公开(公告)号：US20230204986A1

公开(公告)日：2023-06-29

申请号：US18071688

申请日：2022-11-30

申请人： University of Georgia Research Foundation, Inc. ,  Purdue Research Foundation

发明人： Neda Alsadat Aghamiri ,  Yohannes Abate ,  Shriram Ramanathan

IPC分类号： G02F1/00 ,  G02F1/03

CPC分类号： G02F1/0018 ,  G02F1/0305

摘要： A metasurface for propagating phonon polaritons includes correlated oxide on a substrate and a wiring pattern of predetermined geometric shape on the surface thereof. There is a flake of van der Waals phononic exfoliable material on top of the wiring pattern/region. The wiring pattern may be formed by c-AFM or any other appropriate methods.

公开(公告)号：US11409142B2

公开(公告)日：2022-08-09

申请号：US16295879

申请日：2019-03-07

申请人： Vanderbilt University ,  University of Georgia Research Foundation, Inc.

发明人： Joshua D. Caldwell ,  Thomas G. Folland ,  Richard F. Haglund ,  Yohannes Abate

IPC分类号： G02F1/00 ,  G02B26/00 ,  G02F1/03 ,  G02B1/08 ,  G02B1/00 ,  B82Y20/00

摘要： Metallic and dielectric domains in phase change materials (PCM) provide spatially localized changes in the local dielectric environment, enabling launching, reflection, and transmission of hyperbolic polaritons (HPs) at the PCM domain boundaries, and tuning the wavelength of HPs propagating in hyperbolic materials over these domains, providing a methodology for realizing planar, sub-diffractive refractive optics. This approach offers reconfigurable control of in-plane HP propagation to provide design optical functionality because the phase change material can be manipulated by changing the local structure, for example, to manipulate polaritons in the adjacent hyperbolic material, thus tuning the wave propagation properties of the polaritons in the hyperbolic material.

公开(公告)号：US20190278112A1

公开(公告)日：2019-09-12

申请号：US16295879

申请日：2019-03-07

申请人： Vanderbilt University ,  University of Georgia Research Foundation, Inc.

发明人： Joshua D. Caldwell ,  Thomas G. Folland ,  Richard F. Haglund ,  Yohannes Abate

IPC分类号： G02F1/03 ,  G02B1/00 ,  G02B1/08

摘要： Metallic and dielectric domains in phase change materials (PCM) provide spatially localized changes in the local dielectric environment, enabling launching, reflection, and transmission of hyperbolic polaritons (HPs) at the PCM domain boundaries, and tuning the wavelength of HPs propagating in hyperbolic materials over these domains, providing a methodology for realizing planar, sub-diffractive refractive optics. This approach offers reconfigurable control of in-plane HP propagation to provide design optical functionality because the phase change material can be manipulated by changing the local structure, for example, to manipulate polaritons in the adjacent hyperbolic material, thus tuning the wave propagation properties of the polaritons in the hyperbolic material.