公开(公告)号：US09594262B2

公开(公告)日：2017-03-14

申请号：US14388261

申请日：2013-03-12

Applicant: University of Southampton

Inventor： Nikolay Ivanovich Zheludev ,  Kevin Francis MacDonald ,  Jianfa Zhang ,  David John Richardson

IPC: G02B26/00 ,  G02F1/00 ,  G02F1/01 ,  G02B1/00 ,  G02F3/00 ,  G02B5/00

CPC classification number: G02F1/0126 ,  G02B1/002 ,  G02B5/008 ,  G02F3/00 ,  G02F2202/30 ,  G02F2202/36 ,  G02F2203/10 ,  G02F2203/15

Abstract: First and second coherent light beams of the same wavelength are propagated in opposite directions to interact on a sub-wavelength thickness metallic metamaterial layer which is structured with a periodicity such that there is a resonance matched to the wavelength of the coherent beams. The first beam is then able to modulate the intensity of the second beam by modulating the phase and/or intensity of the first beam. The interference of the counter- propagating beams can eliminate or substantially reduce Joule loss of light energy in the metamaterial layer or, on the contrary, can lead to a near total absorption of light, depending on the mutual phase and/or intensity of the interacting beams. A modulation is thus provided without using a non-linear effect.

Abstract translation: 相同波长的第一和第二相干光束以相反的方向传播，以在亚波长厚度的金属超材料层上相互作用，所述亚波长厚度的金属超材料层被构造为具有与相干光束的波长匹配的谐振周期。 第一光束然后能够通过调制第一光束的相位和/或强度来调制第二光束的强度。 反向传播光束的干涉可以消除或显着减少超材料层中焦耳的焦耳损失，相反，可能导致光的接近全部吸收，这取决于相互作用的相互作用和/或强度 梁。 因此提供了不使用非线性效应的调制。

公开(公告)号：US09904008B2

公开(公告)日：2018-02-27

申请号：US15023514

申请日：2014-09-19

Applicant: University of Southampton

Inventor： Eric Rodrigue Numkam Fokoua ,  Francesco Poletti ,  David John Richardson

IPC: G02B6/02

CPC classification number: G02B6/02357 ,  G02B6/02328 ,  G02B6/02347

Abstract: A hollow-core photonic bandgap fiber having a hollow core and a cladding which surrounds the core at a core boundary and comprises a lattice or network of struts and interstitial nodes which together define an array of cavities, wherein a ratio between a difference in a length of a longest and shortest pitch spacing of the nodes at the core boundary to an average pitch spacing at the core boundary is less than about 0.3.

公开(公告)号：US20160236964A1

公开(公告)日：2016-08-18

申请号：US15023541

申请日：2014-09-19

Applicant: UNIVERSITY OF SOUTHAMPTON

Inventor： Eric Rodrigue Numkam Fokoua ,  Francesco Poletti ,  David John Richardson ,  Yong Chen ,  Natalie Violet Wheeler ,  John Richard Hayes ,  Marco Petrovich

IPC: C03B37/012 ,  C03B37/027 ,  G02B6/02

CPC classification number: C03B37/0122 ,  C03B37/02781 ,  C03B2203/04 ,  C03B2203/16 ,  C03B2203/42 ,  G02B6/02328 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02371

Abstract: A method of fabricating a hollow-core photonic-bandgap fiber, comprising the steps of: providing a stack of capillaries, wherein the stack has a hollow core and the capillaries at a boundary of the core comprise a plurality of first, corner core capillaries and a plurality of second, intermediate core capillaries; applying a pressure differential between the corner core capillaries and the intermediate core capillaries, whereby a size of the corner core capillaries can be controlled in relation to the intermediate core capillaries; and reducing the stack to a fiber, wherein the fiber has a hollow core and a cladding which surrounds the core at a core boundary and comprises a lattice or network of struts and interstitial nodes which together define an array of cavities.

Abstract translation: 一种制造中空光子带隙光纤的方法，包括以下步骤：提供一堆毛细管，其中所述堆叠具有中空芯，并且所述芯的边界处的毛细管包括多个第一角芯芯毛细管和 多个第二中间核心毛细管; 在角落芯毛细管和中间核心毛细管之间施加压力差，由此相对于中间核心毛细管可以控制拐角芯毛细管的尺寸; 并且将所述堆叠减小到纤维，其中所述纤维具有中空芯和在芯边界处围绕所述芯的包层，并且包括一起限定空腔阵列的支柱和间隙节点的格子或网络。

公开(公告)号：US20160209586A1

公开(公告)日：2016-07-21

申请号：US15023514

申请日：2014-09-19

Applicant: UNIVERSITY OF SOUTHAMPTON

Inventor： Eric Rodrigue Numkam Fokoua ,  Francesco Poletti ,  David John Richardson

IPC: G02B6/02

CPC classification number: G02B6/02357 ,  G02B6/02328 ,  G02B6/02347

Abstract: A hollow-core photonic bandgap fiber having a hollow core and a cladding which surrounds the core at a core boundary and comprises a lattice or network of struts and interstitial nodes which together define an array of cavities, wherein a ratio between a difference in a length of a longest and shortest pitch spacing of the nodes at the core boundary to an average pitch spacing at the core boundary is less than about 0.3.

Abstract translation: 一种空芯光子带隙光纤，其具有中空芯和包层，其围绕核心边界处的芯并且包括一起限定空腔阵列的支柱和间隙节点的格子或网络，其中长度差 在核心边界处的节点的最长和最短节距间隔与核心边界处的平均间距间隔小于约0.3。

公开(公告)号：US11034607B2

公开(公告)日：2021-06-15

申请号：US15023541

申请日：2014-09-19

Applicant: University of Southampton

Inventor： Eric Rodrigue Numkam Fokoua ,  Francesco Poletti ,  David John Richardson ,  Yong Chen ,  Natalie Violet Wheeler ,  John Richard Hayes ,  Marco Petrovich

IPC: C03B37/012 ,  C03B37/027 ,  G02B6/02

Abstract: A method of fabricating a hollow-core photonic-bandgap fiber, comprising the steps of: providing a stack of capillaries, wherein the stack has a hollow core and the capillaries at a boundary of the core comprise a plurality of first, corner core capillaries and a plurality of second, intermediate core capillaries; applying a pressure differential between the corner core capillaries and the intermediate core capillaries, whereby a size of the corner core capillaries can be controlled in relation to the intermediate core capillaries; and reducing the stack to a fiber, wherein the fiber has a hollow core and a cladding which surrounds the core at a core boundary and comprises a lattice or network of struts and interstitial nodes which together define an array of cavities.

公开(公告)号：US20150049377A1

公开(公告)日：2015-02-19

申请号：US14388261

申请日：2013-03-12

Applicant: UNIVERSITY OF SOUTHAMPTON

Inventor： Nikolay Ivanovich Zheludev ,  Kevin Francis MacDonald ,  Jianfa Zhang ,  David John Richardson

IPC: G02F1/01 ,  G02B5/00 ,  G02B1/00

CPC classification number: G02F1/0126 ,  G02B1/002 ,  G02B5/008 ,  G02F3/00 ,  G02F2202/30 ,  G02F2202/36 ,  G02F2203/10 ,  G02F2203/15

Abstract: First and second coherent light beams of the same wavelength are propagated in opposite directions to interact on a sub-wavelength thickness metallic metamaterial layer which is structured with a periodicity such that there is a resonance matched to the wavelength of the coherent beams. The first beam is then able to modulate the intensity of the second beam by modulating the phase and/or intensity of the first beam. The interference of the counter- propagating beams can eliminate or substantially reduce Joule loss of light energy in the metamaterial layer or, on the contrary, can lead to a near total absorption of light, depending on the mutual phase and/or intensity of the interacting beams. A modulation is thus provided without using a non-linear effect.

Abstract translation: 相同波长的第一和第二相干光束以相反的方向传播，以在亚波长厚度的金属超材料层上相互作用，所述亚波长厚度的金属超材料层被构造为具有与相干光束的波长匹配的谐振周期。 第一光束然后能够通过调制第一光束的相位和/或强度来调制第二光束的强度。 反向传播光束的干涉可以消除或显着减少超材料层中焦耳的焦耳损失，相反，可能导致光的接近全部吸收，这取决于相互作用的相互作用和/或强度 梁。 因此提供了不使用非线性效应的调制。