Results 21 to 30 of about 3,023 (218)

Resonance-enhanced all-optical modulation of WSe2-based micro-resonator

Nanophotonics, 2019
Two-dimensional material tungsten diselenide (WSe2) nanosheets are coated on a microfibre knot resonator (MKR) to achieve an all-optical power modulation functionality.
Zhang Zijian, Chen Guowei, Yang Mingyu, Ou Yunyao, Luo Luqi, Lu Dongqin, Zhang Enze, Guan Heyuan, Lu Huihui, Zhu Wenguo, Yu Jianhui, Dong Jiangli, Qiu Wentao, Chen Zhe, Peng Gangding   +14 more
doaj   +1 more source

High Sensitivity Photon Pressure Sensitive Skin of Piercing Robot Based on Balloon-Shaped Fiber Optic Sensor

IEEE Access
In this paper, a photonic skin sensor based on a balloon-shaped optical fiber structure cascading a Fiber Bragg Grating (FBG) is proposed, which can simultaneously sense pressure and temperature.
Meng Jiao Chi, Hong Juan Yang, Kun Shan Yang, Wei Zhun Dong, Xin Wei Wang, Sen Zhang, Xi Chang Wang, Ling Xin Kong   +7 more
doaj   +1 more source

MoS₂-Nanoflower and Nanodiamond Co-Engineered Surface Plasmon Resonance for Biosensing

Biosensors, 2023
Surface plasmon resonance (SPR) based sensors play an important role in the biological and medical fields, and improving the sensitivity is a goal that has always been pursued.
Yaofei Chen, Xin Xiong, Yu Chen, Lei Chen, Guishi Liu, Wei Xiao, Jifu Shi, Zhe Chen, Yunhan Luo   +8 more
doaj   +1 more source

Computational distributed fiber-optic sensing

Optics Express, 2019
Ghost imaging allows image reconstruction by correlation measurements between a light beam that interacts with the object without spatial resolution and a spatially resolved light beam that never interacts with the object. The two light beams are copies of each other.
Zhou, Da-Peng, Peng, Wei, Chen, Liang, Bao, Xiaoyi   +3 more
openaire   +3 more sources

Rayleigh Fading Suppression in One-Dimensional Optical Scatters

IEEE Access, 2019
A highly coherent wave is favorable for applications in which phase retrieval is necessary, yet a high-coherence wave is prone to encounter Rayleigh fading phenomenon as it passes through a medium of random scatters.
Shengtao Lin, Zinan Wang, Ji Xiong, Yun Fu, Jialin Jiang, Yue Wu, Yongxiang Chen, Chongyu Lu, Yunjiang Rao   +8 more
doaj   +1 more source

Parity-time symmetry in wavelength space within a single spatial resonator

Nature Communications, 2020
Most conventional PT-symmetric systems contain two physically separated modes. Here the authors proposed a PT-symmetric microwave optoelectronic oscillator, where the gain and loss modes are confined in a single spatial resonator, resulting in an ...
Jiejun Zhang, Lingzhi Li, Guangying Wang, Xinhuan Feng, Bai-Ou Guan, Jianping Yao   +5 more
doaj   +1 more source

Research on hole edge crack monitoring based on optical fiber gratings and BP neural network

Hangkong gongcheng jinzhan, 2023
The hole edge crack monitoring of metal structures with holes is of great significance for ensuring flight safety and enhancing the reliability of aircraft structures.
YU Chong, SONG Hao, LIU Chunhong, ZHAO Qidi, FU Jiahao   +4 more
doaj   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Enhanced Photon-Pair Generation Based on Thin-Film Lithium Niobate Doubly Resonant Photonic Crystal Cavity

Photonics
In this work, a doubly resonant photonic crystal (PhC) cavity is proposed to enhance second harmonic generation (SHG) efficiency and photon pair generation rate (PGR). Through the exploration of geometry parameters, a band-edge mode within the light cone
Jinmian Zhu, Fengli Liu, Fangheng Fu, Yuming Wei, Tiefeng Yang, Heyuan Guan, Huihui Lu   +6 more
doaj   +1 more source