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Optical Actuation of Nanoparticle-Loaded Liquid-Liquid Interfaces for Active Photonics.

ABSTRACT: Liquid-liquid interfaces hold the potential to serve as versatile platforms for dynamic processes, due to their inherent fluidity and capacity to accommodate surface-active materials. This study explores laser-driven actuation of liquid-liquid interfaces with and without loading of gold nanoparticles and further exploits the laser-actuated interfaces with nanoparticles for tunable photonics. Upon laser exposure, gold nanoparticles were rearranged along the interface, enabling the reconfigurable, small-aperture modulation of light transmission and the tunable lensing effect. Adapting the principles of optical and optothermal tweezers, we interpreted the underlying mechanisms of actuation and modulation as a synergy of optomechanical and optothermal effects. Our findings provide an analytical framework for understanding microscopic interfacial behaviors, contributing to potential applications in tunable photonics and interfacial material engineering.

SUBMITTER: Kim Y

PROVIDER: S-EPMC11299852 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature

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Optical Actuation of Nanoparticle-Loaded Liquid-Liquid Interfaces for Active Photonics.

Kim Youngsun Y Yao Kan K Ponce Carolina C Zheng Yuebing Y

ACS nano 20240608 24

Liquid-liquid interfaces hold the potential to serve as versatile platforms for dynamic processes, due to their inherent fluidity and capacity to accommodate surface-active materials. This study explores laser-driven actuation of liquid-liquid interfaces with and without loading of gold nanoparticles and further exploits the laser-actuated interfaces with nanoparticles for tunable photonics. Upon laser exposure, gold nanoparticles were rearranged along the interface, enabling the reconfigurable, ...[more]

PMID: 38850254

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