The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Quasi-BIC Resonant Enhancement of Second-Harmonic Generation in WS2 Monolayers
Abstract
Atomically thin monolayers of transition metal dichalcogenides (TMDs) have emerged as a promising class of novel materials for optoelectronics and nonlinear optics. However, the intrinsic nonlinearity of TMD monolayers is weak, limiting their functionalities for nonlinear optical processes such as frequency conversion. Here we boost the effective nonlinear susceptibility of a TMD monolayer by integrating it with a resonant dielectric metasurface that supports pronounced optical resonances with high quality factors: bound states in the continuum (BICs). We demonstrate that a WS 2 monolayer combined with a silicon metasurface hosting BICs exhibits enhanced second-harmonic intensity by more than 3 orders of magnitude relative to a WS 2 monolayer on top of a flat silicon film of the same thickness. Our work suggests a pathway to employ high-index dielectric metasurfaces as hybrid structures for enhancement of TMD nonlinearities with applications in nonlinear microscopy, optoelectronics, and signal processing.
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Citations
Cites
Photonics and optoelectronics of 2D semiconductor transition metal dichalcogenides
Mak, K. F., & Shan, J. (2016) · Nature Photonics · doi:10.1038/nphoton.2015.282 · Cited by 3,819
Schaibley, J. R., Yu, H., Clark, G., Rivera, P., Ross, J. S., Seyler, K. L., Yao, W., & Xu, X. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2016.55 · Cited by 2,652
Cited by
Photonic Bound States in the Continuum: From Basics to Applications
Azzam, S. I., & Kildishev, A. V. (2021) · Advanced Optical Materials · doi:10.1002/adom.202001469 · Cited by 584
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
Wang, H., Zhang, W., Ladika, D., Yu, H., Gailevičius, D., Wang, H., Pan, C., Nair, P. N. S., Ke, Y., Mori, T., et al. (2023) · Advanced Functional Materials · doi:10.1002/adfm.202214211 · Cited by 401
Dielectric Resonant Metaphotonics
Koshelev, K., & Kivshar, Y. (2021) · ACS Photonics · doi:10.1021/acsphotonics.0c01315 · Cited by 382
Self-citationResonant 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
Metadata
- Authors
- Bernhardt, N., Koshelev, K., White, S. J. U., Meng, K. W. C., Fröch, J. E., Kim, S., Tran, T. T., Choi, D.-Y., Kivshar, Y., & Solntsev, A. S.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-06-12
- Volume
- 20
- Issue
- 7
- Pages
- 5309-5314
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W3035256848
- Cited by
- 318
- References
- 2
- FWCI
- 24.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- Bernhardt, N., Koshelev, K., White, S. J. U., Meng, K. W. C., Fröch, J. E., Kim, S., Tran, T. T., Choi, D.-Y., Kivshar, Y., & Solntsev, A. S. (2020). Quasi-BIC Resonant Enhancement of Second-Harmonic Generation in WS2 Monolayers. Nano Letters. https://doi.org/10.1021/acs.nanolett.0c01603
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