratingsmultilayer dielectric gratingsmultilayer stacksreflection phase |
| spellingShingle | Shen Sitong Li Lifeng Zeng Lijiang Design of polarization-independent multilayer dielectric gratings: a reflection-phase threaded approach Journal of the European Optical Society-Rapid Publications polarization-independent gratings multilayer dielectric gratings multilayer stacks reflection phase |
| title | Design of polarization-independent multilayer dielectric gratings: a reflection-phase threaded approach |
| title_full | Design of polarization-independent multilayer dielectric gratings: a reflection-phase threaded approach |
| title_fullStr | Design of polarization-independent multilayer dielectric gratings: a reflection-phase threaded approach |
| title_full_unstemmed | Design of polarization-independent multilayer dielectric gratings: a reflection-phase threaded approach |
| title_short | Design of polarization-independent multilayer dielectric gratings: a reflection-phase threaded approach |
| title_sort | design of polarization independent multilayer dielectric gratings a reflection phase threaded approach |
| topic | polarization-independent gratings multilayer dielectric gratings multilayer stacks reflection phase |
| url | https://jeos.edpsciences.org/articles/jeos/full_html/2024/02/jeos20240053/jeos20240053.html |
| work_keys_str_mv | AT shensitong designofpolarizationindependentmultilayerdielectricgratingsareflectionphasethreadedapproach AT lilifeng designofpolarizationindependentmultilayerdielectricgratingsareflectionphasethreadedapproach AT zenglijiang designofpolarizationindependentmultilayerdielectricgratingsareflectionphasethreadedapproach |