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Xiaoyan Shi, Fuming Yang, Enzhu Hou and Zhongzhu Liang
Metalenses, with their unique modulation of light, are in great demand for many potential applications. As a proof-of-principle demonstration, we focus on designing SiO2 metalenses that operate in the deep ultraviolet region, specifically around 193 nm. ...
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Gabriel M. Carral, Jesús Liñares, Eduardo F. Mateo and Xesús Prieto-Blanco
We analyze autocompensation possibilities in entanglement-based QKD protocols. In particular, we study the seminal BBM92 protocol and find that an autocompensating technique is possible, although with severe limitations. This prompts the introduction of ...
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Rahmayati Alindra, Purnomo Sidi Priambodo and Kalamullah Ramli
Light Fidelity (LiFi) technology has gained attention and is growing rapidly today. Utilizing light as a propagation medium allows LiFi to promise a wider bandwidth than existing Wireless Fidelity (WiFi) technology and enables the implementation of cellu...
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Huajian Deng, Hao Wang, Yang Liu and Zhonghe Jin
Horizon-based optical navigation (OPNAV) is an attractive solution for deep space exploration missions, with strong autonomy and high accuracy. In some scenarios, especially those with large variations in spacecraft distance from celestial bodies, the vi...
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Naveed Ur Rehman Junejo, Mariyam Sattar, Saifullah Adnan, Haixin Sun, Abuzar B. M. Adam, Ahmad Hassan and Hamada Esmaiel
In the past decades, researchers/scientists have paid attention to the physical layer of underwater communications (UWCs) due to a variety of scientific, military, and civil tasks completed beneath water. This includes numerous activities critical for co...
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Liang Chen, Yuyi Yang, Zhenheng Wang, Jian Zhang, Shaowu Zhou and Lianghong Wu
Underwater robot perception is a critical task. Due to the complex underwater environment and low quality of optical images, it is difficult to obtain accurate and stable target position information using traditional methods, making it unable to meet pra...
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Syed Agha Hassnain Mohsan, Yanlong Li, Muhammad Sadiq, Junwei Liang and Muhammad Asghar Khan
Oceans cover more than 70% of the Earth?s surface. For various reasons, almost 95% of these areas remain unexplored. Underwater wireless communication (UWC) has widespread applications, including real-time aquatic data collection, naval surveillance, nat...
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Alberto Facchini, Adriana Morana, Luciano Mescia, Cosimo Campanella, Md Mizan Kabir Shuvo, Thierry Robin, Emmanuel Marin, Youcef Ouerdane, Aziz Boukenter and Sylvain Girard
Research on optical amplifiers has highlighted how ionizing radiation negatively impacts the performance of erbium-doped fiber amplifiers (EDFAs), through the degradation of their gain. The amplitudes and kinetics of this degradation are mainly explained...
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Yusuf O. Busari, Yupiter H. P. Manurung, Martin Leitner, Yusuf L. Shuaib-Babata, Muhd F. Mat, Hassan K. Ibrahim, David Simunek and Mohd Shahar Sulaiman
This research presents the numerical evaluation of fatigue crack growth of structural steels S355 and S960 based on Paris? law parameters (C and m) that are experimentally determined with a single edge notched tension (SENT) specimen using optical and cr...
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Michael Gerasimov, Boris Perutski, Egor Dyunin, Jacob Gerasimov and Aharon Friedman
Tera Hertz radiation is currently the most researched and useful area in almost all fields of science and industry. The additional challenge is expressed in the form of radiation, pulses of femto-seconds in length are supposed to pass through a transmiss...
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