Observation of Cartesian light propagation through a three-dimensional cavity superlattice in a silicon photonic band gap crystal
We experimentally investigate peculiar light propagation inside a three-dimensional (3D) superlattice of resonant cavities that are confined within a 3D photonic band gap. To this end, we fabricated 3D diamondlike photonic crystals from silicon with a broad 3D band gap in the near-infrared and doped...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2024-12-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.6.043235 |
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| author | Manashee Adhikary Marek Kozoň Ravitej Uppu Willem L. Vos |
| author_facet | Manashee Adhikary Marek Kozoň Ravitej Uppu Willem L. Vos |
| author_sort | Manashee Adhikary |
| collection | DOAJ |
| description | We experimentally investigate peculiar light propagation inside a three-dimensional (3D) superlattice of resonant cavities that are confined within a 3D photonic band gap. To this end, we fabricated 3D diamondlike photonic crystals from silicon with a broad 3D band gap in the near-infrared and doped them with a periodic array of point defects. In position-resolved reflectivity and scattering microscopy, we observe narrow spectral features that match well with superlattice bands in band structures computed with the plane-wave expansion. The cavities are coupled in all three dimensions when they are closely spaced (a_{SL}≤3a), and uncoupled when they are further apart. The superlattice bands correspond to light that hops in high-symmetry directions in 3D (“Cartesian light”) that opens applications in 3D photonic networks, 3D Anderson localization of light, and future 3D quantum photonic networks. |
| format | Article |
| id | doaj-art-2f219c1b4b77482c9bbccdd4b874b6ca |
| institution | OA Journals |
| issn | 2643-1564 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-2f219c1b4b77482c9bbccdd4b874b6ca2025-08-20T02:18:44ZengAmerican Physical SocietyPhysical Review Research2643-15642024-12-016404323510.1103/PhysRevResearch.6.043235Observation of Cartesian light propagation through a three-dimensional cavity superlattice in a silicon photonic band gap crystalManashee AdhikaryMarek KozoňRavitej UppuWillem L. VosWe experimentally investigate peculiar light propagation inside a three-dimensional (3D) superlattice of resonant cavities that are confined within a 3D photonic band gap. To this end, we fabricated 3D diamondlike photonic crystals from silicon with a broad 3D band gap in the near-infrared and doped them with a periodic array of point defects. In position-resolved reflectivity and scattering microscopy, we observe narrow spectral features that match well with superlattice bands in band structures computed with the plane-wave expansion. The cavities are coupled in all three dimensions when they are closely spaced (a_{SL}≤3a), and uncoupled when they are further apart. The superlattice bands correspond to light that hops in high-symmetry directions in 3D (“Cartesian light”) that opens applications in 3D photonic networks, 3D Anderson localization of light, and future 3D quantum photonic networks.http://doi.org/10.1103/PhysRevResearch.6.043235 |
| spellingShingle | Manashee Adhikary Marek Kozoň Ravitej Uppu Willem L. Vos Observation of Cartesian light propagation through a three-dimensional cavity superlattice in a silicon photonic band gap crystal Physical Review Research |
| title | Observation of Cartesian light propagation through a three-dimensional cavity superlattice in a silicon photonic band gap crystal |
| title_full | Observation of Cartesian light propagation through a three-dimensional cavity superlattice in a silicon photonic band gap crystal |
| title_fullStr | Observation of Cartesian light propagation through a three-dimensional cavity superlattice in a silicon photonic band gap crystal |
| title_full_unstemmed | Observation of Cartesian light propagation through a three-dimensional cavity superlattice in a silicon photonic band gap crystal |
| title_short | Observation of Cartesian light propagation through a three-dimensional cavity superlattice in a silicon photonic band gap crystal |
| title_sort | observation of cartesian light propagation through a three dimensional cavity superlattice in a silicon photonic band gap crystal |
| url | http://doi.org/10.1103/PhysRevResearch.6.043235 |
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