Results 131 to 140 of about 208,317 (297)

Research on Four Core Fiber WDM Device Technology

open access: yesGuangtongxin yanjiu
Space division multiplexing technology is one of the effective ways to improve the transmission capacity of optical communication system. The main technologies include Multi Core Fiber (MCF), few mode multiplexing and orbital angular momentum ...
CHEN Li   +3 more
doaj  

Thin liquid film thickness measurement using stepped-index-type optical fiber sensors

open access: yesJournal of Fluid Science and Technology
Optical fiber liquid film sensors utilizing the reflection intensity at the gas-liquid interface exhibit excellent environmental robustness. However, this technique needs to improve its sensitivity when measuring liquid film thicknesses approaching the ...
Shinsuke WATANABE   +2 more
doaj   +1 more source

Seven-core fiber optical palm

open access: yesOptics Express
We propose and construct the optical palm based on the seven-core optical fiber for particle trapping, multidimensional particle shooting, and controllable vibrations. This optical hand features a tunable three-dimensional optical trap, created using six independently controlled surrounding fiber cores and one central fiber core.
Kai Zhang   +7 more
openaire   +1 more source

Bio‐Inspired Multimodal Hardware Front‐End Enabled by 2D Floating‐Gate Memory for UAV Perception

open access: yesAdvanced Functional Materials, EarlyView.
A MoS2/h‐BN /graphene floating‐gate memory underpins a bio‐inspired multimodal front end that integrates visual, inertial, and airflow cues. A 4 × 4 FG memory array encodes temporal intensity differences, while IMU‐ and airflow‐driven threshold modulation suppresses self‐motion artifacts, enabling fast, low‐power, robust autonomous UAV tracking and ...
Lianghao Guo   +11 more
wiley   +1 more source

Terahertz Waveguiding in Silicon-Core Fibers [PDF]

open access: yes, 2013
We propose the use of a silicon-core optical fiber for terahertz (THz) waveguide applications. Finite-difference time-domain simulations have been performed based on a cylindrical waveguide with a silicon core and silica cladding.
Ballato, John   +3 more
core   +1 more source

Amyloidogenic Peptide Fragments Designed From Bacterial Collagen‐like Proteins Form Hydrogel

open access: yesAdvanced Functional Materials, EarlyView.
This study identified amyloidogenic sequence motifs in bacterial collagen‐like proteins and exploited these to design peptides that self‐assemble into β‐sheet fibers and form hydrogels. One hydrogel supported healthy fibroblast growth, showing promise for biocompatible materials. Our work demonstrates that bacterial sequences can be harnessed to create
Vamika Sagar   +5 more
wiley   +1 more source

Pr3+-doped YPO4 nanocrystal embedded into an optical fiber

open access: yesScientific Reports
Optical fiber with YPO4:Pr3+ nanocrystals (NCs) is presented for the first time using the glass powder—NCs doping method. The method’s advantage is separate preparation of NCs and glass to preserve luminescent and optical properties of NCs once they are ...
Dominik Dorosz   +19 more
doaj   +1 more source

Enhancement of Magnetic Fluid Multimode Interference Filter-Based on No-Core Fiber in the Fourth Self-Imaging

open access: yesمجلة النهرين للعلوم الهندسية
Cascade single mode-No Core - single mode fiber structure (SNS) optical filters have garnered a lot of interest as dependable optical devices. These devices' simplicity, compactness, affordability, all-fiber design, low transmission loss, and ability to
Batool Mahmood   +2 more
doaj   +1 more source

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

open access: yesAdvanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu   +13 more
wiley   +1 more source

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