Tunable structural transmissive color in fano-resonant optical coatings employing phase-change materials
Reversible, nonvolatile, and pronounced refractive index modulation is an unprecedented combination of properties enabled by chalcogenide phase-change materials (PCMs). This combination of properties makes PCMs a fast-growing platform for active, low-energy nanophotonics, including tunability to oth...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Materials Today Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590049823000243 |
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| author | Yi-Siou Huang Chih-Yu Lee Medha Rath Victoria Ferrari Heshan Yu Taylor J. Woehl Jimmy H. Ni Ichiro Takeuchi Carlos Ríos |
| author_facet | Yi-Siou Huang Chih-Yu Lee Medha Rath Victoria Ferrari Heshan Yu Taylor J. Woehl Jimmy H. Ni Ichiro Takeuchi Carlos Ríos |
| author_sort | Yi-Siou Huang |
| collection | DOAJ |
| description | Reversible, nonvolatile, and pronounced refractive index modulation is an unprecedented combination of properties enabled by chalcogenide phase-change materials (PCMs). This combination of properties makes PCMs a fast-growing platform for active, low-energy nanophotonics, including tunability to otherwise passive thin-film optical coatings. Here, we integrate the PCM Sb2Se3 into a novel four-layer thin-film optical coating that exploits photonic Fano resonances to achieve tunable structural colors in both reflection and transmission. We show, contrary to traditional coatings, that Fano-resonant optical coatings (FROCs) allow for achieving transmissive and reflective structures with narrowband peaks at the same resonant wavelength. Moreover, we demonstrate asymmetric optical response in reflection, where Fano resonance and narrow-band filtering are observed depending upon the light incidence side. Finally, we use a multi-objective inverse design via machine learning (ML) to provide a wide range of solution sets with optimized structures while providing information on the performance limitations of the PCM-based FROCs. Adding tunability to the newly introduced Fano-resonant optical coatings opens various applications in spectral and beam splitting, and simultaneous reflective and transmissive displays, diffractive objects, and holograms. |
| first_indexed | 2024-03-13T03:32:13Z |
| format | Article |
| id | doaj.art-42c04b114b6f4279b58f72d6928ad0f3 |
| institution | Directory Open Access Journal |
| issn | 2590-0498 |
| language | English |
| last_indexed | 2024-03-13T03:32:13Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials Today Advances |
| spelling | doaj.art-42c04b114b6f4279b58f72d6928ad0f32023-06-24T05:18:51ZengElsevierMaterials Today Advances2590-04982023-06-0118100364Tunable structural transmissive color in fano-resonant optical coatings employing phase-change materialsYi-Siou Huang0Chih-Yu Lee1Medha Rath2Victoria Ferrari3Heshan Yu4Taylor J. Woehl5Jimmy H. Ni6Ichiro Takeuchi7Carlos Ríos8Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA; Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD, 20742, USADepartment of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USADepartment of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, USADepartment of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA; Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD, 20742, USADepartment of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA; School of Microelectronics, Tianjin University, Tianjin, 300072, ChinaDepartment of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USAU.S. Army, Combat Capabilities Development Command, Army Research Laboratory, USADepartment of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA; Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, MD, 20742, USADepartment of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA; Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD, 20742, USA; Corresponding author.Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA.Reversible, nonvolatile, and pronounced refractive index modulation is an unprecedented combination of properties enabled by chalcogenide phase-change materials (PCMs). This combination of properties makes PCMs a fast-growing platform for active, low-energy nanophotonics, including tunability to otherwise passive thin-film optical coatings. Here, we integrate the PCM Sb2Se3 into a novel four-layer thin-film optical coating that exploits photonic Fano resonances to achieve tunable structural colors in both reflection and transmission. We show, contrary to traditional coatings, that Fano-resonant optical coatings (FROCs) allow for achieving transmissive and reflective structures with narrowband peaks at the same resonant wavelength. Moreover, we demonstrate asymmetric optical response in reflection, where Fano resonance and narrow-band filtering are observed depending upon the light incidence side. Finally, we use a multi-objective inverse design via machine learning (ML) to provide a wide range of solution sets with optimized structures while providing information on the performance limitations of the PCM-based FROCs. Adding tunability to the newly introduced Fano-resonant optical coatings opens various applications in spectral and beam splitting, and simultaneous reflective and transmissive displays, diffractive objects, and holograms.http://www.sciencedirect.com/science/article/pii/S2590049823000243Phase-change materialsStructural colorOptical coatings |
| spellingShingle | Yi-Siou Huang Chih-Yu Lee Medha Rath Victoria Ferrari Heshan Yu Taylor J. Woehl Jimmy H. Ni Ichiro Takeuchi Carlos Ríos Tunable structural transmissive color in fano-resonant optical coatings employing phase-change materials Materials Today Advances Phase-change materials Structural color Optical coatings |
| title | Tunable structural transmissive color in fano-resonant optical coatings employing phase-change materials |
| title_full | Tunable structural transmissive color in fano-resonant optical coatings employing phase-change materials |
| title_fullStr | Tunable structural transmissive color in fano-resonant optical coatings employing phase-change materials |
| title_full_unstemmed | Tunable structural transmissive color in fano-resonant optical coatings employing phase-change materials |
| title_short | Tunable structural transmissive color in fano-resonant optical coatings employing phase-change materials |
| title_sort | tunable structural transmissive color in fano resonant optical coatings employing phase change materials |
| topic | Phase-change materials Structural color Optical coatings |
| url | http://www.sciencedirect.com/science/article/pii/S2590049823000243 |
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