Tunable Grain Orientation of Chalcogenide Film and Its Application for Second Harmonic Generation

Yun Meng; Jitendra K. Behera; Shancheng Wang; Minghui Jiang; Jincheng Lin; Jingsong Wei; Yang Wang; Tun Cao; Yi Long

doi:10.1021/acsami.0c05082

Tunable Grain Orientation of Chalcogenide Film and Its Application for Second Harmonic Generation

Yun Meng
, Jitendra K. Behera
, Shancheng Wang
, Minghui Jiang
, Jincheng Lin
, Jingsong Wei
, Yang Wang^*
, Tun Cao^*
, Yi Long^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

9 Citations (Scopus)

Abstract

To date, the second harmonic generation (SHG) has a great effect on photonic devices. However, it is a formidable challenge to achieve reconfigurable SHG. Hereby, we experimentally demonstrate the SHG response from the oriented Ge₂Sb₂Te₅ (GST) grains induced by polarized laser pulses for the first time. The orientation of GST grains is found to be perpendicular to the polarization direction of the pump laser. Such unique ordered structures result in a periodic change of SHG intensity with the input polarization angle of the pump laser rotating every 180°. These findings may pave avenues for generating nonlinear optical sources with a simple process, scalability, and switchable functionality.

Original language	English
Pages (from-to)	29953-29958
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	12
Issue number	26
Early online date	9 Jun 2020
DOIs	https://doi.org/10.1021/acsami.0c05082
Publication status	Published - 1 Jul 2020

User-Defined Keywords

phase-change film
polarized laser pulse
second harmonic generation
oriented grain
linear dichroism

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10.1021/acsami.0c05082

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@article{32b6b654f6f94ab0a27bd34df943831e,

title = "Tunable Grain Orientation of Chalcogenide Film and Its Application for Second Harmonic Generation",

abstract = "To date, the second harmonic generation (SHG) has a great effect on photonic devices. However, it is a formidable challenge to achieve reconfigurable SHG. Hereby, we experimentally demonstrate the SHG response from the oriented Ge2Sb2Te5 (GST) grains induced by polarized laser pulses for the first time. The orientation of GST grains is found to be perpendicular to the polarization direction of the pump laser. Such unique ordered structures result in a periodic change of SHG intensity with the input polarization angle of the pump laser rotating every 180°. These findings may pave avenues for generating nonlinear optical sources with a simple process, scalability, and switchable functionality.",

keywords = "phase-change film, polarized laser pulse, second harmonic generation, oriented grain, linear dichroism",

author = "Yun Meng and Behera, \{Jitendra K.\} and Shancheng Wang and Minghui Jiang and Jincheng Lin and Jingsong Wei and Yang Wang and Tun Cao and Yi Long",

note = "Publisher Copyright: {\textcopyright} 2020 American Chemical Society. Funding Information: This work was partially supported by the National Natural Science Foundation of China (51472258, 51672292, and 61627826), International Science and Technology Cooperation Program of China (2016YFE0110600) and National Key Research and Development Program of China (2017YFB0701703), National Research Foundation, Prime Minister{\textquoteright}s Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) program.",

year = "2020",

month = jul,

day = "1",

doi = "10.1021/acsami.0c05082",

language = "English",

volume = "12",

pages = "29953--29958",

journal = "ACS Applied Materials and Interfaces",

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TY - JOUR

T1 - Tunable Grain Orientation of Chalcogenide Film and Its Application for Second Harmonic Generation

AU - Meng, Yun

AU - Behera, Jitendra K.

AU - Wang, Shancheng

AU - Jiang, Minghui

AU - Lin, Jincheng

AU - Wei, Jingsong

AU - Wang, Yang

AU - Cao, Tun

AU - Long, Yi

N1 - Publisher Copyright: © 2020 American Chemical Society. Funding Information: This work was partially supported by the National Natural Science Foundation of China (51472258, 51672292, and 61627826), International Science and Technology Cooperation Program of China (2016YFE0110600) and National Key Research and Development Program of China (2017YFB0701703), National Research Foundation, Prime Minister’s Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) program.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - To date, the second harmonic generation (SHG) has a great effect on photonic devices. However, it is a formidable challenge to achieve reconfigurable SHG. Hereby, we experimentally demonstrate the SHG response from the oriented Ge2Sb2Te5 (GST) grains induced by polarized laser pulses for the first time. The orientation of GST grains is found to be perpendicular to the polarization direction of the pump laser. Such unique ordered structures result in a periodic change of SHG intensity with the input polarization angle of the pump laser rotating every 180°. These findings may pave avenues for generating nonlinear optical sources with a simple process, scalability, and switchable functionality.

AB - To date, the second harmonic generation (SHG) has a great effect on photonic devices. However, it is a formidable challenge to achieve reconfigurable SHG. Hereby, we experimentally demonstrate the SHG response from the oriented Ge2Sb2Te5 (GST) grains induced by polarized laser pulses for the first time. The orientation of GST grains is found to be perpendicular to the polarization direction of the pump laser. Such unique ordered structures result in a periodic change of SHG intensity with the input polarization angle of the pump laser rotating every 180°. These findings may pave avenues for generating nonlinear optical sources with a simple process, scalability, and switchable functionality.

KW - phase-change film

KW - polarized laser pulse

KW - second harmonic generation

KW - oriented grain

KW - linear dichroism

UR - https://www.scopus.com/pages/publications/85087643343

U2 - 10.1021/acsami.0c05082

DO - 10.1021/acsami.0c05082

M3 - Journal article

C2 - 32515938

AN - SCOPUS:85087643343

SN - 1944-8244

VL - 12

SP - 29953

EP - 29958

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 26

ER -

Tunable Grain Orientation of Chalcogenide Film and Its Application for Second Harmonic Generation

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