Probing Inherent Optical Anisotropy in Substrates via Direct Nanoimaging of Mie Scattering

Hwi Je Woo; Jaewon Han; Sangmin Ji; Bong Gyu Shin; Seong Hun Park; Sung Gyu Lee; Chang Won Lee; Euyheon Hwang; Deok Soo Kim; Soobong Choi; Mun Seok Jeong; Gi Ra Yi; Junki Kim; Young Jae Song

doi:10.1021/acsnano.4c01336

Probing Inherent Optical Anisotropy in Substrates via Direct Nanoimaging of Mie Scattering

Hwi Je Woo
, Jaewon Han
, Sangmin Ji
, Bong Gyu Shin
, Seong Hun Park
, Sung Gyu Lee
, Chang Won Lee
, Euyheon Hwang
, Deok Soo Kim
, Soobong Choi
, Mun Seok Jeong
, Gi Ra Yi
, Junki Kim
, Young Jae Song

SKKU Advanced Institute of Nano Technology (SAINT)

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

5 Scopus citations

Abstract

In this study, we investigated the optical properties of a transition metal dichalcogenide (TMD) substrate via Mie-scattering-induced surface analysis (MISA). Employing near-field optical microscopy and finite-difference time-domain (FDTD) simulations, we systemically prove and directly visualize the Mie scattering of superspherical gold nanoparticles (s-AuNPs) at the nanoscale. Molybdenum disulfide substrates exhibited optical isotropy, while rhenium disulfide (ReS₂) substrates showed anisotropic behavior attributed to the interaction with incident light’s electric field. Our study revealed substantial anisotropic trends in Mie scattering, particularly in the near-infrared energy range, with ReS₂ exhibiting more pronounced spectral and angular responses in satellite peaks. Our results emphasize the application of Mie scattering, exploring the optical properties of substrates and contributing to a deeper understanding of nanoscale light-matter interactions.

Original language	English
Pages (from-to)	12333-12340
Number of pages	8
Journal	ACS Nano
Volume	18
Issue number	19
DOIs	https://doi.org/10.1021/acsnano.4c01336
State	Published - 14 May 2024

Keywords

anisotropy
Mie scattering
scattering-type scanning near-field optical microscope
substrate
superspherical-AuNP

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10.1021/acsnano.4c01336

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title = "Probing Inherent Optical Anisotropy in Substrates via Direct Nanoimaging of Mie Scattering",

abstract = "In this study, we investigated the optical properties of a transition metal dichalcogenide (TMD) substrate via Mie-scattering-induced surface analysis (MISA). Employing near-field optical microscopy and finite-difference time-domain (FDTD) simulations, we systemically prove and directly visualize the Mie scattering of superspherical gold nanoparticles (s-AuNPs) at the nanoscale. Molybdenum disulfide substrates exhibited optical isotropy, while rhenium disulfide (ReS2) substrates showed anisotropic behavior attributed to the interaction with incident light{\textquoteright}s electric field. Our study revealed substantial anisotropic trends in Mie scattering, particularly in the near-infrared energy range, with ReS2 exhibiting more pronounced spectral and angular responses in satellite peaks. Our results emphasize the application of Mie scattering, exploring the optical properties of substrates and contributing to a deeper understanding of nanoscale light-matter interactions.",

keywords = "anisotropy, Mie scattering, scattering-type scanning near-field optical microscope, substrate, superspherical-AuNP",

author = "Woo, \{Hwi Je\} and Jaewon Han and Sangmin Ji and Shin, \{Bong Gyu\} and Park, \{Seong Hun\} and Lee, \{Sung Gyu\} and Lee, \{Chang Won\} and Euyheon Hwang and Kim, \{Deok Soo\} and Soobong Choi and Jeong, \{Mun Seok\} and Yi, \{Gi Ra\} and Junki Kim and Song, \{Young Jae\}",

note = "Publisher Copyright: {\textcopyright} 2024 American Chemical Society",

year = "2024",

month = may,

day = "14",

doi = "10.1021/acsnano.4c01336",

language = "English",

volume = "18",

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T1 - Probing Inherent Optical Anisotropy in Substrates via Direct Nanoimaging of Mie Scattering

AU - Woo, Hwi Je

AU - Han, Jaewon

AU - Ji, Sangmin

AU - Shin, Bong Gyu

AU - Park, Seong Hun

AU - Lee, Sung Gyu

AU - Lee, Chang Won

AU - Hwang, Euyheon

AU - Kim, Deok Soo

AU - Choi, Soobong

AU - Jeong, Mun Seok

AU - Yi, Gi Ra

AU - Kim, Junki

AU - Song, Young Jae

PY - 2024/5/14

Y1 - 2024/5/14

N2 - In this study, we investigated the optical properties of a transition metal dichalcogenide (TMD) substrate via Mie-scattering-induced surface analysis (MISA). Employing near-field optical microscopy and finite-difference time-domain (FDTD) simulations, we systemically prove and directly visualize the Mie scattering of superspherical gold nanoparticles (s-AuNPs) at the nanoscale. Molybdenum disulfide substrates exhibited optical isotropy, while rhenium disulfide (ReS2) substrates showed anisotropic behavior attributed to the interaction with incident light’s electric field. Our study revealed substantial anisotropic trends in Mie scattering, particularly in the near-infrared energy range, with ReS2 exhibiting more pronounced spectral and angular responses in satellite peaks. Our results emphasize the application of Mie scattering, exploring the optical properties of substrates and contributing to a deeper understanding of nanoscale light-matter interactions.

AB - In this study, we investigated the optical properties of a transition metal dichalcogenide (TMD) substrate via Mie-scattering-induced surface analysis (MISA). Employing near-field optical microscopy and finite-difference time-domain (FDTD) simulations, we systemically prove and directly visualize the Mie scattering of superspherical gold nanoparticles (s-AuNPs) at the nanoscale. Molybdenum disulfide substrates exhibited optical isotropy, while rhenium disulfide (ReS2) substrates showed anisotropic behavior attributed to the interaction with incident light’s electric field. Our study revealed substantial anisotropic trends in Mie scattering, particularly in the near-infrared energy range, with ReS2 exhibiting more pronounced spectral and angular responses in satellite peaks. Our results emphasize the application of Mie scattering, exploring the optical properties of substrates and contributing to a deeper understanding of nanoscale light-matter interactions.

KW - anisotropy

KW - Mie scattering

KW - scattering-type scanning near-field optical microscope

KW - substrate

KW - superspherical-AuNP

UR - https://www.scopus.com/pages/publications/85192214105

U2 - 10.1021/acsnano.4c01336

DO - 10.1021/acsnano.4c01336

M3 - Article

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AN - SCOPUS:85192214105

SN - 1936-0851

VL - 18

SP - 12333

EP - 12340

JO - ACS Nano

JF - ACS Nano

IS - 19

ER -

Probing Inherent Optical Anisotropy in Substrates via Direct Nanoimaging of Mie Scattering

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Keywords

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