Article
Chemistry, Multidisciplinary
Fengshan Zheng, Vadim Migunov, Jan Caron, Hongchu Du, Giulio Pozzi, Rafal E. Dunin-Borkowski
Summary: We demonstrate the quantitative 3D mapping of charge density and electric field in an electrically biased carbon fiber nanotip with a spatial resolution of approximately 5 nm using electron holographic tomography in the transmission electron microscope combined with model-based iterative reconstruction. This approach can be extended to study various nanoscale materials and devices.
Article
Nanoscience & Nanotechnology
Taehwang Son, Gwiyeong Moon, Changhun Lee, Peng Xi, Donghyun Kim
Summary: Near-field optics is crucial in nanotechnology applications for precise biosensing and imaging systems. Analytical approaches, particularly near-field scanning microscopy, are used to understand optical near-fields at the nanoscale. This paper proposes DePLOMA, a technique that overcomes limitations of conventional methods by imaging fluorescence emitters in an out-of-focal plane. By acquiring and accumulating position and fluorescence intensity data, three-dimensional near-field maps can be generated. Super-resolution liquid-phase measurements are demonstrated through reconstruction of near-fields created by nanoslits.
Article
Optics
Giuseppe Brunetti, Nicola Sasanelli, Mario Nicola Armenise, Caterina Ciminelli
Summary: Plasmonic and dielectric configurations are commonly used for optical trapping at the micro/nanoscale, but have different advantages and challenges. This study proposes a silicon-based dielectric nanobowtie dimer that achieves efficient optical trapping without affecting the temperature of the sample. Numerical simulations demonstrate successful trapping of a virus with high stability and stiffness.
Article
Biology
George E. Greaves, Darya Kiryushko, Holger W. Auner, Alexandra E. Porter, Chris C. Phillips
Summary: We present a technique for intracellular label-free chemical mapping with nanoscale resolution, using a probe-based optical microscope and a mid-infrared laser to explore the functional chemistry of intracellular components.
COMMUNICATIONS BIOLOGY
(2023)
Article
Microscopy
Sara Backtiari, Mahdi Sovizi
Summary: This paper introduces a method called near-field scanning optical microscopy (NSOM) to overcome the diffraction limit using sub-wavelength apertures. By simulating the near field in the vicinity of three-dimensional nano-optical apertureless probes, the effects of different parameters on the generated near field are studied.
Article
Nanoscience & Nanotechnology
Yi Xu, Baowei Gao, Axin He, Tongzhou Zhang, Jiasen Zhang
Summary: The study presents and experimentally demonstrates a cross-layered all-optical 3D router using optical slot antenna pairs to achieve nanoscale footprint routing, enabling arbitrary direction routing of plasmonic signals between different layers. This configuration paves the way for future research and applications of high integration density 3D plasmonic circuits.
Article
Engineering, Electrical & Electronic
Yuan Yao, Yani Xue, Xiaojuan Ren, Junsheng Yu, Xiaohe Cheng, Xiaodong Chen
Summary: This paper proposes a three-dimensional uniform ultra-high frequency near-field radio frequency identification reader antenna, which achieves a uniform electric field and direction consistency through a specific design. The antenna meets the requirements of near-field RFID in terms of frequency range and isolation degree.
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Fatima A. Asadallah, Aline Eid, Ghida Shehadeh, Joseph Costantine, Youssef Tawk, Emmanouil M. Tentzeris
Summary: This study proposes the reconfiguration of a coplanar-fed single arm bowtie antenna structure by integrating a digital tunable capacitor, with two configurations using 2-D and 3-D topologies to achieve significant size reduction and optimal performance for IoT applications.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Review
Chemistry, Multidisciplinary
Mohammad Kamal Hossain
Summary: The exploitation of optical confinement in the nanoscale provides valuable information about the properties of materials. Near-field scanning optical microscopy (NSOM) is a technique that overcomes the diffraction limitation of traditional microscopy and spectroscopic techniques by using a near-field probe. In this Personal Account, the authors demonstrate the use of aperture NSOM (a-NSOM) to investigate optical confinement in various nanostructures, including dimers, nano-assemblies, and two-dimensional assemblies. The experimental observations are supported by finite-difference time-domain simulations. The ability to observe nanometric topography and surface-sensitive spectroscopic signals in the nanoscale not only advances our understanding of optical confinements in the near-field but also has implications for designing miniaturized and efficient systems.
Article
Chemistry, Multidisciplinary
Julian Hengsteler, Barnik Mandal, Cathelijn van Nisselroy, Genevieve P. S. Lau, Tilman Schlotter, Tomaso Zambelli, Dmitry Momotenko
Summary: Electrochemical 3D printing has achieved a new breakthrough at the nanoscale, allowing for layer-by-layer manufacturing of 25 nm diameter conductive structures. By controlling the printing process, real-time adjustments of feature sizes and printing of tilted and overhanging structures are made possible.
Article
Biophysics
Vlad Shumeiko, Yossi Paltiel, Gili Bisker, Zvi Hayouka, Oded Shoseyov
Summary: Electronic noses and optical noses are two emerging approaches for flavor and smell evaluation. This study developed a novel paper-based optical nose using semiconducting single-wall carbon nanotubes to detect and differentiate between different odors and volatile compounds, providing real-time data.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Optics
Sukrith U. Dev, Nathan M. Anthony, Simeon Trendafilov, Monica S. Allen, Jeffery W. Allen
Summary: This paper presents a straightforward, low-cost, and high-resolution optical-based method to measure the three-dimensional relative electric field magnitude in microwave circuits. The technique utilizes optically induced conductance in a semiconductor thin film to modulate the transmitted microwave signal, allowing proportional measurement of the local microwave electric field.
Article
Chemistry, Multidisciplinary
Zhaomin Peng, Dehai Zhang, Shuqi Ge, Jin Meng
Summary: In this study, a finite element model (FEM) is proposed to quantify the near-field interactions, and to investigate the edge effect and antenna effect in THz s-SNOM. Our results indicate that the proposed model can give us a better understanding of the near-field interactions and direct the parameter design of the probe for THz s-SNOM.
APPLIED SCIENCES-BASEL
(2023)
Article
Multidisciplinary Sciences
Junseong Ahn, Ji-Hwan Ha, Yongrok Jeong, Young Jung, Jungrak Choi, Jimin Gu, Soon Hyoung Hwang, Mingu Kang, Jiwoo Ko, Seokjoo Cho, Hyeonseok Han, Kyungnam Kang, Jaeho Park, Sohee Jeon, Jun-Ho Jeong, Inkyu Park
Summary: This study proposes a configuration-designable nanoscale 3D fabrication method through rigid nanotransfer printing and design of the substrate's mechanical characteristics. The bottleneck in traditional manufacturing techniques is overcome by using covalent bonding-based two-dimensional nanotransfer printing on elastomer substrates. Analytical calculations and numerical simulations are conducted to examine the feasibility of configuration design by modulating the substrate's mechanical characteristics, enabling the printing of various 3D nanostructures.
NATURE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Tom A. W. Wolterink, Robin D. Buijs, Giampiero Gerini, A. Femius Koenderink, Ewold Verhagen
Summary: This study investigates the use of nanophotonic structures to accurately determine the position of nearby nanoscale objects with subwavelength accuracy. By perturbing the near-field environment of a metasurface transducer consisting of nano-apertures in a metallic film, the location of the nanoscale object is transduced into the transducer's far-field optical response. The research demonstrates two-dimensional localization of objects accurate to 24 nm across a 2 x 2 µm area by monitoring the scattering pattern of the nanophotonic near-field transducer and comparing it to reference data. Additionally, increasing complexity in the nanophotonic transducer allows for localization over a larger area while maintaining resolution by encoding more information on the object's position in the transducer's far-field response.
Article
Thermodynamics
Mohammad Rejaul Haque, Chen Zhu, Chuang Qu, Edward C. Kinzel, Amy Rachel Betz
Summary: This article discusses the importance of atmospheric condensation and the effects of condensation and freezing on surface morphology and chemistry. Experimental studies show that the Ti pillar surface can suppress droplet coalescence by pinning droplets, thereby altering the size distribution of droplets and accelerating the freezing process significantly.
HEAT TRANSFER ENGINEERING
(2021)
Article
Engineering, Chemical
Yi Ming Ren, Yichi Zhang, Yangyao Ding, Tao Liu, Cody S. Lough, Ming C. Leu, Edward C. Kinzel, Panagiotis D. Christofides
Summary: In this study, a complex finite element method model is developed to investigate the heat transfer behavior of the DMLS process. By developing microscopic and mesoscale sub-models, experimentally relevant thermal features are directly incorporated into the part-scale FEM model. Machine learning algorithms and convolutional neural networks are utilized for in-situ defect detection applications, with the contribution of the CNN training being observed.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Engineering, Manufacturing
Nicholas E. Capps, Jonathan T. Goldstein, Katharina Rettschlag, Khodor Sleiman, Peter Jaeschke, Stefan Kaierle, Edward C. Kinzel
Summary: This paper investigates the Digital Glass Forming (DGF) process for printing transparent fully-dense borosilicate structures. Introducing the laser from the side is shown to significantly improve deposition rates.
MANUFACTURING LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Khodor Sleiman, Katharina Rettschlag, Peter Jaeschke, Nicholas Capps, Edward C. Kinzel, Ludger Overmeyer, Stefan Kaierle
Summary: The properties of glass, including transparency and chemical inertness, make it suitable for optical and chemical applications. Additive manufacturing can create complex geometries, but creating transparent glass digitally is challenging. Glass becomes viscous when heated, requiring precise thermal management for bubble-free forming. Previous studies have explored deposition of multiple glass types, but the speed of the process is a significant challenge.
JOURNAL OF LASER APPLICATIONS
(2021)
Article
Engineering, Industrial
Cody S. Lough, Tao Liu, Xin Wang, Ben Brown, Robert G. Landers, Douglas A. Bristow, James A. Drallmeier, Edward C. Kinzel
Summary: This paper uses a Short-Wave Infrared (SWIR) camera to record the temperature history of parts manufactured with Laser Powder Bed Fusion (LPBF) processes, and generates thermal feature-based porosity probability maps using the scan data, demonstrating the potential for in-situ based porosity detection.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Tao Liu, Cody S. Lough, Hossein Sehhat, Yi Ming Ren, Panagiotis D. Christofides, Edward C. Kinzel, Ming C. Leu
Summary: This paper investigates the in-situ characterization of the powder layer using thermographic inspection and proposes a method to predict part distortion and prevent damage to the recoater system and powder layer abrasion.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Sina Malakpour Estalaki, Cody S. Lough, Robert G. Landers, Edward C. Kinzel, Tengfei Luo
Summary: In this study, Machine Learning (ML) models were developed to predict micropore defects in LPBF stainless steel materials using in-situ thermographic data. Key features from the thermal histories were considered, and the thermal features of neighboring voxels were included to improve the prediction accuracy.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Electrical & Electronic
Chen Zhu, Edward C. Kinzel
Summary: Microsphere photolithography (MPL) is a low-cost technique for large-scale fabrication of periodic structures. It utilizes photonic nanojets generated by microspheres in near proximity with collimated UV flood illumination. This paper explores the use of reusable microsphere masks and demonstrates the fabrication of infrared metasurfaces. The results show the potential of mask-based MPL for low-cost large-scale fabrication.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
Nicholas Capps, Jonathan Goldstein, Edward Kinzel
Summary: This paper investigates the Digital Glass Forming process for depositing single-mode optical fiber for waveguiding. The results show that as the fiber deforms to create a good contact with the substrate, the fiber core becomes elliptical, reducing the overall transmission through the fiber.
LASER APPLICATIONS IN MICROELECTRONIC AND OPTOELECTRONIC MANUFACTURING (LAMOM) XXVII
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Gergo P. Szakmany, Gary H. Bernstein, David Burghoff, Edward C. Kinzel, Alexei O. Orlov, Wolfgang Porod, David Strobel, Stephen M. White
Summary: Conventional thermal infrared detectors cannot capture spectral and polarization information, while thermoelectrically coupled nanoantennas can selectively detect infrared radiation with specific spectral, polarization, and angle-of-incidence properties.
TERAHERTZ, RF, MILLIMETER, AND SUBMILLIMETER-WAVE TECHNOLOGY AND APPLICATIONS XV
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Gergo P. Szakmany, Alexei O. Orlov, Gary H. Bernstein, Wolfgang Porod, Edward C. Kinzel
Summary: The paper provides a design-oriented analysis of a dipole nanoantenna suspended above a cavity, focusing on its thermal properties and detection potential. The temperature resolution and comparison between experimental results and the model are highlighted as key factors for assessing the performance of the device.
2021 IEEE RESEARCH AND APPLICATIONS OF PHOTONICS IN DEFENSE CONFERENCE (RAPID)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Gergo P. Szakmany, Gary H. Bernstein, David Burghoff, David G. Gonzalez, Edward C. Kinzel, Alexei O. Orlov, Wolfgang Porod, David Strobel, Stephen M. White
Summary: Thermoelectrically coupled nanoantennas (TECNAs) are developed for studying the Sun's mid- to far-infrared radiation, enabling resonant absorption of IR radiation with wavelength and polarization selectivity and providing uncooled, fast detection. This technology allows for transient solar measurements in the mid- to far-infrared wavelength ranges.
TERAHERTZ, RF, MILLIMETER, AND SUBMILLIMETER-WAVE TECHNOLOGY AND APPLICATIONS XIV
(2021)
Article
Chemistry, Multidisciplinary
Jiayu Liu, Ibrahem Jasim, Tao Liu, Jie Huang, Edward Kinzel, Mahmoud Almasri
Summary: Microsphere photolithography (MPL) is introduced as an alternative fabrication technique for patterning complex metasurfaces on optical single mode fiber tips for sensing refractive index. By changing the UV illumination angle, complicated metasurfaces were successfully created, increasing the sensitivity of the sensors. Testing with different glucose concentrations in water showed variations in refractive index, resulting in shifts of the metasurface resonant wavelength.
Article
Multidisciplinary Sciences
Tristan Cullom, Cody Lough, Nicholas Altese, Douglas Bristow, Robert Landers, Ben Brown, Troy Hartwig, Andrew Barnard, Jason Blough, Kevin Johnson, Edward Kinzel
Summary: Recoil pressure is a critical factor in the dynamics of melt pool during Laser Powder Bed Fusion processes. Too low pressure can lead to inadequate fusion, while excessive pressure can cause gas porosity. Direct measurement of recoil pressure is challenging due to its localized nature and force range, but this study uses a vibration-based approach to quantify the recoil force.
SCIENTIFIC REPORTS
(2021)
Article
Computer Science, Information Systems
Ibrahem Jasim, Jiayu Liu, Chen Zhu, Muhammad Roman, Jie Huang, Edward Kinzel, Mahmoud Almasri
Summary: Microsphere Photolithography (MPL) is a nanopatterning technique utilizing microspheres as an optical element, capable of producing hexagonal close-packed metasurfaces and creating refractive index sensors on optical fibers. With high sensitivity and simplified fabrication process, MPL provides a viable alternative to direct-write techniques.
