公开(公告)号：EP2488912A1

公开(公告)日：2012-08-22

申请号：EP10823905.4

申请日：2010-10-11

申请人： The Trustees Of Columbia University In The City Of New York

发明人： PERVEZ, Nadia ,  KYMISSIS, Ioannis ,  ZHANG, Jla ,  COX, Marshall

IPC分类号： G02B27/42

CPC分类号： G01J3/0205 ,  G01J3/02 ,  G01J3/0259 ,  G01J3/12 ,  G02B1/005

摘要： Apparatus and methods can include an optical waveguide coupled to a photonic crystal comprising a dielectric material, the photonic crystal located on an exterior surface of the optical waveguide and comprising a first surface including a first array of periodic features on or within the dielectric material, the array extending in at least two dimensions and including an effective dielectric permittivity different from the surrounding dielectric material. In an example, the periodic features include a specified lattice constant, the periodic features configured to extract a portion of propagating optical energy from the waveguide through the photonic crystal, the portion determined at least in part by the specified lattice constant.

公开(公告)号：EP2488912B1

公开(公告)日：2019-07-24

申请号：EP10823905.4

申请日：2010-10-11

申请人： The Trustees Of Columbia University In The City Of New York

发明人： PERVEZ, Nadia ,  KYMISSIS, Ioannis ,  ZHANG, Jla ,  COX, Marshall

IPC分类号： G02B27/42

公开(公告)号：EP3567416A1

公开(公告)日：2019-11-13

申请号：EP19184457.0

申请日：2010-10-11

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

发明人： PERVEZ, Nadia ,  KYMISSIS, Ioannis ,  ZHANG, Jla ,  COX, Marshall

IPC分类号： G02B27/42

摘要： Apparatus and methods can include an optical waveguide coupled to a photonic crystal comprising a dielectric material, the photonic crystal located on an exterior surface of the optical waveguide and comprising a first surface including a first array of periodic features on or within the dielectric material, the array extending in at least two dimensions and including an effective dielectric permittivity different from the surrounding dielectric material. In an example, the periodic features include a specified lattice constant, the periodic features configured to extract a portion of propagating optical energy from the waveguide through the photonic crystal, the portion determined at least in part by the specified lattice constant.