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Electrically reconfigurable non-volatile metasurface using low-loss optical phase-change material
Open accessAbstract
Active metasurfaces promise reconfigurable optics with drastically improved compactness, ruggedness, manufacturability and functionality compared to their traditional bulk counterparts. Optical phase-change materials (PCMs) offer an appealing material solution for active metasurface devices with their large index contrast and non-volatile switching characteristics. Here we report a large-scale, electrically reconfigurable non-volatile metasurface platform based on optical PCMs. The optical PCM alloy used in the devices, Ge2Sb2Se4Te (GSST), uniquely combines giant non-volatile index modulation capability, broadband low optical loss and a large reversible switching volume, enabling notably enhanced light–matter interactions within the active optical PCM medium. Capitalizing on these favourable attributes, we demonstrated quasi-continuously tuneable active metasurfaces with record half-octave spectral tuning range and large optical contrast of over 400%. We further prototyped a polarization-insensitive phase-gradient metasurface to realize dynamic optical beam steering. An electrically reconfigurable optical metasurface using a Ge2Sb2Se4Te phase change material shows half an octave spectral tuning and promising performances for optical beam steering applications.
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Cited by
Resonant leaky modes in all-dielectric metasystems: Fundamentals and applications
Huang, L., Xu, L., Powell, D. A., Padilla, W. J., & Miroshnichenko, A. E. (2023) · Physics Reports · doi:10.1016/j.physrep.2023.01.001 · Cited by 328
Recent Advances in Tunable Metasurfaces: Materials, Design, and Applications
Abdelraouf, O. A. M., Wang, Z., Liu, H., Dong, Z., Wang, Q., Ye, M., Wang, X. R., Wang, Q. J., & Liu, H. (2022) · ACS Nano · doi:10.1021/acsnano.2c04628 · Cited by 265
Ríos, C., Du, Q., Zhang, Y., Popescu, C.-C., Shalaginov, M. Y., Miller, P., Roberts, C., Kang, M., Richardson, K. A., Gu, T., et al. (2022) · PhotoniX · doi:10.1186/s43074-022-00070-4 · Cited by 252
Self-citationHa, S. T., Li, Q., Yang, J. K. W., Demir, H. V., Brongersma, M. L., & Kuznetsov, A. I. (2024) · Science · doi:10.1126/science.adm7442 · Cited by 112
Non‐Volatile Optical Switch Element Enabled by Low‐Loss Phase Change Material
Yang, X., Lu, L., Li, Y., Wu, Y., Li, Z., Chen, J., & Zhou, L. (2023) · Advanced Functional Materials · doi:10.1002/adfm.202304601 · Cited by 84
Metadata
- Authors
- Zhang, Y., Fowler, C., Liang, J., Azhar, B., Shalaginov, M. Y., Deckoff-Jones, S., An, S., Chou, J. B., Roberts, C. M., Liberman, V., Kang, M., Ríos, C., Richardson, K. A., Rivero-Baleine, C., Gu, T., Zhang, H., & Hu, J.
- Venue
- Nature Nanotechnology
- Published
- 2021-04-19
- Volume
- 16
- Issue
- 6
- Pages
- 661-666
- ISSN
- 1748-3387 (ISSN-L)
- 1748-3395
- OpenAlex
- W3049415259
- Cited by
- 562
- References
- 0
- FWCI
- 23.86
- Type
- journal article
- Language
- en
- Open access
- green
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- Zhang, Y., Fowler, C., Liang, J., Azhar, B., Shalaginov, M. Y., Deckoff-Jones, S., An, S., Chou, J. B., Roberts, C. M., Liberman, V., Kang, M., Ríos, C., Richardson, K. A., Rivero-Baleine, C., Gu, T., Zhang, H., & Hu, J. (2021). Electrically reconfigurable non-volatile metasurface using low-loss optical phase-change material. Nature Nanotechnology. https://doi.org/10.1038/s41565-021-00881-9
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