Optical characterization of chiral three-dimensionally periodic photonic crystals fabricated by temporally periodic physical vapor deposition on two-dimensionally periodic substrates
We fabricated chiral three-dimensionally (3D) periodic photonic crystals (PPCs) with nanoscale features by: first etching two different two-dimensionally (2D) periodic patterns in fused silica and silicon substrates, and then implementing temporally periodic physical vapor deposition (TP-PVD) whereb...
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IOP Publishing
2025-01-01
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| Series: | Journal of Physics Communications |
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| Online Access: | https://doi.org/10.1088/2399-6528/ade7c9 |
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| author | Ricardo A Fiallo Mark W Horn Akhlesh Lakhtakia |
| author_facet | Ricardo A Fiallo Mark W Horn Akhlesh Lakhtakia |
| author_sort | Ricardo A Fiallo |
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| description | We fabricated chiral three-dimensionally (3D) periodic photonic crystals (PPCs) with nanoscale features by: first etching two different two-dimensionally (2D) periodic patterns in fused silica and silicon substrates, and then implementing temporally periodic physical vapor deposition (TP-PVD) whereby a collimated vapor flux was directed towards rotating substrates. The patterned substrates as well as the 3D-PPCs were optically characterized in transmission and reflection in relation to the direction of an incident plane wave and the wavelength in the 500-900 nm range, for linear as well as circular polarization states of the incident plane wave. Before TP-PVD, the patterned substrates exhibited opal-like iridescence, and the optical characterization detected nonspecular transmission and Rayleigh–Wood anomalies, consistently with the mathematical predictions for 2D photonic crystals. Iridescence was maintained after TP-PVD. The 3D-PPCs comprise discrete clumps of nanohelixes growing on the unetched regions. Optical characterization of the 3D-PPCs revealed circular-polarization-discriminatory reflection and transmission, Fabry–Pérot resonances, Dyakonov–Tamm waves, nonspecular transmission, and a high-loss regime, but Rayleigh–Wood anomalies could not be unambiguously identified. We expect applications in diverse scenarios wherein matter and circularly polarized light interact. |
| format | Article |
| id | doaj-art-381bcb91e91246fc85194a1d3d1a07c7 |
| institution | Kabale University |
| issn | 2399-6528 |
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| publishDate | 2025-01-01 |
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| series | Journal of Physics Communications |
| spelling | doaj-art-381bcb91e91246fc85194a1d3d1a07c72025-08-20T03:30:41ZengIOP PublishingJournal of Physics Communications2399-65282025-01-019707500110.1088/2399-6528/ade7c9Optical characterization of chiral three-dimensionally periodic photonic crystals fabricated by temporally periodic physical vapor deposition on two-dimensionally periodic substratesRicardo A Fiallo0https://orcid.org/0009-0005-8900-0940Mark W Horn1Akhlesh Lakhtakia2https://orcid.org/0000-0002-2179-2313NanoMM–Nanoengineered Metamaterials Group, Department of Engineering Science and Mechanics, The Pennsylvania State University, 656 White Course Drive, University Park, PA 16802, United States of AmericaNanoMM–Nanoengineered Metamaterials Group, Department of Engineering Science and Mechanics, The Pennsylvania State University, 656 White Course Drive, University Park, PA 16802, United States of AmericaNanoMM–Nanoengineered Metamaterials Group, Department of Engineering Science and Mechanics, The Pennsylvania State University, 656 White Course Drive, University Park, PA 16802, United States of AmericaWe fabricated chiral three-dimensionally (3D) periodic photonic crystals (PPCs) with nanoscale features by: first etching two different two-dimensionally (2D) periodic patterns in fused silica and silicon substrates, and then implementing temporally periodic physical vapor deposition (TP-PVD) whereby a collimated vapor flux was directed towards rotating substrates. The patterned substrates as well as the 3D-PPCs were optically characterized in transmission and reflection in relation to the direction of an incident plane wave and the wavelength in the 500-900 nm range, for linear as well as circular polarization states of the incident plane wave. Before TP-PVD, the patterned substrates exhibited opal-like iridescence, and the optical characterization detected nonspecular transmission and Rayleigh–Wood anomalies, consistently with the mathematical predictions for 2D photonic crystals. Iridescence was maintained after TP-PVD. The 3D-PPCs comprise discrete clumps of nanohelixes growing on the unetched regions. Optical characterization of the 3D-PPCs revealed circular-polarization-discriminatory reflection and transmission, Fabry–Pérot resonances, Dyakonov–Tamm waves, nonspecular transmission, and a high-loss regime, but Rayleigh–Wood anomalies could not be unambiguously identified. We expect applications in diverse scenarios wherein matter and circularly polarized light interact.https://doi.org/10.1088/2399-6528/ade7c9latticesphotonic crystalstructural chiralitycircular bragg phenomenonnonspecular remittanceRayleigh-Wood anomaly |
| spellingShingle | Ricardo A Fiallo Mark W Horn Akhlesh Lakhtakia Optical characterization of chiral three-dimensionally periodic photonic crystals fabricated by temporally periodic physical vapor deposition on two-dimensionally periodic substrates Journal of Physics Communications lattices photonic crystal structural chirality circular bragg phenomenon nonspecular remittance Rayleigh-Wood anomaly |
| title | Optical characterization of chiral three-dimensionally periodic photonic crystals fabricated by temporally periodic physical vapor deposition on two-dimensionally periodic substrates |
| title_full | Optical characterization of chiral three-dimensionally periodic photonic crystals fabricated by temporally periodic physical vapor deposition on two-dimensionally periodic substrates |
| title_fullStr | Optical characterization of chiral three-dimensionally periodic photonic crystals fabricated by temporally periodic physical vapor deposition on two-dimensionally periodic substrates |
| title_full_unstemmed | Optical characterization of chiral three-dimensionally periodic photonic crystals fabricated by temporally periodic physical vapor deposition on two-dimensionally periodic substrates |
| title_short | Optical characterization of chiral three-dimensionally periodic photonic crystals fabricated by temporally periodic physical vapor deposition on two-dimensionally periodic substrates |
| title_sort | optical characterization of chiral three dimensionally periodic photonic crystals fabricated by temporally periodic physical vapor deposition on two dimensionally periodic substrates |
| topic | lattices photonic crystal structural chirality circular bragg phenomenon nonspecular remittance Rayleigh-Wood anomaly |
| url | https://doi.org/10.1088/2399-6528/ade7c9 |
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