Results 91 to 100 of about 608,125 (335)

AlGaInN laser diode technology for GHz high-speed visible light communication through plastic optical fiber and water [PDF]

, 2016
AlGaInN ridge waveguide laser diodes are fabricated to achieve single-mode operation with optical powers up to 100 mW at ∼420  nm∼420  nm for visible free-space, underwater, and plastic optical fiber communication.
Czernecki, Robert, Kelly, Antony E., Kucharski, Robert, Leszczynski, Mike, Marona, Lucja, Najda, Stephen P., Perlin, Piotr, Suski, Tadek, Targowski, Grzegorz, Watson, Malcolm A., Watson, Scott, White, Henry, Wisniewski, Przemek   +12 more
core   +1 more source

Femtosecond Single‐ and Double‐Pulse Fabrication of Periodic Nanostructures on Stainless Steel for Surface‐Enhanced Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
Periodic submicron features are fabricated on 304 stainless steel using single and double femtosecond laser pulses. By adjusting polarization, fluence, and inter‐pulse delay, 1D and 2D nanostructures are formed. Enhanced hydrophobicity and dense surface‐enhanced Raman spectroscopy hotspots enable analyte detection down to 10−10 M with good ...
Balaji Baskar, Atiqul Islam Ahad, Carla Berrospe‐Rodriguez, Guillermo Aguilar   +3 more
wiley   +1 more source

Low loss QKD optical scheme for fast polarization encoding

, 2017
We present a new optical scheme for BB84 protocol quantum key distribution (QKD). The proposed setup consists of a compact all-fiber polarization encoding optical scheme based on LiNbO3 phase modulators, single laser source and two single-photon ...
Duplinskiy, A., Kanapin, A., Kurochkin, V., Kurochkin, Y., Ustimchik, V.   +4 more
core   +1 more source

Silicon grating structures for optical fiber interfacing and III-V/silicon opto-electronic components [PDF]

, 2013
In this paper, we review our work on efficient, broadband and polarization independent interfaces between a silicon-on-insulator photonic IC and a single-mode optical fiber based on grating structures.
Baets, Roel, De Koninck, Yannick, Hattasan, Nannicha, Li, Yanlu, Muneeb, Muhammad, Roelkens, Günther, Ryckeboer, Eva, Van Thourhout, Dries, Vermeulen, Diedrik   +8 more
core   +1 more source

Development of Aluminum Scandium Alloys for Hydrogen Storage Valves

Advanced Engineering Materials, EarlyView.
Different aluminum alloy series and various aluminum‐scandium alloys with differing Sc and Zr levels are evaluated for use in hydrogen storage valve production. The alloys undergo hardness testing, optical microscopy, and tensile strength analysis, with hardening behavior studied under varying conditions.
Francisco García‐Moreno, Tillmann Robert Neu, Markus Eberl, Paul Hans Kamm, Hans‐Wolfgang Seeliger   +4 more
wiley   +1 more source

All fiber polarization insensitive detection for spectrometer based optical coherence tomography using optical switch

, 2019
Polarization dependent image artifacts are common in optical coherence tomography imaging. Polarization insensitive detection scheme for swept source based optical coherence tomography systems is well established but is yet to be demonstrated for all ...
Otuya, D., Sharma, G., Singh, K., Tearney, G.   +3 more
core   +1 more source

Vacuum‐Formed Composites Based on a Polyolefin and a High Content of Biomass‐Waste Fillers

Advanced Engineering Materials, EarlyView.
It is shown here that by the use of a very ductile polymer matrix, it is possible to vacuum‐form products that contain up to 25% of hard biofillers with still ductile properties. The results are promising and opens up for the use of engineered biocomposites derived from industrial side‐stream biofillers in vacuum‐formed products. A strategy to increase
Susanna K. Källbom, Tuomo P. Kainulainen, Xin‐Feng Wei, Antonio J. Capezza, Daniel Helgesson, Richard T. Olsson, Mikael S. Hedenqvist   +6 more
wiley   +1 more source

Recent Advances in Fiber-Optic Sensors for the Detection of Inorganic Acidic Gases

Photonic Sensors
An acidic gas is an important basic chemical raw material used for synthesizing fertilizers, insecticides, explosives, dyes, and salts. Alternatively, inorganic acidic gases that leak into the air have harmful effects on the human health, infrastructure,
Lingnan Kong, Yuanke Gong, Xiaoyu Zhong, Yang Liu, Bo Wan, Quanhua Xie, Yuanyuan He, Xiaoling Peng, Haixing Chang, Dengjie Zhong, Huiling Liu, Nianbing Zhong   +11 more
doaj   +1 more source

Optimization for UAV-assisted simultaneous transmission and reception communications in the existence of malicious jammers

Security and Safety
In this paper, we study an unmanned aerial vehicle (UAV)-assisted communication system, where the UAV is dispatched to implement simultaneous transmission and reception (STR) in the existence of multiple malicious jammers.
Huang Zhiyu, Liu Shuzhen, Sheng Zhichao, Yu Hongwen, Masaracchia Antonino   +4 more
doaj   +1 more source

Low-frequency vibration measurement by a dual-frequency DBR fiber laser

Photonic Sensors, 2017
A dual-frequency distributed Bragg reflector (DBR) fiber laser based sensor is demonstrated for low-frequency vibration measurement through the Doppler effect.
Bing Zhang, Linghao Cheng, Yizhi Liang, Long Jin, Tuan Guo, Bai-Ou Guan   +5 more
doaj   +1 more source