Shi, J., Wu, X., Wu, K., Zhang, S., Sui, X., Du, W., Yue, S., Liang, Y., Jiang, C., Wang, Z., Wang, W., Liu, L., Wu, B., Zhang, Q., Huang, Y., Qiu, C. W., & Liu, X. (2022). Giant Enhancement and Directional Second Harmonic Emission from Monolayer WS2on Silicon Substrate via Fabry-Pérot Micro-Cavity. ACS Nano, 16(9), 13933-13941. https://doi.org/10.1021/acsnano.2c03033
Shi, Jianwei ; Wu, Xianxin ; Wu, Keming et al. / Giant Enhancement and Directional Second Harmonic Emission from Monolayer WS2on Silicon Substrate via Fabry-Pérot Micro-Cavity. In: ACS Nano. 2022 ; Vol. 16, No. 9. pp. 13933-13941.
@article{be2cc67ae3224d5f973c3c872b45869c,
title = "Giant Enhancement and Directional Second Harmonic Emission from Monolayer WS2on Silicon Substrate via Fabry-P{\'e}rot Micro-Cavity",
abstract = "Two-dimensional transition metal dichalcogenides (TMDs) possess large second-order optical nonlinearity, making them ideal candidates for miniaturized on-chip frequency conversion devices, all-optical interconnection, and optoelectronic integration components. However, limited by subnanometer thickness, the monolayer TMD exhibits low second harmonic generation (SHG) conversion efficiency (<0.1%) and poor directionality, which hinders their practical applications. Herein, we proposed a Fabry-P{\'e}rot (F-P) cavity formed by coupling an atomically thin WS2film with a silicon hole matrix to enhance the SH emission. A maximum enhancement (∼1580 times) is achieved by tuning the excitation wavelength to be resonant with the microcavity modes. The giant enhancement is attributed to the strong electric field enhancement in the F-P cavity and the oscillator strength enhancement of excitons from suspended WS2. Moreover, directional SH emission (divergence angle ∼5°) is obtained benefiting from the resonance of the F-P microcavity. Our research results can provide a practical sketch to develop both high-efficiency and directional nonlinear optical devices for silicon-based on-chip integration optics.",
keywords = "WS, divergence angle, microcavity, second harmonic generation (SHG), transition metal dichalcogenide (TMD)",
author = "Jianwei Shi and Xianxin Wu and Keming Wu and Shuai Zhang and Xinyu Sui and Wenna Du and Shuai Yue and Yin Liang and Chuanxiu Jiang and Zhuo Wang and Wenxiang Wang and Luqi Liu and Bo Wu and Qing Zhang and Yuan Huang and Qiu, {Cheng Wei} and Xinfeng Liu",
note = "Publisher Copyright: {\textcopyright} 2022 American Chemical Society. All rights reserved.",
year = "2022",
month = sep,
day = "27",
doi = "10.1021/acsnano.2c03033",
language = "English",
volume = "16",
pages = "13933--13941",
journal = "ACS Nano",
issn = "1936-0851",
publisher = "American Chemical Society",
number = "9",
}
Shi, J, Wu, X, Wu, K, Zhang, S, Sui, X, Du, W, Yue, S, Liang, Y, Jiang, C, Wang, Z, Wang, W, Liu, L, Wu, B, Zhang, Q, Huang, Y, Qiu, CW & Liu, X 2022, 'Giant Enhancement and Directional Second Harmonic Emission from Monolayer WS2on Silicon Substrate via Fabry-Pérot Micro-Cavity', ACS Nano, vol. 16, no. 9, pp. 13933-13941. https://doi.org/10.1021/acsnano.2c03033
Giant Enhancement and Directional Second Harmonic Emission from Monolayer WS2on Silicon Substrate via Fabry-Pérot Micro-Cavity. / Shi, Jianwei; Wu, Xianxin; Wu, Keming et al.
In:
ACS Nano, Vol. 16, No. 9, 27.09.2022, p. 13933-13941.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Giant Enhancement and Directional Second Harmonic Emission from Monolayer WS2on Silicon Substrate via Fabry-Pérot Micro-Cavity
AU - Shi, Jianwei
AU - Wu, Xianxin
AU - Wu, Keming
AU - Zhang, Shuai
AU - Sui, Xinyu
AU - Du, Wenna
AU - Yue, Shuai
AU - Liang, Yin
AU - Jiang, Chuanxiu
AU - Wang, Zhuo
AU - Wang, Wenxiang
AU - Liu, Luqi
AU - Wu, Bo
AU - Zhang, Qing
AU - Huang, Yuan
AU - Qiu, Cheng Wei
AU - Liu, Xinfeng
N1 - Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.
PY - 2022/9/27
Y1 - 2022/9/27
N2 - Two-dimensional transition metal dichalcogenides (TMDs) possess large second-order optical nonlinearity, making them ideal candidates for miniaturized on-chip frequency conversion devices, all-optical interconnection, and optoelectronic integration components. However, limited by subnanometer thickness, the monolayer TMD exhibits low second harmonic generation (SHG) conversion efficiency (<0.1%) and poor directionality, which hinders their practical applications. Herein, we proposed a Fabry-Pérot (F-P) cavity formed by coupling an atomically thin WS2film with a silicon hole matrix to enhance the SH emission. A maximum enhancement (∼1580 times) is achieved by tuning the excitation wavelength to be resonant with the microcavity modes. The giant enhancement is attributed to the strong electric field enhancement in the F-P cavity and the oscillator strength enhancement of excitons from suspended WS2. Moreover, directional SH emission (divergence angle ∼5°) is obtained benefiting from the resonance of the F-P microcavity. Our research results can provide a practical sketch to develop both high-efficiency and directional nonlinear optical devices for silicon-based on-chip integration optics.
AB - Two-dimensional transition metal dichalcogenides (TMDs) possess large second-order optical nonlinearity, making them ideal candidates for miniaturized on-chip frequency conversion devices, all-optical interconnection, and optoelectronic integration components. However, limited by subnanometer thickness, the monolayer TMD exhibits low second harmonic generation (SHG) conversion efficiency (<0.1%) and poor directionality, which hinders their practical applications. Herein, we proposed a Fabry-Pérot (F-P) cavity formed by coupling an atomically thin WS2film with a silicon hole matrix to enhance the SH emission. A maximum enhancement (∼1580 times) is achieved by tuning the excitation wavelength to be resonant with the microcavity modes. The giant enhancement is attributed to the strong electric field enhancement in the F-P cavity and the oscillator strength enhancement of excitons from suspended WS2. Moreover, directional SH emission (divergence angle ∼5°) is obtained benefiting from the resonance of the F-P microcavity. Our research results can provide a practical sketch to develop both high-efficiency and directional nonlinear optical devices for silicon-based on-chip integration optics.
KW - WS
KW - divergence angle
KW - microcavity
KW - second harmonic generation (SHG)
KW - transition metal dichalcogenide (TMD)
UR - http://www.scopus.com/inward/record.url?scp=85137381500&partnerID=8YFLogxK
U2 - 10.1021/acsnano.2c03033
DO - 10.1021/acsnano.2c03033
M3 - Article
C2 - 35984986
AN - SCOPUS:85137381500
SN - 1936-0851
VL - 16
SP - 13933
EP - 13941
JO - ACS Nano
JF - ACS Nano
IS - 9
ER -
Shi J, Wu X, Wu K, Zhang S, Sui X, Du W et al. Giant Enhancement and Directional Second Harmonic Emission from Monolayer WS2on Silicon Substrate via Fabry-Pérot Micro-Cavity. ACS Nano. 2022 Sept 27;16(9):13933-13941. doi: 10.1021/acsnano.2c03033
