Optimal Design and Analysis of 4.7 μm Hybrid Deep Dielectric High Efficiency Transmission Gratings
There is currently no transmission grating with good diffraction efficiency in the 4.7 μm band. Metal gratings at this wavelength are all reflective gratings which has a diffraction efficiency of lower than 90% and lower laser damage threshold. In this paper, we bring up a design of a multi-layer tr...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/13/10/1706 |
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| author | Ye Wang Xiuhua Fu Yongyi Chen Hangyu Peng Li Qin Yongqiang Ning Lijun Wang |
| author_facet | Ye Wang Xiuhua Fu Yongyi Chen Hangyu Peng Li Qin Yongqiang Ning Lijun Wang |
| author_sort | Ye Wang |
| collection | DOAJ |
| description | There is currently no transmission grating with good diffraction efficiency in the 4.7 μm band. Metal gratings at this wavelength are all reflective gratings which has a diffraction efficiency of lower than 90% and lower laser damage threshold. In this paper, we bring up a design of a multi-layer transmission grating with both high diffraction efficiency and wide working wavelength band. We have proved that the transmission grating made of composite materials has an average diffraction effectiveness of more than 96% throughout the whole spectral range of 200 nm. Meanwhile, the theoretically computed transmission grating has a highest first-order diffraction efficiency of more than 99.77% at 4746 nm. This multilayer dielectric film transmission grating’s optimized design may further boost spectral beam combining power, providing a practical technique for increasing SBC power and brightness. |
| first_indexed | 2024-03-09T19:46:32Z |
| format | Article |
| id | doaj.art-8ebde69bf51242c4943c48e6560ad81c |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T19:46:32Z |
| publishDate | 2022-10-01 |
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| series | Micromachines |
| spelling | doaj.art-8ebde69bf51242c4943c48e6560ad81c2023-11-24T01:23:05ZengMDPI AGMicromachines2072-666X2022-10-011310170610.3390/mi13101706Optimal Design and Analysis of 4.7 μm Hybrid Deep Dielectric High Efficiency Transmission GratingsYe Wang0Xiuhua Fu1Yongyi Chen2Hangyu Peng3Li Qin4Yongqiang Ning5Lijun Wang6School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaThere is currently no transmission grating with good diffraction efficiency in the 4.7 μm band. Metal gratings at this wavelength are all reflective gratings which has a diffraction efficiency of lower than 90% and lower laser damage threshold. In this paper, we bring up a design of a multi-layer transmission grating with both high diffraction efficiency and wide working wavelength band. We have proved that the transmission grating made of composite materials has an average diffraction effectiveness of more than 96% throughout the whole spectral range of 200 nm. Meanwhile, the theoretically computed transmission grating has a highest first-order diffraction efficiency of more than 99.77% at 4746 nm. This multilayer dielectric film transmission grating’s optimized design may further boost spectral beam combining power, providing a practical technique for increasing SBC power and brightness.https://www.mdpi.com/2072-666X/13/10/1706mid-infrareddiffraction gratingmultilayer dielectrictransmission gratinghigh diffraction efficiency |
| spellingShingle | Ye Wang Xiuhua Fu Yongyi Chen Hangyu Peng Li Qin Yongqiang Ning Lijun Wang Optimal Design and Analysis of 4.7 μm Hybrid Deep Dielectric High Efficiency Transmission Gratings Micromachines mid-infrared diffraction grating multilayer dielectric transmission grating high diffraction efficiency |
| title | Optimal Design and Analysis of 4.7 μm Hybrid Deep Dielectric High Efficiency Transmission Gratings |
| title_full | Optimal Design and Analysis of 4.7 μm Hybrid Deep Dielectric High Efficiency Transmission Gratings |
| title_fullStr | Optimal Design and Analysis of 4.7 μm Hybrid Deep Dielectric High Efficiency Transmission Gratings |
| title_full_unstemmed | Optimal Design and Analysis of 4.7 μm Hybrid Deep Dielectric High Efficiency Transmission Gratings |
| title_short | Optimal Design and Analysis of 4.7 μm Hybrid Deep Dielectric High Efficiency Transmission Gratings |
| title_sort | optimal design and analysis of 4 7 μm hybrid deep dielectric high efficiency transmission gratings |
| topic | mid-infrared diffraction grating multilayer dielectric transmission grating high diffraction efficiency |
| url | https://www.mdpi.com/2072-666X/13/10/1706 |
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