Ultrashort laser pulse doubling by metal-halide perovskite multiple quantum wells

Jia Guo; Tanghao Liu; Mingjie Li; Chao Liang; Kaiyang Wang; Guo Hong; Yuxin Tang; Guankui Long; Siu-Fung Yu; Tae-Woo Lee; Wei Huang; Guichuan Xing

doi:10.1038/s41467-020-17096-6

Ultrashort laser pulse doubling by metal-halide perovskite multiple quantum wells

Jia Guo
, Tanghao Liu
, Mingjie Li^*
, Chao Liang
, Kaiyang Wang
, Guo Hong
, Yuxin Tang
, Guankui Long
, Siu-Fung Yu
, Tae-Woo Lee
, Wei Huang
, Guichuan Xing^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

77 Citations (Scopus)

47 Downloads (CityUHK Scholars)

Abstract

Multiple ultrashort laser pulses are widely used in optical spectroscopy, optoelectronic manipulation, optical imaging and optical signal processing etc. The laser pulse multiplication, so far, is solely realized by using the optical setups or devices to modify the output laser pulse from the optical gain medium. The employment of these external techniques is because the gain medium itself is incapable of modifying or multiplying the generated laser pulse. Herein, with single femtosecond laser pulse excitation, we achieve the double-pulsed stimulated emission with pulse duration of around 40 ps and pulse interval of around 70 ps from metal-halide perovskite multiple quantum wells. These unique stimulated emissions originate from one fast vertical and the other slow lateral high-efficiency carrier funneling from low-dimensional to high-dimensional quantum wells. Furthermore, such gain medium surprisingly possesses nearly Auger-free stimulated emission. These insights enable us a fresh approach to multiple the ultrashort laser pulse by gain medium. © 2020, The Author(s).

Original language	English
Article number	3361
Journal	Nature Communications
Volume	11
Online published	17 Jul 2020
DOIs	https://doi.org/10.1038/s41467-020-17096-6
Publication status	Published - 2020
Externally published	Yes

Funding

We thank Professor T.C. Sum from Nanyang Technological University for providing some experimental facilities as well as for scientific discussions. The authors are grateful to the start-up fund (P0031122) from the Hong Kong Polytechnic University, the Macau Science and Technology Development Funds (FDCT-116/2016/A3, FDCT-091/2017/A2, and 014/2017/AMJ), the Research Funds (SRG2016-00087-FST and MYRG2018-00148-IAPME) from University of Macau and the Natural Science Foundation of China (61605073, 61935017, and 91733302) for financial support of this work.

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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title = "Ultrashort laser pulse doubling by metal-halide perovskite multiple quantum wells",

abstract = "Multiple ultrashort laser pulses are widely used in optical spectroscopy, optoelectronic manipulation, optical imaging and optical signal processing etc. The laser pulse multiplication, so far, is solely realized by using the optical setups or devices to modify the output laser pulse from the optical gain medium. The employment of these external techniques is because the gain medium itself is incapable of modifying or multiplying the generated laser pulse. Herein, with single femtosecond laser pulse excitation, we achieve the double-pulsed stimulated emission with pulse duration of around 40 ps and pulse interval of around 70 ps from metal-halide perovskite multiple quantum wells. These unique stimulated emissions originate from one fast vertical and the other slow lateral high-efficiency carrier funneling from low-dimensional to high-dimensional quantum wells. Furthermore, such gain medium surprisingly possesses nearly Auger-free stimulated emission. These insights enable us a fresh approach to multiple the ultrashort laser pulse by gain medium. {\textcopyright} 2020, The Author(s).",

author = "Jia Guo and Tanghao Liu and Mingjie Li and Chao Liang and Kaiyang Wang and Guo Hong and Yuxin Tang and Guankui Long and Siu-Fung Yu and Tae-Woo Lee and Wei Huang and Guichuan Xing",

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T1 - Ultrashort laser pulse doubling by metal-halide perovskite multiple quantum wells

AU - Guo, Jia

AU - Liu, Tanghao

AU - Li, Mingjie

AU - Liang, Chao

AU - Wang, Kaiyang

AU - Hong, Guo

AU - Tang, Yuxin

AU - Long, Guankui

AU - Yu, Siu-Fung

AU - Lee, Tae-Woo

AU - Huang, Wei

AU - Xing, Guichuan

PY - 2020

Y1 - 2020

N2 - Multiple ultrashort laser pulses are widely used in optical spectroscopy, optoelectronic manipulation, optical imaging and optical signal processing etc. The laser pulse multiplication, so far, is solely realized by using the optical setups or devices to modify the output laser pulse from the optical gain medium. The employment of these external techniques is because the gain medium itself is incapable of modifying or multiplying the generated laser pulse. Herein, with single femtosecond laser pulse excitation, we achieve the double-pulsed stimulated emission with pulse duration of around 40 ps and pulse interval of around 70 ps from metal-halide perovskite multiple quantum wells. These unique stimulated emissions originate from one fast vertical and the other slow lateral high-efficiency carrier funneling from low-dimensional to high-dimensional quantum wells. Furthermore, such gain medium surprisingly possesses nearly Auger-free stimulated emission. These insights enable us a fresh approach to multiple the ultrashort laser pulse by gain medium. © 2020, The Author(s).

AB - Multiple ultrashort laser pulses are widely used in optical spectroscopy, optoelectronic manipulation, optical imaging and optical signal processing etc. The laser pulse multiplication, so far, is solely realized by using the optical setups or devices to modify the output laser pulse from the optical gain medium. The employment of these external techniques is because the gain medium itself is incapable of modifying or multiplying the generated laser pulse. Herein, with single femtosecond laser pulse excitation, we achieve the double-pulsed stimulated emission with pulse duration of around 40 ps and pulse interval of around 70 ps from metal-halide perovskite multiple quantum wells. These unique stimulated emissions originate from one fast vertical and the other slow lateral high-efficiency carrier funneling from low-dimensional to high-dimensional quantum wells. Furthermore, such gain medium surprisingly possesses nearly Auger-free stimulated emission. These insights enable us a fresh approach to multiple the ultrashort laser pulse by gain medium. © 2020, The Author(s).

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DO - 10.1038/s41467-020-17096-6

M3 - RGC 21 - Publication in refereed journal

C2 - 32681066

SN - 2041-1723

VL - 11

JO - Nature Communications

JF - Nature Communications

M1 - 3361

ER -

Ultrashort laser pulse doubling by metal-halide perovskite multiple quantum wells

Abstract

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