Phase change materials in photonic devices
Recent developments in reconfigurable photonic devices highly rely on the effective refractive index change enabled by phase change materials (PCMs) as either dielectric surroundings or constituting materials. This universal characteristic, tunable refractive index, is shared among various kinds of...
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| Veröffentlicht in: | Journal of applied physics 2021-01, Vol.129 (3) |
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| container_title | Journal of applied physics |
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| creator | Gong, Zilun Yang, Fuyi Wang, Letian Chen, Rui Wu, Junqiao Grigoropoulos, Costas P. Yao, Jie |
| description | Recent developments in reconfigurable photonic devices highly rely on the effective refractive index change enabled by phase change materials (PCMs) as either dielectric surroundings or constituting materials. This universal characteristic, tunable refractive index, is shared among various kinds of PCMs and has been successfully utilized to achieve multilevel modulations for both free-space and integrated photonics. In this Perspective, we briefly recapitulate the fundamental mechanisms of phase transitions for three dominant PCMs. The progress in integrating different PCMs with on-chip silicon photonics and periodic antenna arrays are reviewed and analyzed in parallel. We also discuss the existing problems of PCM photonics, for example, the compatibility with commercial production line, the stability issue, and accessibility of the stimuli. In the end, we provide the outlook for the improving material engineering of PCM and multi-functional PCM-based photonics devices. |
| doi_str_mv | 10.1063/5.0027868 |
| format | Article |
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This universal characteristic, tunable refractive index, is shared among various kinds of PCMs and has been successfully utilized to achieve multilevel modulations for both free-space and integrated photonics. In this Perspective, we briefly recapitulate the fundamental mechanisms of phase transitions for three dominant PCMs. The progress in integrating different PCMs with on-chip silicon photonics and periodic antenna arrays are reviewed and analyzed in parallel. We also discuss the existing problems of PCM photonics, for example, the compatibility with commercial production line, the stability issue, and accessibility of the stimuli. 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| identifier | ISSN: 0021-8979 |
| ispartof | Journal of applied physics, 2021-01, Vol.129 (3) |
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| language | eng |
| recordid | cdi_scitation_primary_10_1063_5_0027868 |
| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Antenna arrays Applied physics Phase change materials Phase transitions Photonics Refractivity Thermal energy |
| title | Phase change materials in photonic devices |
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