[HTML][HTML] Grain refinement and laser energy distribution during laser oscillating welding of Invar alloy

Z Jiang, X Chen, H Li, Z Lei, Y Chen, S Wu, Y Wang - Materials & Design, 2020‏ - Elsevier
Laser oscillating welding method was employed to welding of Invar alloy so as to achieve
grain refinement and decrease internal defects. Effects of frequency and amplitude of beam …

[HTML][HTML] Highly Sensitive Twin Resonance Coupling Refractive Index Sensor Based on Gold- and MgF2-Coated Nano Metal Films

K Ahmed, MA AlZain, H Abdullah, Y Luo… - Biosensors, 2021‏ - mdpi.com
A plasmonic material-coated circular-shaped photonic crystal fiber (C-PCF) sensor based on
surface plasmon resonance (SPR) is proposed to explore the optical guiding performance of …

Comparative simulation of thermal noise effects for photodetectors on performance of long-haul DWDM optical networks

IS Amiri… - Journal of Optical …, 2019‏ - degruyter.com
Abstract Long-haul 16-channel dense-wavelength division multiplexing networks employing
two different avalanche photodiode (APD) structures (Si and InGaAs) and positive-intrinsic …

Solid-core photonic crystal fiber-based nanolayer glucose sensor

MJ Abd-ALhussain, BG Rasheed, MA Fakhri - Journal of Optics, 2024‏ - Springer
In this article, a solid-core photonic crystal fiber was developed to examine different
concentrations and refractive indices of dissolved glucose in water and blood samples using …

Extremely nonlinear carbon-disulfide-filled photonic crystal fiber with controllable dispersion

YE Monfared, SA Ponomarenko - Optical materials, 2019‏ - Elsevier
In this paper, we present a new design of carbon-disulfide-filled photonic crystal fibers (CS 2-
PCFs) by combining two unrelated optical properties, ultra high nonlinearity and tunable …

High extinction ratio and large bandwidth PCF polarization filter with gold-wires coated by monocrystalline silicon

Z Yu, Z **, T Lv, L Liu - IEEE Photonics Journal, 2022‏ - ieeexplore.ieee.org
A kind of high extinction ratio (ER) and large bandwidth photonic crystal fiber (PCF)
polarization filter based on surface plasmon resonance is proposed. The SPP modes can be …

FEM analysis of birefringence, dispersion and nonlinearity of graphene coated photonic crystal fiber

K Ahmed, BK Paul, MA Jabin, B Biswas - Ceramics International, 2019‏ - Elsevier
A novel D-shaped photonic crystal fiber (D-PCF) is proposed to concurrently achieve ultra-
high nonlinearity, birefringence, and numerical aperture profile. Also, the model consists of a …

Design of high-performance photonic crystal fiber polarization filter by Grey Wolf Optimizer with convolutional neural network

D Yang, J Huang, B Xu, G Lv, Y Li, T Cheng - Optik, 2023‏ - Elsevier
In this paper, a D-shaped photonic crystal fiber polarization filter is optimized using a novel
machine learning framework. The framework incorporates the Grey Wolf Optimizer (GWO) …

Highly birefringent TOPAS based single mode photonic crystal fiber with ultra-low material loss for Terahertz applications

BK Paul, K Ahmed - Optical Fiber Technology, 2019‏ - Elsevier
In this article, a polarization maintaining single mode photonic crystal fiber (PCF) has been
suggested for Terahertz wave propagation. The proposed PCF is circular shape where five …

An ultra-high birefringent and nonlinear decahedron photonic crystal fiber employing molybdenum disulphide (MoS2): a numerical analysis

A Upadhyay, S Singh, D Sharma, SA Taya - Materials Science and …, 2021‏ - Elsevier
A novel Decahedron photonic crystal fiber (DHn-PCF) is proposed. To sustain high
birefringence and nonlinearity, the central elliptical core is filled with a highly nonlinear 2D …