Dynamic and Wavelength-Dependent Optical Transmission Control with Uniform Bending and Recovery of Shape Memory Nanopillars

Yuanhao Xu; Stella W. Pang

doi:10.1002/adom.202402361

Dynamic and Wavelength-Dependent Optical Transmission Control with Uniform Bending and Recovery of Shape Memory Nanopillars

Yuanhao Xu, Stella W. Pang^*

^*Corresponding author for this work

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

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Abstract

In this paper, the fabrication, characterization, and investigation of the optical properties of high aspect ratio shape memory polymer (SMP) nanopillars are presented. The SMP nanopillars are fabricated using nanoimprint lithography and double-replication techniques, resulting in well-defined structures with a height of 1.3 µm and a diameter of 270 nm that can be uniformly bent across a large area. The optical transmission spectra of both straight and bent SMP nanopillars are studied. Experimental measurements, along with finite-difference time-domain simulations, reveal significant alterations in the transmission spectra due to the presence of the nanopillars. The SMP nanopillars provide a smart optical power splitting effect, enabling wavelength-dependent splitting of incident light by controlling the SMP nanopillar bending angle and direction dynamically with temperature. These findings highlight the potential of SMP nanopillars as versatile components for manipulating light in wavelength-dependent optical devices. © 2024 The Author(s). Advanced Optical Materials published by Wiley-VCH GmbH.

Original language	English
Article number	2402361
Journal	Advanced Optical Materials
Volume	13
Issue number	5
Online published	10 Oct 2024
DOIs	https://doi.org/10.1002/adom.202402361
Publication status	Published - 13 Feb 2025

Funding

This work was supported by the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. CityU11207620, CityU11207821, and CityU11205423) and the Center for Biosystems, Neuroscience, and Nanotechnology (CBNN) of City University of Hong Kong (9360148, 9380062). Open Access made possible with partial support from the Open Access Publishing Fund of the City University of Hong Kong.

Research Keywords

dynamic shape recovery
nanoimprint
shape memory polymer
tunable photonics
uniform nanopillar bending

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

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title = "Dynamic and Wavelength-Dependent Optical Transmission Control with Uniform Bending and Recovery of Shape Memory Nanopillars",

abstract = "In this paper, the fabrication, characterization, and investigation of the optical properties of high aspect ratio shape memory polymer (SMP) nanopillars are presented. The SMP nanopillars are fabricated using nanoimprint lithography and double-replication techniques, resulting in well-defined structures with a height of 1.3 µm and a diameter of 270 nm that can be uniformly bent across a large area. The optical transmission spectra of both straight and bent SMP nanopillars are studied. Experimental measurements, along with finite-difference time-domain simulations, reveal significant alterations in the transmission spectra due to the presence of the nanopillars. The SMP nanopillars provide a smart optical power splitting effect, enabling wavelength-dependent splitting of incident light by controlling the SMP nanopillar bending angle and direction dynamically with temperature. These findings highlight the potential of SMP nanopillars as versatile components for manipulating light in wavelength-dependent optical devices. {\textcopyright} 2024 The Author(s). Advanced Optical Materials published by Wiley-VCH GmbH.",

keywords = "dynamic shape recovery, nanoimprint, shape memory polymer, tunable photonics, uniform nanopillar bending",

author = "Yuanhao Xu and Pang, {Stella W.}",

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T1 - Dynamic and Wavelength-Dependent Optical Transmission Control with Uniform Bending and Recovery of Shape Memory Nanopillars

AU - Xu, Yuanhao

AU - Pang, Stella W.

PY - 2025/2/13

Y1 - 2025/2/13

N2 - In this paper, the fabrication, characterization, and investigation of the optical properties of high aspect ratio shape memory polymer (SMP) nanopillars are presented. The SMP nanopillars are fabricated using nanoimprint lithography and double-replication techniques, resulting in well-defined structures with a height of 1.3 µm and a diameter of 270 nm that can be uniformly bent across a large area. The optical transmission spectra of both straight and bent SMP nanopillars are studied. Experimental measurements, along with finite-difference time-domain simulations, reveal significant alterations in the transmission spectra due to the presence of the nanopillars. The SMP nanopillars provide a smart optical power splitting effect, enabling wavelength-dependent splitting of incident light by controlling the SMP nanopillar bending angle and direction dynamically with temperature. These findings highlight the potential of SMP nanopillars as versatile components for manipulating light in wavelength-dependent optical devices. © 2024 The Author(s). Advanced Optical Materials published by Wiley-VCH GmbH.

AB - In this paper, the fabrication, characterization, and investigation of the optical properties of high aspect ratio shape memory polymer (SMP) nanopillars are presented. The SMP nanopillars are fabricated using nanoimprint lithography and double-replication techniques, resulting in well-defined structures with a height of 1.3 µm and a diameter of 270 nm that can be uniformly bent across a large area. The optical transmission spectra of both straight and bent SMP nanopillars are studied. Experimental measurements, along with finite-difference time-domain simulations, reveal significant alterations in the transmission spectra due to the presence of the nanopillars. The SMP nanopillars provide a smart optical power splitting effect, enabling wavelength-dependent splitting of incident light by controlling the SMP nanopillar bending angle and direction dynamically with temperature. These findings highlight the potential of SMP nanopillars as versatile components for manipulating light in wavelength-dependent optical devices. © 2024 The Author(s). Advanced Optical Materials published by Wiley-VCH GmbH.

KW - dynamic shape recovery

KW - nanoimprint

KW - shape memory polymer

KW - tunable photonics

KW - uniform nanopillar bending

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U2 - 10.1002/adom.202402361

DO - 10.1002/adom.202402361

M3 - RGC 21 - Publication in refereed journal

SN - 2195-1071

VL - 13

JO - Advanced Optical Materials

JF - Advanced Optical Materials

IS - 5

M1 - 2402361

ER -

Dynamic and Wavelength-Dependent Optical Transmission Control with Uniform Bending and Recovery of Shape Memory Nanopillars

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GRF: Microwells with Integrated Plasmonic Sensors and Narrow Channels to Study Cell Passage

GRF: Three-Dimensional Microposts Covered with Nanostructures for Circulating Tumor Cell and Small Molecule Detection

GRF: Control of Neural Growth and Connectivity in Engineered 2D and 3D Platforms

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Dynamic and Wavelength-Dependent Optical Transmission Control with Uniform Bending and Recovery of Shape Memory Nanopillars

Abstract

Funding

Research Keywords

Publisher's Copyright Statement

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GRF: Microwells with Integrated Plasmonic Sensors and Narrow Channels to Study Cell Passage

GRF: Three-Dimensional Microposts Covered with Nanostructures for Circulating Tumor Cell and Small Molecule Detection

GRF: Control of Neural Growth and Connectivity in Engineered 2D and 3D Platforms

Cite this