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42 Results Found

  • Article
  • Open Access
5 Citations
4,667 Views
23 Pages

27 January 2020

LENS (Light Emitting Nano-pixel Structure), a new nano-metric device, was designed, simulated, and modeled for feasibility analysis, with the challenge of combining high resolution and high brightness for display, essentially adapted for Augmented Re...

  • Article
  • Open Access
8 Citations
3,876 Views
25 Pages

24 December 2020

A nano light emitting device (LED) has been developed and is presented. This new LED, entitled LENS (Light Emitting Nano-pixel Structure), is a new nano-pixel structure designed to enable high-resolution display. It serves as the building block of a...

  • Article
  • Open Access
1,700 Views
9 Pages

Microbolometer arrays, i.e., arrays of micro-scale pixels sensing temperature via resistance changes, have proven to be an effective basis for real-time imaging instrumentation in infrared as well as terahertz frequencies. In previous work, a design...

  • Article
  • Open Access
3 Citations
4,910 Views
12 Pages

Averaging Pixel Current Adjustment Technique for Reducing Fixed Pattern Noise in the Bolometer-Type Uncooled Infrared Image Sensor

  • Sang-Hwan Kim,
  • Byoung-Soo Choi,
  • Jimin Lee,
  • Junwoo Lee,
  • Jewon Lee,
  • Jae-Hyoun Park,
  • Kyoung-Il Lee and
  • Jang-Kyoo Shin

6 April 2019

In this paper, we propose an averaging pixel current adjustment technique for reducing fixed pattern noise (FPN) in the bolometer-type uncooled infrared image sensor. The averaging pixel current adjustment technique is composed of active pixel, refer...

  • Article
  • Open Access
1,947 Views
11 Pages

Microscale Lateral Perovskite Light Emitting Diode Realized by Self-Doping Phenomenon

  • Wenzhe Gao,
  • He Huang,
  • Chenming Wang,
  • Yongzhe Zhang,
  • Zilong Zheng,
  • Jinpeng Li and
  • Xiaoqing Chen

10 July 2024

High-definition near-eye display technology has extremely close sight distance, placing a higher demand on the size, performance, and array of light-emitting pixel devices. Based on the excellent photoelectric performance of metal halide perovskite m...

  • Article
  • Open Access
36 Citations
7,027 Views
22 Pages

Radiometric Assessment of a UAV-Based Push-Broom Hyperspectral Camera

  • M. Alejandra P. Barreto,
  • Kasper Johansen,
  • Yoseline Angel and
  • Matthew F. McCabe

29 October 2019

The use of unmanned aerial vehicles (UAVs) for Earth and environmental sensing has increased significantly in recent years. This is particularly true for multi- and hyperspectral sensing, with a variety of both push-broom and snap-shot systems becomi...

  • Article
  • Open Access
16 Citations
7,711 Views
17 Pages

We introduce a novel scanning electron microscopy (SEM) method which yields powder electron diffraction patterns. The only requirement is that the SEM microscope must be equipped with a pixelated detector of transmitted electrons. The pixelated detec...

  • Article
  • Open Access
2 Citations
2,846 Views
10 Pages

A Contrast Calibration Protocol for X-ray Speckle Visibility Spectroscopy

  • Yanwen Sun,
  • Vincent Esposito,
  • Philip Adam Hart,
  • Conny Hansson,
  • Haoyuan Li,
  • Kazutaka Nakahara,
  • James Paton MacArthur,
  • Silke Nelson,
  • Takahiro Sato and
  • Sanghoon Song
  • + 4 authors

27 October 2021

X-ray free electron lasers, with their ultrashort highly coherent pulses, opened up the opportunity of probing ultrafast nano- and atomic-scale dynamics in amorphous and disordered material systems via speckle visibility spectroscopy. However, the an...

  • Article
  • Open Access
30 Citations
4,165 Views
14 Pages

10 March 2022

Non-electrical contact and non-carrier injection (NEC&NCI) mode is an emerging driving mode for nanoscale light-emitting diodes (LEDs), aiming for applications in nano-pixel light-emitting displays (NLEDs). However, the working mechanism of nano-...

  • Article
  • Open Access
7 Citations
3,318 Views
13 Pages

Individually Switchable InGaN/GaN Nano-LED Arrays as Highly Resolved Illumination Engines

  • Katarzyna Kluczyk-Korch,
  • Sergio Moreno,
  • Joan Canals,
  • Angel Diéguez,
  • Jan Gülink,
  • Jana Hartmann,
  • Andreas Waag,
  • Aldo Di Carlo and
  • Matthias Auf der Maur

GaN-based light emitting diodes (LEDs) have been shown to effectively operate down to nanoscale dimensions, which allows further downscaling the chip-based LED display technology from micro- to nanoscale. This brings up the question of what resolutio...

  • Article
  • Open Access
18 Citations
8,019 Views
11 Pages

22 June 2019

An active-mode organic light-emitting diode (AMOLED) display on a fabric substrate is expected to be a prominent textile display for e-textile applications. However, the large surface roughness of the fabric substrate limits the aperture ratio—the ar...

  • Article
  • Open Access
2 Citations
1,819 Views
11 Pages

Continuous-Wave Pumped Monolayer WS2 Lasing for Photonic Barcoding

  • Haodong Cheng,
  • Junyu Qu,
  • Wangqi Mao,
  • Shula Chen and
  • Hongxing Dong

30 March 2024

Micro/nano photonic barcoding has emerged as a promising technology for information security and anti-counterfeiting applications owing to its high security and robust tamper resistance. However, the practical application of conventional micro/nano p...

  • Article
  • Open Access
10 Citations
4,994 Views
6 Pages

25 June 2022

With the development of virtual reality/augmented reality (VR/AR) display devices, the conventional fine metal mask is limited by the wet etch process, which no longer meets the demand for high pixels per inch (PPI) displays. We deposited a layer of...

  • Article
  • Open Access
249 Views
20 Pages

29 November 2025

This paper addresses the degradation of imaging quality in high-resolution CubeSats caused by micro-vibrations from attitude control flywheels. It proposes a micro-vibration suppression scheme that incorporates multi-disciplinary integrated modeling,...

  • Article
  • Open Access
14 Citations
5,396 Views
18 Pages

A Multi-Scale Feasibility Study into Acid Mine Drainage (AMD) Monitoring Using Same-Day Observations

  • Richard Chalkley,
  • Rich Andrew Crane,
  • Matthew Eyre,
  • Kathy Hicks,
  • Kim-Marie Jackson and
  • Karen A. Hudson-Edwards

23 December 2022

Globally, many mines emit acid mine drainage (AMD) during and after their operational life cycle. AMD can affect large and often inaccessible areas. This leads to expensive monitoring via conventional ground-based sampling. Recent advances in remote...

  • Article
  • Open Access
5 Citations
2,891 Views
9 Pages

15 May 2023

The miniaturization of optical switches is a promising prospect with the use of phase-change materials (PCMs), and exploring various strategies to effectively integrate PCMs with integrated optical waveguides represents an intriguing research questio...

  • Article
  • Open Access
7 Citations
2,426 Views
11 Pages

Switchable Polyacrylic Acid Polyelectrolyte Brushes for Surface Plasmon Resonance Applications

  • Qais M. Al-Bataineh,
  • Ahmad D. Telfah,
  • Victoria Shpacovitch,
  • Carlos J. Tavares and
  • Roland Hergenröder

26 April 2023

Imaging wide-field surface plasmon resonance (SPR) microscopy sensors based on polyacrylic acid polyelectrolyte brushes (PAA PEBs) were designed to enhance the sensitivity of nano-object detection. The switching behavior of the PAA PEBs against chang...

  • Article
  • Open Access
10 Citations
3,480 Views
9 Pages

Lithium niobate (LN) is a promising optical material, its micro–nano structures have been applied to fields such as photonic crystals, nonlinear optics, optical waveguides, and so on. At present, lithium niobate structural colors are rarely stu...

  • Article
  • Open Access
7 Citations
3,013 Views
11 Pages

9 June 2023

A moiré photonic crystal is an optical analog of twisted graphene. A 3D moiré photonic crystal is a new nano-/microstructure that is distinguished from bilayer twisted photonic crystals. Holographic fabrication of a 3D moiré phot...

  • Article
  • Open Access
7 Citations
7,235 Views
20 Pages

18 September 2023

In this paper, the comparison of the power requirements during real-time processing of video sequences in embedded systems was investigated. During the experimental tests, four modules were tested: Raspberry Pi 4B, NVIDIA Jetson Nano, NVIDIA Jetson X...

  • Article
  • Open Access
14 Citations
6,267 Views
21 Pages

10 January 2023

Aiming at the current lane line detection algorithm in complex traffic scenes, such as lane lines being blocked by shadows, blurred roads, and road sparseness, which lead to low lane line detection accuracy and poor real-time detection speed, this pa...

  • Article
  • Open Access
1,631 Views
13 Pages

Dual-Task Optimization Method for Inverse Design of RGB Micro-LED Light Collimator

  • Liming Chen,
  • Zhuo Li,
  • Purui Wang,
  • Sihan Wu,
  • Wen Li,
  • Jiechen Wang,
  • Yue Cao,
  • Masood Mortazavi,
  • Liang Peng and
  • Pingfan Wu

25 January 2025

Miniaturized pixel sizes in near-eye digital displays lead to pixel emission patterns with large divergence angles, necessitating efficient beam collimation solutions to improve the light coupling efficiency. Traditional beam collimation optics, such...

  • Article
  • Open Access
3 Citations
2,459 Views
17 Pages

Photoelectric Target Detection Algorithm Based on NVIDIA Jeston Nano

  • Shicheng Zhang,
  • Laixian Zhang,
  • Huayan Sun and
  • Huichao Guo

17 September 2022

This paper proposes a photoelectric target detection algorithm for NVIDIA Jeston Nano embedded devices, exploiting the characteristics of active and passive differential images of lasers after denoising. An adaptive threshold segmentation method was...

  • Article
  • Open Access
680 Views
29 Pages

Absolute Radiometric Calibration Evaluation of Uncrewed Aerial System (UAS) Headwall and MicaSense Sensors and Improving Data Quality Using the Empirical Line Method

  • Mahesh Shrestha,
  • Victoria Scholl,
  • Aparajithan Sampath,
  • Jeffrey Irwin,
  • Travis Kropuenske,
  • Josip Adams,
  • Matthew Burgess and
  • Lance Brady

17 November 2025

The use of Uncrewed Aerial Systems (UASs) for remote sensing applications has increased significantly in recent years due to their low cost, operational flexibility, and rapid advancements in sensor technologies. In many cases, UAS platforms are cons...

  • Article
  • Open Access
4 Citations
2,629 Views
12 Pages

10 April 2022

Significant progress has been made in the field of micro/nano-retinal implant technologies. However, the high pixel range, power leakage, reliability, and lifespan of retinal implants are still questionable. Active implantable devices are safe, cost-...

  • Article
  • Open Access
1,118 Views
19 Pages

Beam Tilt Aberration Detection of the Seven-Unit Phased Fiber Laser Array

  • Xin Yu,
  • Xingyue Wang,
  • Jing Liang,
  • Cai Liu,
  • Xiaolong Ni,
  • Suping Bai,
  • Jiasu Li,
  • Zeping Liu and
  • Lijie Hou

30 December 2024

In this paper, we present a method based on the conjugate image principle and micro-nano optics to detect tilt aberrations of a phased fiber laser array system. A co-aperture optics system was adapted to detect the tilt aberrations of a seven-element...

  • Article
  • Open Access
2 Citations
3,029 Views
18 Pages

Convolutional Neural Network Models in Municipal Solid Waste Classification: Towards Sustainable Management

  • Mirna Castro-Bello,
  • Dominic Brian Roman-Padilla,
  • Cornelio Morales-Morales,
  • Wilfrido Campos-Francisco,
  • Carlos Virgilio Marmolejo-Vega,
  • Carlos Marmolejo-Duarte,
  • Yanet Evangelista-Alcocer and
  • Diego Esteban Gutiérrez-Valencia

14 April 2025

Municipal Solid Waste (MSW) management presents a significant challenge for traditional separation practices, due to a considerable increase in quantity, diversity, complexity of types of solid waste, and a high demand for accuracy in classification....

  • Article
  • Open Access
4 Citations
4,232 Views
16 Pages

25 October 2021

Modern digital cameras use specific arrangement of Color Filter Array to sample light wavelength corresponding to visible colors. The most common Color Filter Array is the Bayer filter that samples only one color per pixel. To recover the full resolu...

  • Article
  • Open Access
41 Citations
9,247 Views
16 Pages

9 March 2017

A ratiometric optical sensor has been developed with electrospinning processing method for dissolved oxygen measurement. The sensing film is fabricated by using silver nano-particles (Ag NPs) doped with tris(4,7-diphenyl-1,10-phenanthroline) rutheniu...

  • Article
  • Open Access
2 Citations
3,565 Views
17 Pages

A self-correction method for the drift artifacts of laboratory cone-beam nanoscale X-ray computed tomography (nano-CT) based on the trajectory of projection centroid (TPC) is proposed. This method does not require additional correction phantoms, simp...

  • Article
  • Open Access
22 Citations
3,217 Views
11 Pages

9 October 2021

Researchers are showing an increasing interest in high-performance flexible pressure sensors owing to their potential uses in wearable electronics, bionic skin, and human–machine interactions, etc. However, the vast majority of these flexible pressur...

  • Feature Paper
  • Article
  • Open Access
31 Citations
6,550 Views
11 Pages

Mesoporous Highly-Deformable Composite Polymer for a Gapless Triboelectric Nanogenerator via a One-Step Metal Oxidation Process

  • Hee Jae Hwang,
  • Younghoon Lee,
  • Choongyeop Lee,
  • Youngsuk Nam,
  • Jinhyoung Park,
  • Dukhyun Choi and
  • Dongseob Kim

11 December 2018

The oxidation of metal microparticles (MPs) in a polymer film yields a mesoporous highly-deformable composite polymer for enhancing performance and creating a gapless structure of triboelectric nanogenerators (TENGs). This is a one-step scalable synt...

  • Feature Paper
  • Article
  • Open Access
1 Citations
1,622 Views
12 Pages

19 March 2025

This study presents a digital surface-enhanced Raman scattering (SERS) method to enhance the sensitivity of SERS detection for low-concentration analytes. Conventional SERS analysis using average Raman intensity faces limitations in distinguishing lo...

  • Article
  • Open Access
3 Citations
3,349 Views
13 Pages

Development and Characterization of Low Temperature Wafer-Level Vacuum Packaging Using Cu-Sn Bonding and Nanomultilayer Getter

  • Taehyun Kim,
  • Sangwug Han,
  • Jubum Lee,
  • Yeeun Na,
  • Joontaek Jung,
  • Yun Chang Park,
  • Jaesub Oh,
  • Chungmo Yang and
  • Hee Yeoun Kim

14 February 2023

Most microsensors are composed of devices and covers. Due to the complicated structure of the cover and various other requirements, it difficult to use wafer-level packaging with such microsensors. In particular, for monolithic microsensors combined...

  • Article
  • Open Access
4 Citations
2,369 Views
13 Pages

Facile Modification of Flexible Electrodes via Laser Transfer

  • Florin Andrei,
  • Iulian Boerasu,
  • Mihaela Filipescu and
  • Alexandra Palla-Papavlu

28 March 2022

In this work, we report the modification of commercially available electrochemical electrodes with tin oxide (SnO2) and Pd doped SnO2 (Pd-SnO2) via pulsed laser-induced forward transfer (LIFT). The pulsed light irradiation working as in situ pulsed p...

  • Article
  • Open Access
29 Citations
3,973 Views
20 Pages

In the current work, the characterization of novel chitosan/silica nanoparticle/nisin films with the addition of nisin as an antimicrobial technique for blueberry preservation during storage is investigated. Chitosan/Silica Nanoparticle/N (CH-SN-N) f...

  • Article
  • Open Access
2 Citations
1,823 Views
15 Pages

16 July 2025

Structural health monitoring in resource-constrained environments demands crack segmentation models that match the accuracy of heavyweight convolutional networks while conforming to the power, memory, and latency limits of watt-level edge devices. Th...

  • Article
  • Open Access
8 Citations
2,754 Views
28 Pages

The Design of Cone and Pendulum Scanning Mode Using Dual-Camera with Multi-Dimensional Motion Imaging Micro-Nanosatellite

  • Zheng Zhi,
  • Hongsong Qu,
  • Shuping Tao,
  • Liangliang Zheng,
  • Shipeng Ying and
  • Heqian Zhu

15 September 2022

This paper focuses on the design of a new optical cone and pendulum scanning imaging mode for micro-nanosatellites. This kind of satellite uses a high-resolution camera with a small imaging plane to achieve high-resolution and ultra-wide coverage ima...

  • Article
  • Open Access
21 Citations
3,932 Views
24 Pages

A Lightweight and High-Accuracy Deep Learning Method for Grassland Grazing Livestock Detection Using UAV Imagery

  • Yuhang Wang,
  • Lingling Ma,
  • Qi Wang,
  • Ning Wang,
  • Dongliang Wang,
  • Xinhong Wang,
  • Qingchuan Zheng,
  • Xiaoxin Hou and
  • Guangzhou Ouyang

15 March 2023

Unregulated livestock breeding and grazing can degrade grasslands and damage the ecological environment. The combination of remote sensing and artificial intelligence techniques is a more convenient and powerful means to acquire livestock information...

  • Article
  • Open Access
56 Citations
4,924 Views
15 Pages

Route to Intelligent Imaging Reconstruction via Terahertz Nonlinear Ghost Imaging

  • Juan S. Totero Gongora,
  • Luana Olivieri,
  • Luke Peters,
  • Jacob Tunesi,
  • Vittorio Cecconi,
  • Antonio Cutrona,
  • Robyn Tucker,
  • Vivek Kumar,
  • Alessia Pasquazi and
  • Marco Peccianti

Terahertz (THz) imaging is a rapidly emerging field, thanks to many potential applications in diagnostics, manufacturing, medicine and material characterisation. However, the relatively coarse resolution stemming from the large wavelength limits the...

  • Article
  • Open Access
918 Views
19 Pages

5 October 2025

Road-surface distress poses a serious threat to traffic safety and imposes a growing burden on urban maintenance budgets. While modern detectors based on convolutional networks and Vision Transformers achieve strong frame-level performance, they ofte...

  • Article
  • Open Access
24 Citations
10,458 Views
13 Pages

An Efficient Wildfire Detection System for AI-Embedded Applications Using Satellite Imagery

  • George L. James,
  • Ryeim B. Ansaf,
  • Sanaa S. Al Samahi,
  • Rebecca D. Parker,
  • Joshua M. Cutler,
  • Rhode V. Gachette and
  • Bahaa I. Ansaf

20 April 2023

Wildfire risk has globally increased during the past few years due to several factors. An efficient and fast response to wildfires is extremely important to reduce the damaging effect on humans and wildlife. This work introduces a methodology for des...