Results 121 to 130 of about 132,674 (264)

Selected issues concerning fibre-optic bending sensors

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
This paper presents a comprehensive review of bending sensors and their classifications. The main focus is on advancements in the design of optical fibre bending sensors based on fibre Bragg gratings (FBGs).
Les Hotra, Jacek Klimek, Ihor Helzhynskyy, Oksana Boyko, Svitlana Kovtun   +4 more
doaj   +1 more source

AI‐Powered Smart Displays and AR Glasses: Perspectives and Challenges

Advanced Intelligent Systems, EarlyView.
This perspective examines how AI is reshaping smart displays and AR glasses. The latest in image‐quality enhancement, sensor‐integrated display optimization, and physiological sensing in display systems, followed by AI‐assisted AR technologies including waveguide optimization, image compensation, foveated rendering, and multimodal sensing, is discussed.
Luke Benoit, Yizhou Qian, Yi‐Chien Chen, Ziyang Shen, Po‐Sheng Chiu, Youngeon Lee, Cheng‐Han Ke, Chih‐Lung Lin, Shin‐Tson Wu   +8 more
wiley   +1 more source

Bronchoscope Tip Localization With Learned Airway Constraints and an Open Source Simulator

Advanced Intelligent Systems, EarlyView.
BronchoLoc addresses feature‐poor bronchoscopic imaging by combining monocular video with a preoperative CT graph to estimate 3D camera location. A local tracker identifies candidate branches, while a sequence‐aware global module refines the trajectory. Demonstrating sub‐centimeter accuracy across synthetic and phantom datasets, this framework advances
Emanuele Nicotra, James Davies, Bibhu Sharma, Adrienne Ji, Kefan Zhu, Phuoc Thien Phan, Nigel H. Lovell, Thanh Nho Do   +7 more
wiley   +1 more source

Shape Sensing, Mapping, and Obstacle Avoidance of the Continuum Manipulator in Confined Environments

Advanced Intelligent Systems, EarlyView.
An integrated sensing framework combines capacitive sensors, IMU, and laser array sensor. The shape reconstruction is finished by backpropagation neural network. Accurate shape estimation (relative error of 1.04%) is maintained under a 110 g tip load, while a miniaturized VL6180X array enables local environmental reconstruction and reactive obstacle ...
Pengyuan Wang, Shi Qiao, Zhaoye Dong, Yuxuan Wang, Runte Song, Fengguang Jia, Shu Wang, Yongchang Zhang, Zhiguang Xing, Jianwen Zhao   +9 more
wiley   +1 more source

Advanced fibre Bragg gratings for high performance dispersion compensation in DWDM systems

, 2000
The increasing application of DWDM transmission schemes with bit rates of 10 Gb/s and 50 GHz channel spacing places a strict requirement on dispersion management.
Ramirez, C., Feced, R., Durkin, M.K., Zervas, M.N.   +3 more
core   +1 more source

Low‐Threshold Red Lasing in Diketopyrrolopyrrole‐Based Organic Semiconductor Films

Angewandte Chemie International Edition, EarlyView.
Low‐threshold organic semiconductor lasers (OSLs) in the red region are achieved using diketopyrrolopyrrole (DPP) derivatives (DPA‐DPPMe and HMAT‐d‐DPP). Molecular design enables precise control of radiative‐decay and molecular orientation, suppressing optical losses and enhancing gain.
Youhei Chitose, Ryota Zenke, Takuma Saeki, Hsin‐Yi Wei, Rahul Murali, Shota Fukuma, Yusei Kaya, Gomathi Vinayakam Mageswari, Sai Santosh Kumar Raavi, Ja‐Hon Lin, Tzu‐Chau Lin, Chihaya Adachi   +11 more
wiley   +1 more source

Strain‐Tunable Photoluminescence From Ge Quantum Dots on Si Nanotips for CMOS‐Compatible Photonics

Advanced Physics Research, EarlyView.
This work studies strain in Ge quantum dots grown on Si nanotips using photoluminescence, X‐ray diffraction, and band structure calculations. It shows how emission changes with dot size, evaluates strain in the dot and substrate, and explains the role of direct and indirect transitions in the optical behavior.
Diana Ryzhak, Johannes Aberl, Enrique Prado‐Navarrete, Lada Vukušić, Oliver Skibitzki, Petr Klenovský, Marvin Hartwig Zoellner, Markus Andreas Schubert, Moritz Brehm, Davide Spirito, Giovanni Capellini   +10 more
wiley   +1 more source

Ultrafast RF Spectrum Analyzer Assisted by Optical Short‐Time Fourier Transform

Advanced Physics Research, EarlyView.
We present Recent efforts in an ultrafast RF spectrum analyzer based on the short‐time Fourier transform (STFT) at over 10 MHz frame rate and over 40GHz bandwidth to improve performance and support applications. All these efforts could inspire more innovative applications of temporal imaging modalities in the future.
Liao Chen, Yufan Du, Rongwu Liu, Chi Zhang, Xinliang Zhang   +4 more
wiley   +1 more source

VCSEL with intra-cavity circular Bragg gratings for single-mode operation

AIP Advances
In this paper, we present the design and fabrication of a single-mode Vertical-Cavity Surface-Emitting Laser (VCSEL) incorporating circular Bragg gratings (CBGs).
Shanting Hu, Xinchen Zhang, Chengyuan Lee, Bo Tian, Lei Zhu, Xiangjun Xin   +5 more
doaj   +1 more source

A Non‐Volatile Heterogeneous Quantum Dot III‐V/Si DFB Laser With Optical Memristive Behavior

Advanced Physics Research, EarlyView.
A heterogeneous quantum dot III‐V/Si DFB laser stores its own optical state. An ultrathin Al2O3 memristor at the III‐V/Si interface produces non‐volatile wavelength shifts of ∼46 pm and ∼17 dB peak power contrast with zero holding power. Combining coherent light generation and persistent memory in one device opens a path toward neuromorphic photonics ...
Stanley Cheung, Di Liang, Yuan Yuan, Yingtao Hu, Geza Kurczveil, Xucheng Yang, Raymond Beausoleil, Bassem Tossoun   +7 more
wiley   +1 more source