Results 51 to 60 of about 5,194 (200)

Polarization insensitive phase modulator for quantum cryptosystems

Optics Express, 2006
In this paper, we propose a polarization-insensitive phase modulation scheme based on frequency modulation of light waves using either one or a pair of acousto-optic modulators. A stable Sagnac quantum key distribution (QKD) system employing this technique is also proposed.
Bing, Qi, Lei-Lei, Huang, Hoi-Kwong, Lo, Li, Qian   +3 more
openaire   +2 more sources

Theoretical simulation of a dual-band and dual-broadband terahertz metamaterial absorber using two asymmetric rectangular rings

AIP Advances
In this paper, a dual-band and dual-broadband terahertz (THz) metamaterial absorber (MA) using two asymmetric rectangular rings is proposed and studied.
Kwang-Jin Ri
doaj   +1 more source

Tunable High-Sensitivity Four-Frequency Refractive Index Sensor Based on Graphene Metamaterial

Sensors
As graphene-related technology advances, the benefits of graphene metamaterials become more apparent. In this study, a surface-isolated exciton-based absorber is built by running relevant simulations on graphene, which can achieve more than 98% perfect ...
Xu Bao, Shujun Yu, Wenqiang Lu, Zhiqiang Hao, Zao Yi, Shubo Cheng, Bin Tang, Jianguo Zhang, Chaojun Tang, Yougen Yi   +9 more
doaj   +1 more source

Broadband Bi-Directional All-Dielectric Transparent Metamaterial Absorber

Nanomaterials, 2022
Water-based absorbers have shown great development potential in the past few years. In this paper, an all-dielectric transparent bi-directional water-based broadband metamaterial absorber is designed.
Miao Cao, Xiaojun Huang, Lina Gao, Xiaoyan Li, Linyan Guo, Helin Yang   +5 more
doaj   +1 more source

Generation of Optical Vortices With Polarization-Insensitive Metasurfaces

IEEE Photonics Journal, 2020
Traditionally, optical vortices (OVs) were generated with diffractive optical elements (DOEs) such as spiral phase plate (SPP), fork grating, spatial light modulator (SLM), and liquid crystal display (LCD).
Z. Shen, R. Li, Y. Z. Xue, Z. Y. Qiu, Z. Y. Xiang, J. Y. Zhou, B. F. Zhang   +6 more
doaj   +1 more source

Ultra-Wideband High-Efficiency Solar Absorber and Thermal Emitter Based on Semiconductor InAs Microstructures

Micromachines, 2023
Since the use of chemical fuels is permanently damaging the environment, the need for new energy sources is urgent for mankind. Given that solar energy is a clean and sustainable energy source, this study investigates and proposes a six-layer composite ...
Yanying Zhu, Pinggen Cai, Wenlong Zhang, Tongyu Meng, Yongjian Tang, Zao Yi, Kaihua Wei, Gongfa Li, Bin Tang, Yougen Yi   +9 more
doaj   +1 more source

Study on polarization-insensitive splitter by combining symmetrical structure with matching layer

Scientific Reports
As the polarization state of laser can reflect more information, various types of laser remote sensing techniques have been developed. In order to accurately interpret the detection information, the optical components with polarization insensitivity has ...
Wang wenliang
doaj   +1 more source

Polarization-insensitive silicon microring modulator for single sideband modulation

, 2018
We propose and experimentally demonstrate a polarization-insensitive single sideband modulator based on silicon microring modulators (MRM). The proposed modulator splits and modulates the two orthogonal polarization states of an input laser in a loopback
Shi, Wei, Lyu, Mingyang, Guan, Xun, Rusch, Leslie   +3 more
core   +1 more source

Polarization-insensitive multimode interference coupler based on bricked subwavelength gratings [PDF]

, 2022
The recently proposed bricked patterning enables enhanced performance in integrated photonics devices based on subwavelength gratings, including polarization insensitivity.
Halir, Robert, Schmid, Jens H., Reyes Iglesias, Pedro José, Luque-González, José Manuel, Ortega-Moñux, Alejandro, Molina-Fernández, Íñigo, Wanguemert-Pérez, Juan Gonzalo, Cheben, Pavel, Pérez-Armenta, Carlos   +8 more
core  

Ultra-Broadband Infrared Absorbers Using Iron Thin Layers

IEEE Access, 2020
We theoretically proposed an ultra-broadband infrared light absorber and demonstrated that a high absorption could be obtained in the range of ultra-broadband infrared light using the iron thin layers.
Jing Liu, Wei Chen, Wen-Zhuang Ma, Gao-Xiang Yu, Jia-Chun Zheng, Yu-Shan Chen, Cheng-Fu Yang   +6 more
doaj   +1 more source