公开(公告)号：US11866847B2

公开(公告)日：2024-01-09

申请号：US17105105

申请日：2020-11-25

申请人： THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

发明人： Fang Liu ,  Xiaoyang Zhu ,  James Hone ,  Sang Hoon Chae

IPC分类号： C30B33/00 ,  B32B7/02 ,  B32B37/18 ,  C30B29/68 ,  B32B37/00 ,  B32B18/00 ,  C30B29/46 ,  C23C14/30 ,  C23C14/16 ,  B32B43/00 ,  C01G41/00 ,  C01G39/06

CPC分类号： C30B33/00 ,  B32B7/02 ,  B32B18/00 ,  B32B37/025 ,  B32B37/18 ,  B32B43/006 ,  C23C14/16 ,  C23C14/30 ,  C30B29/46 ,  C30B29/68 ,  B32B2315/02 ,  C01G39/06 ,  C01G41/00 ,  C01P2004/24

摘要： Systems and methods for generating one or more single crystal monolayers from two-dimensional van der Waals crystals are disclosed herein. Example methods include providing a bulk material including a plurality of van der Waals crystal layers, and exfoliating one or more single crystal monolayers of van der Waals crystal from the bulk material by applying a flexible and flat metal tape to a surface of the bulk material. In certain embodiments, the one or more single crystal monolayers can be assembled into an artificial lattice. The present disclosure also provides techniques for manufacturing flexible and flat metal tape for generating one or more single crystal monolayers from two-dimensional van der Waals crystals. The present disclosure also provides compositions for creating a macroscopic artificial lattice. In certain embodiments, the composition can include two or more macroscopic single crystal monolayers adapted from a bulk van der Waals crystal, where the single crystal monolayers are configured for assembly into an artificial lattice based on one or more properties.

公开(公告)号：US20230296956A1

公开(公告)日：2023-09-21

申请号：US18063352

申请日：2022-12-08

申请人： The Trustees of Columbia University in the City of New York

发明人： Ipshita Datta ,  Michal Lipson ,  Sang Hoon Chae ,  James Hone

IPC分类号： G02F1/225 ,  G02F1/035 ,  G02F1/00

CPC分类号： G02F1/2252 ,  G02F1/035 ,  G02F1/0018 ,  G02F2203/15

摘要： Methods and systems are described for modulating optical signals. An example method may comprise supplying, via a waveguide, an optical signal to a resonator optically coupled to the waveguide. The method may comprise modulating a phase of the optical signal based on at least one layer comprising an electro-optic material having an electro-refractive property and an electro-absorptive property. The modulating of the phase may be based on using the at least one layer to tune a coupling of the waveguide and the resonator between being under-coupled and being over-coupled. The method may comprise outputting, via the waveguide, the modulated optical signal.

公开(公告)号：US20240093407A1

公开(公告)日：2024-03-21

申请号：US18522460

申请日：2023-11-29

申请人： THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

发明人： Fang Liu ,  Xiaoyang Zhu ,  James Hone ,  Sang Hoon Chae

IPC分类号： C30B33/00 ,  B32B7/02 ,  B32B18/00 ,  B32B37/00 ,  B32B37/18 ,  B32B43/00 ,  C23C14/16 ,  C23C14/30 ,  C30B29/46 ,  C30B29/68

CPC分类号： C30B33/00 ,  B32B7/02 ,  B32B18/00 ,  B32B37/025 ,  B32B37/18 ,  B32B43/006 ,  C23C14/16 ,  C23C14/30 ,  C30B29/46 ,  C30B29/68 ,  B32B2315/02 ,  C01G41/00

摘要： Systems and methods for generating one or more single crystal monolayers from two-dimensional van der Waals crystals are disclosed herein. Example methods include providing a bulk material including a plurality of van der Waals crystal layers, and exfoliating one or more single crystal monolayers of van der Waals crystal from the bulk material by applying a flexible and flat metal tape to a surface of the bulk material. In certain embodiments, the one or more single crystal monolayers can be assembled into an artificial lattice. The present disclosure also provides techniques for manufacturing flexible and flat metal tape for generating one or more single crystal monolayers from two-dimensional van der Waals crystals. The present disclosure also provides compositions for creating a macroscopic artificial lattice. In certain embodiments, the composition can include two or more macroscopic single crystal monolayers adapted from a bulk van der Waals crystal, where the single crystal monolayers are configured for assembly into an artificial lattice based on one or more properties.

公开(公告)号：US20210172087A1

公开(公告)日：2021-06-10

申请号：US17105105

申请日：2020-11-25

申请人： THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

发明人： James Hone ,  Fang Liu ,  Xiaoyang Zhu ,  Sang Hoon Chae

IPC分类号： C30B33/00 ,  B32B7/02 ,  C30B29/68 ,  B32B37/18 ,  B32B37/00 ,  B32B43/00 ,  B32B18/00 ,  C30B29/46 ,  C23C14/30 ,  C23C14/16

摘要： Systems and methods for generating one or more single crystal monolayers from two-dimensional van der Waals crystals are disclosed herein. Example methods include providing a bulk material including a plurality of van der Waals crystal layers, and exfoliating one or more single crystal monolayers of van der Waals crystal from the bulk material by applying a flexible and flat metal tape to a surface of the bulk material. In certain embodiments, the one or more single crystal monolayers can be assembled into an artificial lattice. The present disclosure also provides techniques for manufacturing flexible and flat metal tape for generating one or more single crystal monolayers from two-dimensional van der Waals crystals. The present disclosure also provides compositions for creating a macroscopic artificial lattice. In certain embodiments, the composition can include two or more macroscopic single crystal monolayers adapted from a bulk van der Waals crystal, where the single crystal monolayers are configured for assembly into an artificial lattice based on one or more properties.