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Enhanced Nonlinear Refractive Index inε-Near-Zero Materials
Open accessAbstract
New propagation regimes for light arise from the ability to tune the dielectric permittivity to extremely low values. Here, we demonstrate a universal approach based on the low linear permittivity values attained in the ε-near-zero (ENZ) regime for enhancing the nonlinear refractive index, which enables remarkable light-induced changes of the material properties. Experiments performed on Al-doped ZnO (AZO) thin films show a sixfold increase of the Kerr nonlinear refractive index (n_{2}) at the ENZ wavelength, located in the 1300 nm region. This in turn leads to ultrafast light-induced refractive index changes of the order of unity, thus representing a new paradigm for nonlinear optics.
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Citations
Cited by
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Shaltout, A. M., Shalaev, V. M., & Brongersma, M. L. (2019) · Science · doi:10.1126/science.aat3100 · Cited by 1,020
Self-citationFunctional Meta-Optics and Nanophotonics Governed by Mie Resonances
Kruk, S., & Kivshar, Y. (2017) · ACS Photonics · doi:10.1021/acsphotonics.7b01038 · Cited by 643
Nonlinear metasurfaces: a paradigm shift in nonlinear optics
Krasnok, A., Tymchenko, M., & Alù, A. (2018) · Materials Today · doi:10.1016/j.mattod.2017.06.007 · Cited by 613
Nonlinear optical effects in epsilon-near-zero media
Reshef, O., De Leon, I., Alam, M. Z., & Boyd, R. W. (2019) · Nature Reviews Materials · doi:10.1038/s41578-019-0120-5 · Cited by 574
Near-zero-index materials for photonics
Kinsey, N., DeVault, C., Boltasseva, A., & Shalaev, V. M. (2019) · Nature Reviews Materials · doi:10.1038/s41578-019-0133-0 · Cited by 394
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Metadata
- Authors
- Caspani, L., Kaipurath, R. P. M., Clerici, M., Ferrera, M., Roger, T., Kim, J., Kinsey, N., Pietrzyk, M., Di Falco, A., Shalaev, V. M., Boltasseva, A., & Faccio, D.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2016-06-08
- Volume
- 116
- Issue
- 23
- Pages
- 233901-233901
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2295241617
- Cited by
- 467
- References
- 0
- FWCI
- 14.46
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Caspani, L., Kaipurath, R. P. M., Clerici, M., Ferrera, M., Roger, T., Kim, J., Kinsey, N., Pietrzyk, M., Di Falco, A., Shalaev, V. M., Boltasseva, A., & Faccio, D. (2016). Enhanced Nonlinear Refractive Index inε-Near-Zero Materials. Physical Review Letters. https://doi.org/10.1103/physrevlett.116.233901
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