Zobrazeno 1 - 10
of 476
pro vyhledávání: '"Pu-Kun Liu"'
Autor:
Feng-Yuan Han, Jin Zhao, Zi-Wen Zhang, Ming-Zhe Chong, Li-Zheng Yin, Tie-Jun Huang, Di Wang, Yun-Hua Tan, Pu-Kun Liu
Publikováno v:
Results in Physics, Vol 35, Iss , Pp 105386- (2022)
Metal-backed materials establish the bridge linking traveling and surface waves for beam manipulation. Based on S-parameters, extracting the constitutive effective parameters (CEPs) is significant for characterizing their electromagnetic (EM) propert
Externí odkaz:
https://doaj.org/article/6cf664bf504f412291e2d9b2c6a02417
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 2, Pp 1-6 (2020)
Terahertz biosensing provides a suitable method to identify biomolecules due to their rich spectral fingerprint in this electromagnetic region. However, owing to the limitations of terahertz sources and detectors, the signal is weak and requires to b
Externí odkaz:
https://doaj.org/article/98a838e1d53a471e905e7ae4d8f40bfb
Publikováno v:
IEEE Access, Vol 7, Pp 181184-181190 (2019)
A free-electron-driven multi-frequency terahertz (THz) radiation based on a super-grating structure is elucidated in this paper. The super-grating, i.e., periodically depth-modulated metallic grating, has a peculiar dispersion characteristic, similar
Externí odkaz:
https://doaj.org/article/6103a5150d9540afa6ee074a33470423
Publikováno v:
Sensors, Vol 21, Iss 14, p 4923 (2021)
In this paper, a displacement sensor with an electrically extremely small size and high sensitivity is proposed based on an elaborately designed metamaterial element, i.e., coupled split-ring resonators (SRRs). The sensor consists of a feeding struct
Externí odkaz:
https://doaj.org/article/4ea7d39582bd49429c3e2743ccb6b604
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract Terahertz applications urgently require high performance and room temperature terahertz sources. The gyrotron based on the principle of electron cyclotron maser is able to generate watt-to-megawatt level terahertz radiation, and becomes an e
Externí odkaz:
https://doaj.org/article/7dbe39bb39254acfaf03e9272e78c415
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 1, Pp 1-10 (2017)
In this paper, waveguide mode conversions in a parallel plate waveguide, rectangular waveguide, and circular waveguide are all demonstrated at terahertz frequencies. Different from the traditional ways to realize mode conversions, an ultracompact des
Externí odkaz:
https://doaj.org/article/4c15784690d249b1bef21c77e311b4da
Publikováno v:
New Journal of Physics, Vol 21, Iss 3, p 033021 (2019)
Regenerated amplification induced by a Fabry–Perot (F–P) cavity is introduced to enhance the interaction efficiency of the free-electron-driven spoof surface plasmon. A direct-current electron beam flies above the meta-grating surface and seeds n
Externí odkaz:
https://doaj.org/article/f60b6474fb104d9d8aabee1451ecc4e2
Autor:
Fan-Hong Li, Chao-Hai Du, Zi-Wen Zhang, Si-Qi Li, Zi-Chao Gao, Pu-Kun Liu, Guo-Wu Ma, Qi-Li Huang, Hong-Ge Ma, Liang Zhang, Adrian W. Cross
Publikováno v:
IEEE Transactions on Electron Devices. 69:3393-3399
In this article, the design of a fourth-harmonic gyrotron with 1-kW-level output power at 1 terahertz (THz) is presented. A unique advantage of this design is that, with a well-optimized magnetic-cusp large-orbit electron gun, the designed gyrotron c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8eb8efada0e4f2e9979819488e1e96ed
https://doi.org/10.1109/ted.2022.3168245
https://doi.org/10.1109/ted.2022.3168245
Publikováno v:
Laser & Photonics Reviews.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3f9db63e8bf5a8333010a69150d1ae7
https://doi.org/10.1002/lpor.202200886
https://doi.org/10.1002/lpor.202200886
Publikováno v:
ACS Applied Materials & Interfaces. 14:21605-21612
Retroreflectors that can accurately redirect the incident waves in free space back along their original channels provide unprecedented opportunities for light manipulation. However, to the best of our knowledge, they suffer from either the bulky size
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83fce4a01fbd145a64af2cd5fe46d4d4
https://doi.org/10.1021/acsami.2c00802
https://doi.org/10.1021/acsami.2c00802