Results 31 to 40 of about 10,273 (293)

Reconfigurable ultra-sparse ventilated metamaterial absorber

APL Materials, 2023
The impetus for examining ventilated acoustic metamaterials stems from the demand for increasingly efficient and adaptable noise reduction and sound wave manipulation techniques.
Yangsong Ye, Chaolin Wu, Shijie Kang, Cong Gao, Zhaoxu Yan, Yingzhou Huang, Xiaoxiao Wu   +6 more
doaj   +1 more source

Polarization-maintaining reflection-mode THz time-domain spectroscopy of a polyimide based ultra-thin narrow-band metamaterial absorber [PDF]

, 2018
This paper reports the design, the microfabrication and the experimental characterization of an ultra-thin narrow-band metamaterial absorber at terahertz frequencies.
Astorino, Maria Denise, Fastampa, Renato, Frezza, Fabrizio, Maiolo, Luca, Marrani, Marco, Missori, Mauro, Muzi, Marco, Tedeschi, Nicola, Veroli, Andrea   +8 more
core   +2 more sources

Graphene metasurface based broad band absorber for terahertz sensing applications

Measurement: Sensors, 2023
In this article, a graphene metamaterial based absorber is proposed for controlling and modulating EM waves at terahertz frequency range. Here, we introduced an absorber that can absorb THz radiation over a wide bandwidth of roughly 2.5 THz.
Prasad Nagandla, Pardhasaradhi Pokkunuri, B.T.P. Madhav   +2 more
doaj   +1 more source

Broadband microwave metamaterial absorber with lumped resistor loading

EPJ Applied Metamaterials, 2019
Narrow absorption bandwidth has been a fundamental drawback hindering many metamaterial absorbers for practical applications. In this paper, by loading lumped resistors, we have successfully designed a microwave metamaterial absorber with multioctave ...
Chen Ke, Luo Xinyao, Ding Guowen, Zhao Junming, Feng Yijun, Jiang Tian   +5 more
doaj   +1 more source

CMOS Terahertz Metamaterial Based 64 × 64 Bolometric Detector Arrays [PDF]

, 2017
We present two terahertz detectors composed of microbolometer sensors (vanadium oxide and silicon pn diode) and metamaterial absorbers monolithically integrated into a complementary metal oxide semiconductor (CMOS) process.
Cumming, David R.S., Escorcia Carranza, Ivonne, Gough, John, Grant, James   +3 more
core   +1 more source

A Naked Eye Refractive Index Sensor with a Visible Multiple Peak Metamaterial Absorber

Sensors, 2015
We report a naked eye refractive index sensor with a visible metamaterial absorber. The visible metamaterial absorber consisting of a silver dendritic/dielectric/metal structure shows multiple absorption peaks. By incorporating a gain material (rhodamine
Heli Ma, Kun Song, Liang Zhou, Xiaopeng Zhao   +3 more
doaj   +1 more source

Ultra-broadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab [PDF]

, 2011
We present an ultra broadband thin-film infrared absorber made of saw-toothed anisotropic metamaterial. Absorbtivity of higher than 95% at normal incidence is supported in a wide range of frequencies, where the full absorption width at half maximum is ...
Avitzour Y., Cai W., Chen H. T., Chen H. T., Choy T. C., Cui Y., Cui Y., Dregely D., He J., Huang L., Hyungjin Ma, Jiang T., Jiang Z. H., Jun Xu, Kin Hung Fung, Landy N. I., Li H., Liu N., Liu X., Liu X., Moharam M. G., Nicholas X. Fang, Palik E. D., Sailing He, Schurig D., Sergeant N. P., Shen X., Sun J., Tang T., Tao H., Tsakmakidis K. L., Wang B., Wen Q. Y., Yang J., Yanxia Cui, Ye Y., Yi Jin, Yu Z., Yu Z., Yu Z., Zhang X., Zhu J.   +41 more
core   +2 more sources

Broadband metamaterial absorber based on hybrid multi-mode resonance in mid-wave and long-wave infrared region

Results in Physics, 2022
The infrared radiation of the target and scene needs to be transmitted through the surface atmosphere, and it can be detected by infrared thermal imaging equipment. The mid-wave infrared band (MWIR, 3–5 μm) and the long-wave infrared band (LWIR, 8–14 μm)
Xiaoyan shi, Enzhu Hou, Zhongzhu Liang, Shoutao Zhang, Rui Dai, Wei Xin, Dejia Meng, Hua Liu, Haiyang Xu, Yichun Liu   +9 more
doaj   +1 more source

Metamaterial absorber integrated microfluidic terahertz sensors [PDF]

, 2016
Spatial overlap between the electromagnetic fields and the analytes is a key factor for strong light-matter interaction leading to high sensitivity for label-free refractive index sensing. Usually, the overlap and therefore the sensitivity are limited by
Chen, Qin, Cumming, David R.S., Hu, Xin, Wang, Huacun, Wen, Long, Xu, Gaiqi, Zhang, Yaxin, Zhao, Yuncheng   +7 more
core   +1 more source

Spectrum Absorbency of Metamaterial Perfect Absorber

The International Journal of Integrated Engineering, 2022
A triple-band metamaterial perfect absorber was introduced. The single and simple structure based on gold-bar shaped was designed on the 0.018λ Taconic TLY-5. The gold-bar shaped was designed horizontal initially was then being rotated anti-clockwise from0oto 90oto analyze and understand the change of absorption graph.
Siti Adlina Md Ali, Maisarah Abu, Siti Normi Zabri   +2 more
openaire   +1 more source