Results 81 to 90 of about 7,564 (214)

Ultra Compact and Broadband Fiber Facet Graphene Oxide Microlens Array Fabricated on a Beam‐Expanding Fiber Facet Using Femtosecond Laser Direct Writing Technique

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
A 400 nm graphene oxide film on a beam‐expanding fiber facet is patterned by femtosecond laser direct writing into a 19‐lens microlens array. The device simultaneously splits a single input beam into multiple 0.67–0.74 NA focus spots with a broadband response from 850 to 1550 nm.
Xiaoke Chen, Lin Ma, Linbin Bai, Tianqi Cheng, Zuyuan He   +4 more
wiley   +1 more source

Shannon Entropy and Lévy Statistics for Machine Learning‐Assisted Spectral Sensing in Random Fiber Lasers With Magnetic Core–Shell Nanoscatterers

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
Random laser emission was observed in a polymer optical fiber structure doped with magnetic Fe3O4@SiO2 core–shell nanoparticles. A direct relationship was demonstrated between Shannon entropy and Lévy statistics regarding intensity fluctuations in the emission modes. The analysis indicated a potential application in a proposed magnetic field and energy
Emanuel P. Santos, Wenyu Du, Edwin D. Coronel, Alyson J. A. Carvalho, G. Palacios, Cecília L. A. V. Campos, Zhijia Hu, Ernesto P. Raposo, Anderson S. L. Gomes   +8 more
wiley   +1 more source

A Hybrid Computational Framework for PCF‐based SPR Sensor With Machine Learning and xAI

Advanced Materials Interfaces, Volume 13, Issue 15, 4 August 2026.
A photonic crystal fiber‐based surface plasmon resonance (SPR) sensor integrating rectangular air holes along with conventional circular air holes achieves exceptional wavelength sensitivity of 15,000 nm/RIU across a broad refractive index range of 1.31–1.39. Integrated machine learning with explainable AI (xAI) models achieves high prediction accuracy
Mahabur Rahman Fahim, Sudeep Paul, Musrat Jahan, Md Abu Shahid Chowdhury   +3 more
wiley   +1 more source

Compact Fourier‐Transform Spectrometer on Thin‐Film Lithium Niobate via Mode‐Circulating Modulation

Advanced Photonics Research, Volume 7, Issue 8, August 2026.
Schematic diagram of the proposed compact on‐chip Fourier‐transform spectrometer on thin‐film lithium niobate that exploits mode‐circulating electro‐optic modulation, in which guided light is sequentially converted among multiple spatial modes to accumulate multiple phase modulation events within a single physical modulation arm.
Hao Yao, Jiayao Deng, Yuzhe Sun, Hao Zhang, Yinglu Zhang, Mengke Wang, Jieyun Wu, Kaixin Chen   +7 more
wiley   +1 more source

Intrinsic Focus‐Like Light Concentration From Anti‐Resonant Hollow‐Core Fibers

Advanced Photonics Research, Volume 7, Issue 8, August 2026.
The fundamental mode of hollow‐core waveguides is shown to produce intrinsic focus‐like light concentration in free space without external optics. Combined experiments and simulations reveal that this behavior originates from the non‐Gaussian nature of leaky modes, establishing a new mechanism for lensless beam shaping and compact optical interfacing ...
Shahrzad Hosseinabadi, Torsten Wieduwilt, Michael H. Frosz, Markus A. Schmidt   +3 more
wiley   +1 more source

Fast Reconfigurable Optical Directed Logic Chip Using 2 × 2 Optical Switch on SOI Platform

Advanced Photonics Research, Volume 7, Issue 8, August 2026.
We demonstrated a compact and power‐efficient EO optical switch on silicon platform with microring resonators. The microring resonators are arranged with a strictly nonblocking crossbar architecture. Through detailed analysis and testing, this switch not only performs the function of switching routing but also realizes the function of several logic ...
Yuexin Yin, Shiyu Liao, Xinru Xu, Guoyan Zeng, Daming Zhang, Shiyoshi Yokoyama   +5 more
wiley   +1 more source

Drop‐Shaped Optical Microfiber Enabled Biomechanical Sensor

Advanced Science, Volume 13, Issue 44, 7 August 2026.
A novel microforce sensor based on a drop‐shaped optical microfiber is presented herein, designed to characterize the biomechanical properties of single cells and microscale living organisms, achieving a force resolution of 24 nN. Leveraging its high sensitivity, facile miniaturization, excellent flexibility, and robust mechanical stability, this ...
Yan Xu, Xitao Tu, Haochen Jiang, Jun Mo, Xinyue Zhang, Xiaomin Yue, Limin Tong, Lei Zhang   +7 more
wiley   +1 more source

Detecting the extent of co-existing anomalies in additively manufactured metal matrix composites through explainable selection and fusion of multi-camera deep learning features

Virtual and Physical Prototyping
Process development for customised additively manufactured materials is challenging and labour-intensive. Advanced in-situ monitoring coupled with modern machine learning (ML) methods can expedite defect detection and qualification of additive ...
Mutahar Safdar, Gentry Wood, Max Zimmermann, Guy Lamouche, Priti Wanjara, Yaoyao Fiona Zhao   +5 more
doaj   +1 more source

Laser Cladding.

Journal of the Japan Welding Society, 1995
Makino, Yoshinobu, Honda, Keizoh
openaire   +2 more sources

Hexagonal Hollow‐Core Photonic Crystal Fiber for High‐Sensitivity Terahertz Glucose Detection

Journal of Biophotonics, Volume 19, Issue 8, August 2026.
A novel hexagonal hollow‐core photonic crystal fiber (HPhCF) operating at 2.2 THz is proposed for rapid, non‐invasive detection of urinary glucose. The Zeonex‐based hollow‐core architecture enhances light‐analyte interaction, enabling 96.90% relative sensitivity while maintaining ultra‐low confinement loss and low effective material loss.
Mohammad Abdullah‐Al‐Shafi, Shuvo Sen, Mashiyat Mubassera, Md. Tanvir Hossain Hawlader   +3 more
wiley   +1 more source