Article
Chemistry, Multidisciplinary
Xinyuan Xie, Zilu Zhang, Qing Jiang, Suiting Zheng, Yang Yun, Hao Wu, Chunbao Li, Feng Tian, Meng Su, Fengyu Li
Summary: The study demonstrates the use of stretchable photonic crystals to achieve rainbow structural colors and differential fluorescence enhancement for efficient multianalyte detection.
Article
Chemistry, Multidisciplinary
Seungmin Nam, Dahee Wang, Chaehyun Kwon, Sang Hyun Han, Su Seok Choi
Summary: Structural color can be produced by nanoperiodic dielectric structures using soft materials, and stretchable chiral photonic elastomers (CPEs) can self-organize into a helical nanostructure, with the chiral nanostructural color controlled by stretching. This study presents stretchable CPEs with simultaneous multicolor control, including electrical control, and demonstrates various device applications such as multiarrayed color binning and chameleon-like photonic e-skin. The ability to control the separation of biomimetic multicolors in stretchable photonic systems improves the functionality of potential photonic applications.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jing Qian, Srikanth Kolagatla, Aleksejus Pacalovas, Xia Zhang, Larisa Florea, A. Louise Bradley, Colm Delaney
Summary: Two photon polymerization using direct laser writing is a growing field of research that focuses on incorporating soft, responsive polymers to microstructures for added value. By moving to the micron-scale, the speed of actuation for stimuli-responsive materials can be significantly increased. This study demonstrates the fabrication of submicron 2D photonic structures using a vapor-responsive photoresist and evaluates their feasibility as vapor sensors. The structures show reproducible and reversible spectral and structural color changes when exposed to different vapors.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Optics
Minjae Lee, Gwansik Kim, Yeongju Jung, Kyung Rok Pyun, Jinwoo Lee, Byung-Wook Kim, Seung Hwan Ko
Summary: Radiative cooling is a passive cooling technology that does not require energy consumption and is capable of dissipating waste heat into the surroundings. Recent advancements in photonic technologies have enabled the use of radiative cooling during daytime. This review article discusses the fundamental principles of thermodynamic heat transfer, various photonic structures, and their integration with new functionalities to enhance the efficiency of radiative cooling. Commercial applications and future perspectives are also summarized.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Optics
C. Catala-Lahoz, D. Perez-Lopez, T. Huy-Ho, J. Capmany
Summary: This paper presents an optimization technique for a fully tunable ring-assisted Mach-Zehnder interferometer filter. The proposed filter design has exceptional reconfigurability, allowing for different filter architectures and flexible filtering requirements.
Article
Chemistry, Physical
Toshimitsu Kanai, Sato Nakagawa, Hikaru Takeshima, Yuna Hirano
Summary: This article introduces a colored angle-independent amorphous phase of monodisperse colloids, which can change color by adjusting the particle volume fraction, and can be immobilized in hydrogel films to preserve spectral properties, and the color can be tuned by changing the ethanol concentration.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Wenxin Zhang, Lili Qiu, Kenneth J. Shea, Jing Fan, Yangyang Liu, Wenxiang Zheng, Min Xue, Wenfang Liu, Zhibin Xu, Xiu-tian-feng E, Xiao Dong, Yu Qiao, Zihui Meng
Summary: This study analyzes the structural color of photonic crystals using the HSB color space and demonstrates that the analysis based on hue value (H) can achieve accuracy comparable to spectrum analysis. Quantitative analysis of stimulus-responsive PhCs structural color is also possible using this method. This analysis method provides a convenient technology for general users.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Jiong Guo, Zihui Meng, Yu Qiao, Bingquan Li
Summary: Photonic crystal is a powerful technique for regulating electromagnetic waves, with features like structure designability and dynamic adjustability, and great application value. This paper visualizes colors on the Ostwald color model, analyzes color differences of each color patch group through the minimum color difference model, and verifies the manipulation laws of particle size, temperature, and humidity on the color change of photonic crystal hydrogel.
Article
Chemistry, Multidisciplinary
Yi-Yang Zhan, Daisuke Ogawa, Koki Sano, Xiang Wang, Fumito Araoka, Nobuyuki Sakai, Takayoshi Sasaki, Yasuhiro Ishida
Summary: The article presents a reconfigurable photonic crystal that exhibits single-peak and double-peak structural colors and allows for reversible state transitions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Xin Zhang, Xiu Gong, Binbin Shang
Summary: Colorimetric concentration detection based on photonic crystals has attracted considerable attention due to its significant color changes in response to external stimuli. However, the traditional photonic crystal assembled by colloid particles is rarely used for concentration detection due to the occupation of interparticle voids by solute. In this study, photonic crystals assembled by mesoporous SiO2 particles were prepared and used as a colorimetric indicator for solution concentration. The relation between wavelength shifts and solution concentrations could be used for quantitative concentration detection.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Feika Bian, Lingyu Sun, Hanxu Chen, Yu Wang, Li Wang, Luoran Shang, Yuanjin Zhao
Summary: In this research, a novel approach of integrating perovskite nanocrystals (PNs) into PhC microspheres for information security is presented. By encapsulating PNs in PhC microspheres, binary optical signals are generated as coding information. The arrays of PNs-integrated PhC microspheres with different codes, placed in a treated PDMS substrate, can converge moisture and prevent mutual contamination. Additionally, the fluorescence of PNs inside PhC microspheres can respond reversibly to environmental moisture. These features highlight the significant value of PNs-integrated PhC microsphere arrays in the field of information security.
Article
Chemistry, Physical
Zekun Zhang, Boru Wei, Dongpeng Yang, Dekun Ma, Shaoming Huang
Summary: In this work, a new photonic crystal hydrogel sensor has been developed for high-precision, selective, and visual detection of hydrofluoric acid (HF). The sensor utilizes a selective etching-induced swelling mechanism and is fabricated with silica/water/hydroxyethyl acrylate and non-closely packed structures. It demonstrates visually and spectrally sensing capabilities for HF (0-10 mM) by detecting the variation of reflection wavelength and structural colors. The sensor exhibits high sensing precision, outstanding selectivity, and a low detection limit of 0.1 mM, while also being tailorable, portable, easy-to-operate, and cost-effective (<0.01 $/sensor).
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Optics
Atsushi Ono, Kazuma Hashimoto, Nobukazu Teranishi
Summary: A plasmonic diffraction structure combined with deep trench isolation filled with reflective metal is proposed to enhance the near-infrared sensitivity of image sensors. The silver grating on the light-illuminated surface of a CMOS image sensor was investigated to clarify the mechanism of NIR sensitivity enhancement. Incident NIR light effectively diffracted as propagating light to the sensor silicon layer under quasi-resonant conditions of surface plasmon polaritons.
Article
Optics
Hui Liu, Zhijun Sun
Summary: A narrow-band plasmonic filter with low sidebands in the VIS-NIR regime is proposed, consisting of two closely spaced, optically thin layers of asymmetric metallic nanoslit arrays. The filtering characteristics are mainly due to intercoupled local plasmon resonance (LPR) modes and in-plane waveguiding surface plasmon resonance (SPR) modes. The asymmetry of the nanoslits helps improve the quality factor of intercoupled LPR mode and reduce the passband width.
Article
Engineering, Electrical & Electronic
Jongheun Lee, Juseop Lee
Summary: This article presents a complete method to design transmission-line reflectionless filters, allowing for an infinite frequency range of reflectionless response. It can be applied to various filter prototypes and is not limited by filter order or response type.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2022)
Article
Materials Science, Multidisciplinary
E. -C. Jeon, J. -R. Lee, D. -H. Choi, H. -J. Choi, T. -J. Je
EXPERIMENTAL MECHANICS
(2017)
Article
Engineering, Manufacturing
Dae-Hee Choi, Je-Ryung Lee, Na-Ri Kang, Tae-Jin Je, Ju-Young Kim, Eun-chae Jeon
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2017)
Article
Chemistry, Analytical
Jeong-ah Kim, Je-Ryung Lee, Tae-Jin Je, Eun-chae Jeon, Wonhee Lee
ANALYTICAL CHEMISTRY
(2018)
Article
Optics
Shin-woong Park, Gyunam Park, Youngbaek Kim, Joong Hwee Cho, Junho Lee, Hwi Kim
Article
Optics
Shin-Woong Park, Byeong Geon You, Gyunam Park, Youngbaek Kim, Junho Lee, Joong Hwee Cho, Yun Yi, Hwi Kim
Article
Materials Science, Multidisciplinary
Oh Min Kwon, Jongho Won, Jong-hyoung Kim, Changhyun Cho, Eun-chae Jeon, Dongil Kwon
METALS AND MATERIALS INTERNATIONAL
(2019)
Article
Multidisciplinary Sciences
So-Yeon Lee, Kyung Ryoul Park, Sung-Gyu Kang, Ji-Hoon Lee, Eun-chae Jeon, Cheol-Hwee Shim, Jae-Pyoung Ahn, Dong-Ik Kim, Heung Nam Han, Young-Chang Joo, Changsoon Kim, In-Suk Choi
NATURE COMMUNICATIONS
(2019)
Article
Biochemical Research Methods
Jeong-ah Kim, Aditya Kommajosula, Yo-han Choi, Je-Ryung Lee, Eun-chae Jeon, Baskar Ganapathysubramanian, Wonhee Lee
Article
Optics
Jun Ho Lee, Byeong Geon You, Shin-Woong Park, Hwi Kim
Article
Green & Sustainable Science & Technology
Je-Ryung Lee, Seung Hwan Moon, Tae-Jin Je, Doo-Sun Choi, Hwi Kim, Eun-chae Jeon
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2020)
Article
Green & Sustainable Science & Technology
Hwan-Jin Choi, Changsoon Cho, Sangwon Woo, Jung-Yong Lee, Yeong-Eun Yoo, Minwoo Jeon, Geon-Hee Kim, Tae-Jin Je, Eun-chae Jeon
Summary: Various structural patterns can control light properties, with a compound parabolic concentrator enhancing solar cell efficiency. A novel manufacturing process for a small CPC device was developed utilizing ultra-fine planing and injection molding for mass production. The efficiency of solar cells was enhanced by about 10% with the CPC device.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2021)
Article
Optics
Sungjae Park, Jonghyun Lee, Wonwoo Choi, Shin-woong Park, Hwi Kim
Summary: This article discusses the synthesis of depth-map computer-generated holograms using a hybrid smoothing method to alleviate inter-layer edge artifacts, resulting in holographic images that are closer to the ground truth image.
Proceedings Paper
Optics
Jun Ho Lee, Junhee Jeong, Chris Park, Byeong Geon You, Shin-Woong Park, Hwi Kim
METROLOGY, INSPECTION, AND PROCESS CONTROL FOR MICROLITHOGRAPHY XXXIII
(2019)
Article
Optics
Je-Ryung Lee, Tae-Jin Je, Sangwon Woo, Yeong-Eun Yoo, Jun-Ho Jeong, Eun-chae Jeon, Hwi Kim
CURRENT OPTICS AND PHOTONICS
(2018)
Article
Biochemical Research Methods
Seungwoo Shin, Jihye Kim, Je-Ryung Lee, Eun-chae Jeon, Tae-Jin Je, Wonhee Lee, YongKeun Park
