Extreme nonlinear strong-field photoemission from carbon nanotubes

Chi Li; Ke Chen; Mengxue Guan; Xiaowei Wang; Xu Zhou; Feng Zhai; Jiayu Dai; Zhenjun Li; Zhipei Sun; Sheng Meng; Kaihui Liu; Qing Dai

doi:10.1038/s41467-019-12797-z

Extreme nonlinear strong-field photoemission from carbon nanotubes

Chi Li, Ke Chen, Mengxue Guan, Xiaowei Wang, Xu Zhou, Feng Zhai, Jiayu Dai, Zhenjun Li, Zhipei Sun, Sheng Meng, Kaihui Liu, Qing Dai^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

2 Citations (Scopus)

40 Downloads (Pure)

Abstract

Strong-field photoemission produces attosecond (10⁻¹⁸ s) electron pulses that are synchronized to the waveform of the incident light. This nonlinear photoemission lies at the heart of current attosecond technologies. Here we report a new nonlinear photoemission behaviour—the nonlinearity in strong-field regime sharply increases (approaching 40th power-law scaling), making use of sub-nanometric carbon nanotubes and 800 nm pulses. As a result, the carrier-envelope phase sensitive photoemission current shows a greatly improved modulation depth of up to 100% (with a total modulation current up to 2 nA). The calculations reveal that the behaviour is an interplay of valence band optical-field emission with charge interaction, and the nonlinear dynamics can be tunable by changing the bandgap of carbon nanotubes. The extreme nonlinear photoemission offers a new means of producing extreme temporal-spatial resolved electron pulses, and provides a new design philosophy for attosecond electronics and photonics.

Original language	English
Article number	4891
Journal	Nature Communications
Volume	10
Issue number	1
DOIs	https://doi.org/10.1038/s41467-019-12797-z
Publication status	Published - 1 Dec 2019
MoE publication type	A1 Journal article-refereed

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10.1038/s41467-019-12797-zLicence: CC BY

ELEC_Sun_Extreme_NCFinal published version, 1.02 MBLicence: CC BY

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Projects

1 Finished
6 Active

ATOP: Atomically-engineered nonlinear photonics with two-dimensional layered material superlattices

Sun, Z. & Wang, Y.

01/09/2019 → 31/10/2024

Project: EU: ERC grants

A-Photonics

Pyymaki Perros, A., Rajamanickam, R., Sun, Z., Hedberg, D., Lau Kuen Yao, L., Kim, M. & Dai, Y.

01/01/2019 → 31/05/2021

Project: Business Finland: New business from research ideas (TUTLI)

PREIN: Photonics Research and Innovation

Mäkelä, K.

01/01/2019 → 31/12/2022

Project: Academy of Finland: Other research funding

Cite this

Li, C., Chen, K., Guan, M., Wang, X., Zhou, X., Zhai, F., ... Dai, Q. (2019). Extreme nonlinear strong-field photoemission from carbon nanotubes. Nature Communications, 10(1), [4891]. https://doi.org/10.1038/s41467-019-12797-z

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abstract = "Strong-field photoemission produces attosecond (10−18 s) electron pulses that are synchronized to the waveform of the incident light. This nonlinear photoemission lies at the heart of current attosecond technologies. Here we report a new nonlinear photoemission behaviour—the nonlinearity in strong-field regime sharply increases (approaching 40th power-law scaling), making use of sub-nanometric carbon nanotubes and 800 nm pulses. As a result, the carrier-envelope phase sensitive photoemission current shows a greatly improved modulation depth of up to 100{\%} (with a total modulation current up to 2 nA). The calculations reveal that the behaviour is an interplay of valence band optical-field emission with charge interaction, and the nonlinear dynamics can be tunable by changing the bandgap of carbon nanotubes. The extreme nonlinear photoemission offers a new means of producing extreme temporal-spatial resolved electron pulses, and provides a new design philosophy for attosecond electronics and photonics.",

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AU - Guan, Mengxue

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AU - Zhai, Feng

AU - Dai, Jiayu

AU - Li, Zhenjun

AU - Sun, Zhipei

AU - Meng, Sheng

AU - Liu, Kaihui

AU - Dai, Qing

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