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Yongyao Chen
Researcher at University of Maryland, College Park
Publications - 23
Citations - 713
Yongyao Chen is an academic researcher from University of Maryland, College Park. The author has contributed to research in topics: Metamaterial & Photonic crystal. The author has an hindex of 10, co-authored 20 publications receiving 583 citations. Previous affiliations of Yongyao Chen include Tianjin University & Oklahoma State University–Stillwater.
Papers
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Acoustic rainbow trapping
Jie Zhu,Yongyao Chen,Xue-Feng Zhu,Xue-Feng Zhu,Francisco J. Garcia-Vidal,Xiaobo Yin,Weili Zhang,Xiang Zhang +7 more
TL;DR: For the first time, a metamaterial is experimentally demonstrated that traps broadband acoustic waves and spatially separates different frequency components, as the result of dispersion and wave velocity control by designed gradient subwavelength structures.
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Enhanced acoustic sensing through wave compression and pressure amplification in anisotropic metamaterials
TL;DR: This work demonstrates a metamaterial-enhanced acoustic sensing system that achieves more than 20 dB signal-to-noise enhancement (over an order of magnitude enhancement in detection limit) and shows that weak acoustic pulse signals overwhelmed by the noise are successfully recovered.
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Effective surface plasmon polaritons on the metal wire with arrays of subwavelength grooves
Yongyao Chen,Zhenming Song,Yanfeng Li,Minglie Hu,Qirong Xing,Zhigang Zhang,Lu Chai,Chingyue Wang +7 more
TL;DR: This paper explores the existence of electromagnetic surface bound modes on a perfect metal wire milled with arrays of subwavelength grooves and notes that for TM polarization this metallic structure can be equivalent to a dielectric coated metal wire with defined geometrical parameters and effective refractive index of the dielectrics coating.
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Low cost, high performance white-light fiber-optic hydrophone system with a trackable working point.
TL;DR: A working-point trackable fiber-optic hydrophone with high acoustic resolution is proposed and experimentally demonstrated and has a high resolution with a minimum detectable acoustic pressure of 148 Pa and superior stability compared to a system using a tunable laser.
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Solution of the fundamental space-filling mode of photonic crystal fibers: numerical method versus analytical approaches
TL;DR: In this article, the accuracy of the solution of the fundamental space-filling mode of photonic crystal fibers by scalar and vectorial analytical approaches and its effect on the effective index models are investigated.