Results 81 to 90 of about 1,351,447 (284)

A Review: Graphene Photonic Crystal Fiber

open access: yesMuthanna Journal of Pure Science
Next-generation optical fibers with diverse operating mechanisms, high functionality, and a porous structure that may be designed are known as photonic crystal fibers, or PCFs.
Zainab Mohammed AL-Wahhamy   +2 more
doaj   +1 more source

Silica photonic crystal fiber structure in order to simplify the process of making them [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2014
In this research, a new structure of photonic crystal fibers(PCFs) will be proposed,in which instead of using the aire- holes in the cladding region, the flourine(2%) doped solid silica rods in order to reduce the problems associated with deformities of ...
Ashkan Ghanbari, Mehran Nikoo
doaj  

Large‐Area Flat Optics Color Routing in Tilted Arrays of 2D Semiconductor Nanostripes

open access: yesAdvanced Optical Materials, EarlyView.
We develop a scalable flat optics platform exploiting self‐organised ion‐beam sputtering and maskless glancing‐angle deposition to fabricate centimetre‐scale arrays of tilted MoS2 nanostripes. The engineered geometry activates Rayleigh anomalies, guided modes, and Mie resonances, enabling highly directional color routing and enhanced light harvesting ...
Simone Di Marco   +7 more
wiley   +1 more source

Low Loss in a Gas Filled Hollow Core Photonic crystal fiber

open access: yesمجلة بغداد للعلوم, 2010
The work in this paper focuses on the experimental confirming of the losses in photonic crystal fibers (PCF) on the transmission of Q-switched Nd:YAG laser. First HC-PCF was evacuated to 0.1 mbar then the microstructure fiber (PCF) was filled with He gas
Baghdad Science Journal
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Highly efficient coupling between a monolithically integrated photonic crystal cavity and a bus waveguide [PDF]

open access: yes, 2012
We experimentally demonstrate a new optical filter design comprising of a photonic crystal cavity and a low index bus waveguide which are monolithically integrated on a silicon-on-insulator (SOI) platform.
Ferrera, Marcello   +13 more
core   +1 more source

Electrically injected photonic-crystal nanocavities [PDF]

open access: yes, 2012
Nano-emitters are the new generation of laser devices. A photonic-crystal cavity, which highly confines light in small volumes, in combination with quantum-dots can enhance the efficiency and lower the threshold of this device.
Welna, Karl
core   +2 more sources

In-Situ Measurement of Backscattering in Hollow-Core Fiber Based Resonant Cavities

open access: yesIEEE Photonics Journal, 2017
We measure the light backscattered by resonant optical cavities based on two types of hollow-core photonic bandgap fibers, namely, 7-cell and 19-cell fibers.
Alexia Ravaille   +8 more
doaj   +1 more source

Liquid Crystalline Elastomers in Soft Robotics: Assessing Promise and Limitations

open access: yesAdvanced Robotics Research, EarlyView.
Liquid crystalline elastomers (LCEs) are programmable soft materials that undergo large, anisotropic deformation in response to external stimuli. Their molecular alignment encodes directional actuation in a monolithic structure, making them long‐standing candidates for soft robotic systems.
Justin M. Speregen, Timothy J. White
wiley   +1 more source

Island photonic structures: Properties and application in sensing and metrology

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2019
In this work, we consider a novel photonic crystal type, island resonator, perspective objects of all-optical processing domain, which can be used in the logic gate and adder architecture.
E.Ya. Glushko
doaj   +1 more source

Home - About - Disclaimer - Privacy