Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Zi-Chao Gao"'
Publikováno v:
ACS Photonics. 9:3333-3340
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::454e0bd4c75c357a9872f4d4b0285f1b
https://doi.org/10.1021/acsphotonics.2c00673
https://doi.org/10.1021/acsphotonics.2c00673
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
Autor:
Juan-Feng Zhu, Pu-Kun Liu, Wei E. I. Sha, Fan-Hong Li, Chao-Hai Du, Zi-Wen Zhang, Zi-Chao Gao
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 20:2290-2294
An orbital angular momentum (OAM) antenna based on chiral harmonic diffraction of spoof surface plasmon polaritons (SSPP) is demonstrated in this paper. Due to the diffraction of the helical wire, SSPP is transformed into the high-purity OAM mode. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fc5e86a33fecd37c1fa46a0a5d4beee
https://doi.org/10.1109/lawp.2021.3108553
https://doi.org/10.1109/lawp.2021.3108553
Autor:
Lei Zhang, Adrian W. Cross, Pu-Kun Liu, Zi-Wen Zhang, Juan-Feng Zhu, Feng-Yuan Han, Fan-Hong Li, Zi-Chao Gao, Chao-Hai Du
Publikováno v:
Journal of Lightwave Technology. 39:6231-6238
Terahertz (THz) vortex beams carrying orbital angular momentum (OAM) with high purity and tunable topological charge (TC) will undoubtedly bring extraordinary capacities for advanced imaging or communication systems. We propose a convenient and effic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a4d7bca0df1cbf9b03648b0b8c1d486
https://doi.org/10.1109/jlt.2021.3096727
https://doi.org/10.1109/jlt.2021.3096727
Autor:
Zi-Wen Zhang, Chao-Hai Du, Zi-Chao Gao, Fan-Hong Li, Juan-Feng Zhu, Liang Zhang, Adrian W. Cross, Pu-Kun Liu
Publikováno v:
2022 Photonics & Electromagnetics Research Symposium (PIERS).
A free-electron-based vortex Smith-Purcell radiation with the higher-order topological charge is proposed in this paper based on uniform helical grating. Due to the spiral constraint of azimuth, the evanescent field of the electron beam will be diffr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a2759265a8cefcb3f0904d043c35ae8
https://doi.org/10.1109/piers55526.2022.9792887
https://doi.org/10.1109/piers55526.2022.9792887
Publikováno v:
2022 Photonics & Electromagnetics Research Symposium (PIERS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f904396657322c47cf6916be90a4378
https://doi.org/10.1109/piers55526.2022.9793083
https://doi.org/10.1109/piers55526.2022.9793083
Autor:
Zi-Chao Gao, Fan-Hong Li, Kevin Ronald, Adrian W. Cross, Pu-Kun Liu, Chao-Hai Du, Shi Pan, Lei Zhang
Publikováno v:
IEEE Transactions on Electron Devices. 67:659-666
The gyrotron has already demonstrated the capability of generating high-power coherent electromagnetic (EM) radiation at high frequencies and finds application in fusion plasma heating and magnetic resonance spectroscopy. In this article, we propose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d065e4fc060414add258effc275d293d
https://doi.org/10.1109/ted.2019.2957040
https://doi.org/10.1109/ted.2019.2957040
Autor:
Zi-Wen Zhang, Chao-Hai Du, Zi-Chao Gao, Fan-Hong Li, Juan-Feng Zhu, Liang Zhang, Adrian W. Cross, Pu-Kun Liu
A free-electron-driven terahertz (THz) source based on coherent Smith-Purcell radiation (SPR) assisted by bound state in the continuum (BIC) is proposed in this paper. A reflection-type quasi-BIC with ultrahigh quality factor is formed by continuousl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d0015823533a470f78343ea14a5ea62
https://strathprints.strath.ac.uk/80021/1/Coherent_Terahertz_Smith_Purcell_Radiation_Assisted_by_Quasi_BIC_AAM.pdf
https://strathprints.strath.ac.uk/80021/1/Coherent_Terahertz_Smith_Purcell_Radiation_Assisted_by_Quasi_BIC_AAM.pdf
Autor:
Pu-Kun Liu, Huang Qili, Guo-Wu Ma, Adrian W. Cross, Chao-Hai Du, Fan-Hong Li, Hong-Ge Ma, Zi-Chao Gao, Juan-Feng Zhu, Lei Zhang, Si-Qi Li, Zi-Wen Zhang
High-quality axis-encircling electron beam is essential to drive a high-harmonic gyrotron. A magnetic cusp gun that can generate a low-spread axis-encircling electron beam at an extremely high magnetic-compression ratio was developed for a 1-THz four
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2004ddac9516d2a4a08611cb1b841f2d
https://strathprints.strath.ac.uk/78378/1/Li_etal_IEEE_TED_2021_Development_of_a_magnetic_cusp_gun.pdf
https://strathprints.strath.ac.uk/78378/1/Li_etal_IEEE_TED_2021_Development_of_a_magnetic_cusp_gun.pdf
Publikováno v:
2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
A free-electron-driven terahertz (THz) vortex generator based on Smith-Purcell radiation and Archimedean spiral grating (ASG) is proposed in this paper. The structural parameters are optimized to operate in the THz band. When the electron beam rotate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f6359cf0958ce6062eaa38eb0ce4b8c
https://doi.org/10.1109/irmmw-thz50926.2021.9567519
https://doi.org/10.1109/irmmw-thz50926.2021.9567519