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Continuous Wave Second Harmonic Generation Enabled by Quasi-Bound-States in the Continuum on Gallium Phosphide Metasurfaces
Open accessAbstract
Resonant metasurfaces are an attractive platform for enhancing the nonlinear optical processes, such as second harmonic generation (SHG), since they can generate large local electromagnetic fields while relaxing the phase-matching requirements. Here, we demonstrate visible range, continuous wave (CW) SHG by combining the attractive material properties of gallium phosphide with high quality-factor photonic modes enabled by bound states in the continuum. We obtain efficiencies around 5e–5% W –1 when the system is pumped at 1200 nm wavelength with CW intensities of 1 kW/cm 2 . Moreover, we measure external efficiencies of 0.1% W –1 with pump intensities of only 10 MW/cm 2 for pulsed irradiation. This efficiency is higher than the values previously reported for dielectric metasurfaces, but achieved here with pump intensities that are two orders of magnitude lower. These results take metasurface-based SHG a step closer to practical applications.
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Cites
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
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Applications of bound states in the continuum in photonics
Kang, M., Liu, T., Chan, C. T., & Xiao, M. (2023) · Nature Reviews Physics · doi:10.1038/s42254-023-00642-8 · Cited by 458
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
Interference traps waves in an open system: bound states in the continuum
Sadreev, A. F. (2021) · Reports on Progress in Physics · doi:10.1088/1361-6633/abefb9 · Cited by 265
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
Photon Pairs from Resonant Metasurfaces
Santiago-Cruz, T., Fedotova, A., Sultanov, V., Weissflog, M. A., Arslan, D., Younesi, M., Pertsch, T., Staude, I., Setzpfandt, F., & Chekhova, M. (2021) · Nano Letters · doi:10.1021/acs.nanolett.1c01125 · Cited by 191
Metadata
- Authors
- Anthur, A. P., Zhang, H., Paniagua-Dominguez, R., Kalashnikov, D. A., Ha, S. T., Maß, T. W. W., Kuznetsov, A. I., & Krivitsky, L.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-11-18
- Volume
- 20
- Issue
- 12
- Pages
- 8745-8751
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W3101494759
- Cited by
- 244
- References
- 1
- FWCI
- 21.75
- Type
- journal article
- Language
- en
- Open access
- green
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- Anthur, A. P., Zhang, H., Paniagua-Dominguez, R., Kalashnikov, D. A., Ha, S. T., Maß, T. W. W., Kuznetsov, A. I., & Krivitsky, L. (2020). Continuous Wave Second Harmonic Generation Enabled by Quasi-Bound-States in the Continuum on Gallium Phosphide Metasurfaces. Nano Letters. https://doi.org/10.1021/acs.nanolett.0c03601
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