Article
Optics
Noah Hurley, Steve Kamau, Khadijah Alnasser, Usha Philipose, Jingbiao Cui, Yuankun Lin
Summary: Through holographic fabrication using nine beam interferences, we have successfully created three types of 3D GPSCs and observed their characteristic diffraction patterns. The fractional diffractions of these GPSCs result in merged diffraction spots into large-area zones.
Article
Nanoscience & Nanotechnology
Chihun Lee, Gunho Chang, Jaekyung Kim, Gayea Hyun, Gwangmin Bae, Sunae So, Jooyeong Yun, Junhwa Seong, Younghwan Yang, Dong Yong Park, Seokwoo Jeon, Junsuk Rho
Summary: Obtaining a high resolution of a three-dimensional nanostructure is crucial in nanoengineering. This study proposes a concurrent optimization method, using particle swarm optimization, to calculate the optimum phase mask for high-contrast 3D nanopatterning. By inversely designing the desired electric-field intensity map and calculating the required phase mask, this method allows for selective intensity control and fabrication of nanostructures applicable to various fields.
Article
Chemistry, Analytical
Noah Hurley, Steve Kamau, Jingbiao Cui, Yuankun Lin
Summary: This paper investigates the holographic fabrication of 3D moire photonic crystals using an integrated system of a single reflective optical element (ROE) and a spatial light modulator (SLM). By modifying the interfering beams, the interference patterns of 3D moire photonic crystals are systematically simulated and compared with the holographic structures. The holographic fabrication of phase and beam intensity ratio-dependent 3D moire photonic crystals and the discovery of superlattices modulated in the z-direction are reported, providing guidance for future pixel-by-pixel phase engineering in SLM for complex holographic structures.
Editorial Material
Optics
Kosmas L. Tsakmakidis, Tomasz P. Stefanski
Summary: Topological features, particularly nodal rings, which usually require three-dimensional structures, have been experimentally demonstrated in a simple one-dimensional photonic crystal, representing a significant breakthrough.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Multidisciplinary Sciences
Rose K. Cersonsky, James Antonaglia, Bradley D. Dice, Sharon C. Glotzer
Summary: The study conducted over 150,000 photonic band calculations for thousands of natural crystal templates and predicted 351 photonic crystal templates that can be realized, including nearly 300 previously-unreported structures. The researchers revisited primary design heuristics for PBG materials and discussed the desirable properties of photonic crystals for manipulating light.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Gui-Geng Liu, Zhen Gao, Qiang Wang, Xiang Xi, Yuan-Hang Hu, Maoren Wang, Chengqi Liu, Xiao Lin, Longjiang Deng, Shengyuan A. Yang, Peiheng Zhou, Yihao Yang, Yidong Chong, Baile Zhang
Summary: This paper introduces an experimental demonstration of exploring Chern vectors in three-dimensional topological materials. The researchers used magnetically tunable photonic crystals to achieve Chern vectors and their topological surface states. The experimental results demonstrate that Chern vectors are intrinsic bulk topological invariants in three-dimensional topological materials.
Article
Optics
George M. Williams, Charles Dupuy, Jeremy Brown, Samuel Grimm, Hooman Akhavan, J. Paul Harmon
Summary: Inkjet print additive manufacturing is used to fabricate planar gradient index (GRIN) lenslet arrays, addressing the geometric, intensity, and chromatic distortions of micro-optical lens arrays. Tailoring the optical ink feedstock refractive index spectra allows independent control over dispersion and enables achromatic performance. Digital manufacturing optimizes individual micro-optical channels with varying lenslet parameters, while print fabrication allows for opaque inter-lens baffling and aperture stops to reduce cross talk and improve resolution and contrast. These benefits are demonstrated in a light-field display testbed.
Article
Nanoscience & Nanotechnology
Petai Pip, Samuel Treves, Jamie R. Massey, Simone Finizio, Zhaochu Luo, Ales Hrabec, Valerio Scagnoli, Joerg Raabe, Laetitia Philippe, Laura J. Heyderman, Claire Donnelly
Summary: The extension of artificial spin systems to the third dimension presents opportunities for functionalities and technological applications. However, the fabrication of three-dimensional geometries with nanoscale resolution remains a major challenge. In this work, a three-dimensional tripod structure surrounded by a two-dimensional magnetic film is successfully created using two-photon lithography, deformation-free pyrolysis, and a GdCo coating. The magnetic configuration of the structure and its surroundings is mapped using soft x-ray magnetic laminography, revealing a low-energy two-in-one-out spin ice state.
Article
Optics
Shu-Feng Lin, Philippe Gentet, Di Wang, Seung-Hyun Lee, Eun-Soo Kim, Qiong-Hua Wang
Summary: The proposed full-color holographic three-dimensional display system utilizes an angular-compensating holographic optical element to achieve a simple structure for full-color display. This system eliminates the need for additional optical elements for synthesizing full-color reconstruction, leading to enhanced system integration and miniaturization.
OPTICS AND LASERS IN ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Minkyung Kim, Zihao Wang, Yihao Yang, Hau Tian Teo, Junsuk Rho, Baile Zhang
Summary: Researchers have designed and demonstrated a 3D photonic topological insulator (PTI) that exhibits self-guided topological surface states without the need for additional confinement. By removing spin-orbit coupling, this PTI opens new possibilities for manipulating photons at the outer surface of photonic bandgap materials.
NATURE COMMUNICATIONS
(2022)
Review
Materials Science, Multidisciplinary
Peiyan Shen, Yuqi Zhang, Zhongyu Cai, Ruixiang Liu, Xiaoying Xu, Ran Li, Ji-Jiang Wang, De'an Yang
Summary: PCHs, consisting of PCs and stimuli-responsive hydrogels, act as a sensing system for specific analytes by undergoing volume phase transitions upon exposure to external stimuli. The VPT of the hydrogel causes changes in the photonic stopband of the PCs, leading to shifts in Bragg diffraction peak wavelengths. This sensing mechanism allows for the development of various PCH sensors capable of detecting external stimuli.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Crystallography
Dong-Wook Lee, Dong-Hyun Kim, Jonghoon Won, Jin-Young Oh, Dae-Shik Seo
Summary: A uniform unidirectional nanostructure composed of aluminum tin oxide and ultraviolet (UV)-curable polymer was fabricated using UV-nanoimprint lithography (UV-NIL) and used as a liquid crystal alignment layer. The well-ordered nanostructure with a periodicity of 760 nm and height of 30 nm was confirmed by atomic force microscopy and line profile analysis. The compatibility of the nanopatterned hybrid film for LC device application was demonstrated through optical transmittance investigation.
Article
Engineering, Manufacturing
Jooyeon Shin, Yoon-Ho Jung, Peter V. Pikhitsa, Changnyeong Hur, Wonjin Cho, Wooik Jung, Mansoo Choi
Summary: This study demonstrates an advanced 3D nanoprinting technique based on charged aerosol jet, which enables the programming of voxel size of 3D nanostructures by replacing the mask. The researchers also show that voxel size can be further altered by controlling the distance and hole size of the mask, and desired shapes of 3D nanostructures can be printed by moving the substrate in three dimensions. The study also presents theoretical approaches to predict the geometries and voxel sizes of 3D nanostructures.
ADDITIVE MANUFACTURING
(2022)
Article
Chemistry, Physical
Yu Wang, Bin Ai, Zengyao Wang, Yuduo Guan, Xinyi Chen, Gang Zhang
Summary: Chiral nanohelmet array (NHA) films prepared through efficient and low-cost colloidal lithography exhibit strong and unique optical properties. With excellent tunability and transferability, they can be applied in the study of chiral metamaterials and various photonic applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Mariusz Rudzinski, Sebastian Zlotnik, Marek Wojcik, Jaroslaw Gaca, Lukasz Janicki, Robert Kudrawiec
Summary: A novel catalyst-free and maskless growth approach was proposed to form an ordered geometrical array of three-dimensional (3D) AlGaN/AlN microrods. By controlling the strain state in AlN buffer layers, two distinct morphologies can be obtained. This technology allows to suppress coalescence and lateral overgrowth, promoting vertical 3D growth, which is suitable for applications in light emitting devices or sensing.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Physics, Applied
Di Xu, Kevin P. Chen, Kris Ohlinger, Yuankun Lin
APPLIED PHYSICS LETTERS
(2008)
Article
Physics, Applied
Di Xu, Kevin P. Chen, Ahmad Harb, Daniel Rodriguez, Karen Lozano, Yuankun Lin
APPLIED PHYSICS LETTERS
(2009)
Article
Physics, Applied
Xun Xu, Guiguang Xiong, Di Xu
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2011)
Article
Physics, Applied
Yuankun Lin, Ahmad Harb, Daniel Rodriguez, Karen Lozano, Di Xu, K. P. Chen
JOURNAL OF APPLIED PHYSICS
(2008)
Article
Physics, Applied
Kris Ohlinger, Faraon Torres, Yuankun Lin, Karen Lozano, Di Xu, Kevin P. Chen
JOURNAL OF APPLIED PHYSICS
(2010)
Article
Engineering, Multidisciplinary
Tong Chen, Di Xu, Michael Buric, Mokhtar Maklad, Philip R. Swinehart, Kevin P. Chen
MEASUREMENT SCIENCE AND TECHNOLOGY
(2010)
Article
Optics
Yuankun Lin, Ahmad Harb, Daniel Rodriguez, Karen Lozano, Di Xu, K. P. Chen
Article
Optics
Yuankun Lin, Ahmad Harb, Karen Lozano, Di Xu, K. P. Chen
Article
Optics
Ahmad Harb, Faraon Torres, Kris Ohlinger, Yuankun Lin, Karen Lozano, Di Xu, Kevin P. Chen
Article
Materials Science, Multidisciplinary
Kris Ohlinger, Hualiang Zhang, Yuankun Lin, Di Xu, Kevin P. Chen
OPTICAL MATERIALS EXPRESS
(2011)
Article
Optics
Fei Ye, Tong Chen, Di Xu, Kevin P. Chen, Bing Qi, Li Qian
Article
Physics, Applied
Zsolt Poole, Di Xu, Kevin P. Chen, Isai Olvera, Kris Ohlinger, Yuankun Lin
APPLIED PHYSICS LETTERS
(2007)
Article
Materials Science, Multidisciplinary
D Xu, GG Xiong
JOURNAL OF MATERIALS SCIENCE
(2004)