The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Electrical control of second-harmonic generation in a WSe2 monolayer transistor
Open accessAbstract
Nonlinear optical frequency conversion, in which optical fields interact with a nonlinear medium to produce new field frequencies, is ubiquitous in modern photonic systems. However, the nonlinear electric susceptibilities that give rise to such phenomena are often challenging to tune in a given material and, so far, dynamical control of optical nonlinearities remains confined to research laboratories as a spectroscopic tool. Here, we report a mechanism to electrically control second-order optical nonlinearities in monolayer WSe₂, an atomically thin semiconductor. We show that the intensity of second-harmonic generation at the A-exciton resonance is tunable by over an order of magnitude at low temperature and nearly a factor of four at room temperature through electrostatic doping in a field-effect transistor. Such tunability arises from the strong exciton charging effects in monolayer semiconductors, which allow for exceptional control over the oscillator strengths at the exciton and trion resonances. The exciton-enhanced second-harmonic generation is counter-circularly polarized to the excitation laser due to the combination of the two-photon and one-photon valley selection rules, which have opposite helicity in the monolayer. Our study paves the way towards a new platform for chip-scale, electrically tunable nonlinear optical devices based on two-dimensional semiconductors.
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Cites
The Principles of Nonlinear Optics
Shen, Y. R. (1984) · Cited by 5,211
Coupled Spin and Valley Physics in Monolayers ofMoS2and Other Group-VI Dichalcogenides
Xiao, D., Liu, G.-B., Feng, W., Xu, X., & Yao, W. (2012) · Physical Review Letters · doi:10.1103/physrevlett.108.196802 · Cited by 5,152
Self-citationControl of valley polarization in monolayer MoS2 by optical helicity
Mak, K. F., He, K., Shan, J., & Heinz, T. F. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2012.96 · Cited by 4,034
Valley polarization in MoS2 monolayers by optical pumping
Zeng, H., Dai, J., Yao, W., Xiao, D., & Cui, X. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2012.95 · Cited by 3,693
Self-citationTightly bound trions in monolayer MoS2
Mak, K. F., He, K., Lee, C., Lee, G. H., Hone, J., Heinz, T. F., & Shan, J. (2013) · Nature Materials · doi:10.1038/nmat3505 · Cited by 2,865
Valley-selective circular dichroism of monolayer molybdenum disulphide
Cao, T., Wang, G., Han, W., Ye, H., Zhu, C., Shi, J., Niu, Q., Tan, P., Wang, E., Liu, B., et al. (2012) · Nature Communications · doi:10.1038/ncomms1882 · Cited by 2,605
Exciton Binding Energy and Nonhydrogenic Rydberg Series in Monolayer WS2
Chernikov, A., Berkelbach, T. C., Hill, H. M., Rigosi, A., Li, Y., Aslan, B., Reichman, D. R., Hybertsen, M. S., & Heinz, T. F. (2014) · Physical Review Letters · doi:10.1103/physrevlett.113.076802 · Cited by 2,546
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Band-Edge Electroabsorption in Quantum Well Structures: The Quantum-Confined Stark Effect
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Electrical control of neutral and charged excitons in a monolayer semiconductor
Ross, J. S., Wu, S., Yu, H., Ghimire, N. J., Jones, A. M., Aivazian, G., Yan, J., Mandrus, D. G., Xiao, D., Yao, W., et al. (2013) · Nature Communications · doi:10.1038/ncomms2498 · Cited by 1,583
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Cited by
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
Self-citationStructural phase transition in monolayer MoTe2 driven by electrostatic doping
Wang, Y., Xiao, J., Zhu, H., Li, Y., Alsaid, Y., Fong, K. Y., Zhou, Y., Wang, S., Shi, W., Wang, Y., et al. (2017) · Nature · doi:10.1038/nature24043 · Cited by 803
Ouyang, Q., Zeng, S., Jiang, L., Hong, L., Xu, G., Dinh, X.-Q., Qian, J., He, S., Qu, J., Coquet, P., et al. (2016) · Scientific Reports · doi:10.1038/srep28190 · Cited by 420
3R MoS2 with Broken Inversion Symmetry: A Promising Ultrathin Nonlinear Optical Device
Shi, J., Yu, P., Liu, F., He, P., Wang, R., Qin, L., Zhou, J., Li, X., Zhou, J., Sui, X., et al. (2017) · Advanced Materials · doi:10.1002/adma.201701486 · Cited by 353
Metadata
- Authors
- Seyler, K. L., Schaibley, J. R., Gong, P., Rivera, P., Jones, A. M., Wu, S., Yan, J., Mandrus, D. G., Yao, W., & Xu, X.
- Venue
- Nature Nanotechnology
- Published
- 2015-04-20
- Volume
- 10
- Issue
- 5
- Pages
- 407-411
- ISSN
- 1748-3387 (ISSN-L)
- 1748-3395
- OpenAlex
- W2045093183
- Cited by
- 572
- References
- 34
- FWCI
- 19.05
- Type
- journal article
- Language
- en
- Open access
- green
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- Seyler, K. L., Schaibley, J. R., Gong, P., Rivera, P., Jones, A. M., Wu, S., Yan, J., Mandrus, D. G., Yao, W., & Xu, X. (2015). Electrical control of second-harmonic generation in a WSe2 monolayer transistor. Nature Nanotechnology. https://doi.org/10.1038/nnano.2015.73
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