Zobrazeno 1 - 10
of 142
pro vyhledávání: '"tunable absorption"'
Autor:
Chenjie Dai, Xinglong Li, Wen‐xing Yang, Yan Chen, Dingshan Zheng, Nian Cheng, Tao Shui, Huafeng Zhang, Zhongyang Li
Publikováno v:
Advanced Science, Vol 11, Iss 46, Pp n/a-n/a (2024)
Abstract Hydrogel nanophotonic devices exhibit attractive tunable capabilities in structural coloration and optical display. However, current hydrogel‐based tunable strategies are mostly based on a single physical mechanism, and it remains a challe
Externí odkaz:
https://doaj.org/article/12858627169e471e8b86b33a4e1fbe55
Autor:
Zhipeng Ding, Wei Su, Yinlong Luo, Lipengan Ye, Wenlong Li, Yuanhang Zhou, Bin Tang, Hongbing Yao
Publikováno v:
Materials & Design, Vol 234, Iss , Pp 112331- (2023)
Although the development of graphene broadband terahertz (THz) absorbers is relatively mature, studies focusing on modulating the absorption window remain limited. Existing research has mainly concentrated on achieving absorption window switching via
Externí odkaz:
https://doaj.org/article/90a8bbd59d434835928fe83f205d1830
Publikováno v:
Photonics, Vol 11, Iss 3, p 225 (2024)
In this paper, a five-band metamaterial absorber with a tunable function in a terahertz band is proposed, which consists of a gold grounding layer, a polyimide dielectric layer, and a periodic patterned graphene layer. The patterned graphene layer is
Externí odkaz:
https://doaj.org/article/7f3cf5ef518d4b27b7ff73ea3b05e92c
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Akademický článek
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Autor:
Sangjun Lee, Sangin Kim
Publikováno v:
Nanomaterials, Vol 13, Iss 22, p 2922 (2023)
As a perfect graphene absorber without any external mirrors, we proposed asymmetric slot-assisted grating structures supporting two degenerate resonant modes of the guided-mode resonances (GMR) and the quasi-bound states in the continuum (quasi-BIC).
Externí odkaz:
https://doaj.org/article/94d35953c16d4d939fe91345b5e6a90a
Autor:
Sangjun Lee, Sangin Kim
Publikováno v:
Applied Sciences, Vol 13, Iss 17, p 9708 (2023)
Owing to its exceptional electronic and optical properties, graphene has attracted extensive attention among researchers in the development of high-performance optoelectronic devices. However, the light absorption of pure graphene is very poor, limit
Externí odkaz:
https://doaj.org/article/579a4468ed50424e8fa0012fa13cd9e0
Publikováno v:
Photonics, Vol 10, Iss 1, p 14 (2022)
A near-perfect narrow-band graphene-based absorber was fabricated using a resonant system integrated with an asymmetric meta-grating at a wavelength of 1550 nm. By optimizing the gap between the two grating strips, the absorption of monolayer graphen
Externí odkaz:
https://doaj.org/article/ddf2fdfcc3834f70b515971628a930cd
Publikováno v:
Nanomaterials, Vol 12, Iss 13, p 2135 (2022)
At frequencies below 1 GHz, conventional microwave absorbers are limited by their large thickness or narrow absorption bandwidth; therefore, new techniques for efficient absorption for the lower microwave band are highly demanded. Here, we propose an
Externí odkaz:
https://doaj.org/article/474b2b5202aa4d828f1a8593e91632d0
Akademický článek
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