Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Xu, Yadong"'
Phase gradient metagratings/metasurfaces (PGMs) have provided a new paradigm for light manipulations. In this work, we will show the existence of gauge invariance in PGMs, i.e., the diffraction law of PGMs is independent of the choice of initial valu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9dbef90105a6f7764c554de02c9d39e
In this work we present a new mechanism for designing phase-gradient metasurfaces (PGMs) to control an electromagnetic wavefront with high efficiency. Specifically, we design a transmission-type PGM formed by a periodic subwavelength metallic slit ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::605eaa8346561fb71fb40ce3d6fcafac
Autor:
Tang, Chi, Song, Qi, Chang, Cui-Zu, Xu, Yadong, Ohnuma, Yuichi, Matsuo, Mamoru, Liu, Yawen, Yuan, Wei, Yao, Yunyan, Moodera, Jagadeesh S., Maekawa, Sadamichi, Han, Wei, Shi, Jing
This work demonstrates dramatically modified spin dynamics of magnetic insulator (MI) by the spin-momentum locked Dirac surface states of the adjacent topological insulator (TI) which can be harnessed for spintronic applications. As the Bi-concentrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::401a31cc15be1b1e5de6219416f9b12d
By introducing a new mechanism based on purely imaginary conjugate metamaterials (PICMs), we reveal that bidirectional negative refraction and planar focusing can be obtained using a pair of PICMs, which is a breakthrough to the unidirectional limit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80433531af2e5cb60df3de86396ffdf7
In this letter, we show how transformation optics makes it possible to design what we call conjugate metamaterials. We show that these materials can also serve as substrates for making a subwavelength-resolution lens. The so-called "perfect lens", wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fc6d4ba3685ceeafc7cba0fde76e437
The original carpet cloak [Phys. Rev. Lett. 101, 203901 (2008)] was designed by a numerical method, the quasi-conformal mapping. Therefore its refractive index profile was obtained numerically. In this letter, we propose a new carpet cloak based on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7b0d8e4cc3770ad9fed55541e5444c7
In this letter, we show that a perfect lens can be employed to make multiple objects appear like only one in the far field, leading to a new concept of illusion optics. Numerical simulations are performed to verify the functionalities for both passiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b2d377f2f1a34d6312b51beab5bcb17