Subwavelength absorbers
http://www.irla.cn/en/article/doi/10.3788/IRLA20240087 WebWavelength-selective uncooled infrared (IR) sensors are highly promising for a wide range of applications, such as fire detection, gas analysis and biomedical analysis. We have recently developed wavelength-selective uncooled IR sensors using square lattice two-dimensional plasmonic absorbers (2-D PLAs). The PLAs consist of a periodic 2-D lattice of Au-based …
Subwavelength absorbers
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WebWe report, both theoretically and experimentally, a type of ultra-thin metasurface-based low-frequency sound absorber with bandwidth optimization. Such a metasurface unit consists … WebRecently perfect absorbers (PAs) have received significant interest due to their characteristics of complex electric permittivity (ε) and magnetic permeability (μ). By rationally designing these artificial structures, the impedance of the perfect absorber can be matched to free space with an independent adjustment in the electric and magnetic ...
Web20 Sep 2016 · American Institute of Physics (AIP) Summary: When it comes to low-frequency sound waves, traditional sound-absorbing materials tend to be undesirably … Web27 Jul 2024 · Low-frequency sound attenuation by absorbers with deep-subwavelength scales has great engineering significance but remains challenging to achieve especially …
WebEach unit cell is printed on both sides of an FR-4 substrate. A prototype absorber was fabricated with a planar array of 75 × 42 unit cells. Both simulations and experiments … WebNanophotonics research has focused recently on the ability of non-linear optical processes to mediate and transform optical signals in a myriad of novel devices, including optical modulators,...
WebAshwin K. Iyer received the Ph.D. degree in electrical engineering from the University of Toronto, Canada in 2009. He joined the faculty of the University of Alberta Dept. of Electrical & Computer Engineering in the fall of the same year and now holds the titles of Professor and Vice Chair (ECE). He leads a team of talented graduate students and postdoctoral …
Web5 Apr 2024 · Acoustic metasurface-based perfect absorber with deep subwavelength thickness. Appl Phys Lett 2016; 108(6): 063502. Crossref. Google Scholar. 41. ISO 10534 … how to work out isotopic massWeb5 Nov 2024 · Metamaterial perfect absorbers have received significant attention owing to their ability of achieving complete absorption of the electromagnetic waves with deeply subwavelength profiles. In this … how to work out isoelectric pointWeb3 Sep 2024 · In our case, the overall thickness of the absorber is 14.2 mm, only 5% over the minimum thickness dictated by the causality limit. This theoretical limit also plays a … how to work out isomersWebDr. Emre Ozan Polat is an Assistant Professor at the Mechatronics Engineering Department of Kadir Has University. He works on quantum material integrated sensor systems and optoelectronic applications of two-dimensional materials. His PhD research (Bilkent University, Physics) reports the development of graphene-based optoelectronic devices … originpro newcastle universityWebAbstract. The development of radiation-absorbent materials and devices for millimeter and submillimeter astronomy instruments is a research area of significant interest that has s how to work out isolation periodWebexploited to design thin sound absorbers at deep subwavelength frequencies. In this work, we show that the combination of the slow sound conditions with the space-coiling and/or coupled-resonator mechanisms allows further reducing the panel thickness and overcoming the narrow-band performance imposed by the resonant nature of the wave dispersion. how to work out itzaWeb5 Apr 2024 · Acoustic metasurface-based perfect absorber with deep subwavelength thickness. Appl Phys Lett 2016; 108(6): 063502. Crossref. Google Scholar. 41. ISO 10534-2. 2001. Acoustics-determination of sound absorption coefficient and impedance in impedance tubes-Part 2: Transferfunction method. Google Scholar. Cite article how to work out isosceles triangle