Tuning structural coloration through evanescent wave absorption at microscale concave interfaces DOI Creative Commons

Krista Hirsch,

Nathaniel Sturniolo,

Caleb H. Meredith

et al.

Published: July 12, 2023

Here, structural color generated by total internal reflection (TIR) interference at microscale concave interfaces is tuned via evanescent wave absorption dyes. Using quantitative angle-resolved spectral analysis combined with ray tracing simulation, it demonstrated that the multibounce TIR trajectories enhance efficiency of dye and usefulness in modulating reflected colors. Depending on absorbance spectrum used, amount coated interface, angle-dependent colors can be predictably altered. The use a near-infrared absorbing allows for combination overt color-shifting iridescent effects under illumination visible wavelengths covert optical-motion near-infrared. This work, which explores an innovative approach controlling reflective properties structurally colored materials, may interest both fundamental research applications such as sensors, coatings, security.

Language: Английский

Advances in Photonic Crystal Research for Structural Color DOI
Hao Chen, Jingjiang Wei, Fei Pan

et al.

Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 3, 2024

Abstract Structural color is a remarkable physical phenomenon that exists widely in nature. Unlike traditional rendering methods, they are realized mainly through micro/nanostructures interfere, diffract, scatter light, and exhibit long‐life environmental‐friendly effects. In nature, few organisms use their color‐changing system to transmit information, such as courtship, warning, or disguise. Meanwhile, some natural inorganic minerals can also structural colors. Learning from scientists have achieved large‐scale design manufacturing technology for artificial photonic crystals. Photonic crystals unique microstructure forms band gap under the action of periodic potential field, consequently causing Bragg scattering due arrangement different refractive index media within them. Because apparent ability form local photons at crystal defects, been extensively studied recent years broad application prospects fibers, optical computers, chips, other fields. this review, research, properties, applications presented, well insight into future developments

Language: Английский

Citations

8
Fabrication strategies and microscale sensing functionalities of mechanochromic colloidal photonic crystals for underwater applications DOI Open Access

Feng-Lian Qi,

Qun Li, Caifeng Ding

et al.

Microstructures, Journal Year: 2025, Volume and Issue: 5(1)

Published: Jan. 25, 2025

Mechanochromic colloidal photonic crystals (PCs), which typically integrate a self-assembled PC array with highly elastic medium, exhibit the ability to reversibly respond external mechanical stimuli by altering periodicity of structures. Nowadays, leveraging visible indications and optical signals for forces, mechanochromic PCs have been widely used in reflecting body motion, health monitoring, communications daily life. However, despite their extensive applications on land, it is vital explore potential sensing underwater, where message transmission mainly relies gestures motions. This review comprehensively examines recent advancements underwater applications. The first part introduces response mechanism PCs, emphasizing main principles that facilitate microscale. second describes fabrication strategies constructing these demonstrating various approaches establish sensors specific functionalities. final section discusses confronted challenges summarizes opportunities developing

Language: Английский

Citations

0
Smart Polymer Microspheres: Preparation, Microstructures, Stimuli-Responsive Properties, and Applications DOI

Tao Guo,

Lan Luo,

Linlin Wang

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: May 7, 2025

Smart polymer microspheres (SPMs) are a class of stimulus-responsive materials that undergo physical, chemical, or property changes in response to external stimuli, such as temperature, pH, light, and magnetic fields. In recent years, their diverse responsiveness tunable structures have enabled broad applications biomedicine, environmental protection, information encryption, other This study provides detailed review preparation methods SPMs, focusing on physical emulsification-solvent evaporation, microfluidics, electrostatic spraying well chemical approaches emulsion precipitation polymerization. Meanwhile, different types behaviors, temperature-, pH-, light-, magnetic-responsiveness, thoroughly examined. also explores the SPMs drug delivery, tissue engineering, monitoring, while discussing future technological challenges development directions this field.

Language: Английский

Citations

0
A chemotactic microrobot with integrated iridescent surface for optical-tracking DOI
Yuzhao Zhang, Jingang Wang, Haibo Yu

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 472, P. 144222 - 144222

Published: June 19, 2023

Language: Английский

Citations

9
Tuning Coloration through Evanescent Wave Absorption at Microscale Concave Interfaces DOI

Krista Hirsch,

Nathaniel Sturniolo,

Caleb H. Meredith

et al.

ACS Applied Optical Materials, Journal Year: 2023, Volume and Issue: 1(8), P. 1377 - 1386

Published: July 26, 2023

Reflected coloration can be generated in microtextured materials via multipath total internal reflection interference. Here, the reflected iridescent is tuned through dye absorption of evanescent wave that at optical interface upon reflection. Using quantitative angle-resolved spectral analysis combined with a ray tracing simulation, it demonstrated multibounce trajectories enhance efficiency and usefulness modulating colors. Depending on absorbance spectrum used amount coated interface, angle-dependent colors predictably altered. The use near-infrared absorbing allows for combination overt color-shifting effects under illumination visible wavelengths covert optical-motion wavelengths. This work, which explores an innovative approach controlling reflective properties iridescent, structurally colored materials, has relevance both fundamental research applications such as sensors, coatings, security.

Language: Английский

Citations

4
Triggering dual-mode dynamic optical responses by anchoring carbon dots on MnO2 hollow spheres DOI
Sisi Li,

Yajing Cai,

Jiaying Situ

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154871 - 154871

Published: Aug. 15, 2024

Language: Английский

Citations

1
Chameleon-inspired molecular imprinted polymer with bicolored states for visual and stable detection of diethylstilbestrol in water and food samples DOI

Dongmei Li,

Jiayue Zhou,

Zhuxin Chang

et al.

Food Chemistry, Journal Year: 2024, Volume and Issue: 469, P. 142531 - 142531

Published: Dec. 18, 2024

Language: Английский

Citations

0
Tuning structural coloration through evanescent wave absorption at microscale concave interfaces DOI Creative Commons

Krista Hirsch,

Nathaniel Sturniolo,

Caleb H. Meredith

et al.

Published: July 12, 2023

Here, structural color generated by total internal reflection (TIR) interference at microscale concave interfaces is tuned via evanescent wave absorption dyes. Using quantitative angle-resolved spectral analysis combined with ray tracing simulation, it demonstrated that the multibounce TIR trajectories enhance efficiency of dye and usefulness in modulating reflected colors. Depending on absorbance spectrum used, amount coated interface, angle-dependent colors can be predictably altered. The use a near-infrared absorbing allows for combination overt color-shifting iridescent effects under illumination visible wavelengths covert optical-motion near-infrared. This work, which explores an innovative approach controlling reflective properties structurally colored materials, may interest both fundamental research applications such as sensors, coatings, security.

Language: Английский

Citations

1