公开(公告)号：US07509014B2

公开(公告)日：2009-03-24

申请号：US12004029

申请日：2007-12-20

申请人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

发明人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

IPC分类号： G02B6/00 ,  G02B6/10

CPC分类号： G02B6/13 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/1225

摘要： The present invention intends to provide a two-dimensional photonic crystal having a high level of mechanical strength and functioning as a high-efficiency resonator. The two-dimensional photonic crystal according to the present invention includes a slab layer 31 under which a clad layer 32 is located. In the slab layer 31, areas 35 having a refractive index different from that of the slab layer 31 are cyclically arranged to create a two-dimensional photonic crystal. A portion of the cyclic arrangement of the areas 35 are omitted to form a point-like defect 36. This defect 36 functions as a resonator at which a specific wavelength of light resonates. An air-bridge cavity 37 facing the point-like defect 36 is formed over a predetermined range of the clad layer 32. In this construction, the clad layer 32 supports the slab layer 31 except for the range over which the air-bridge space 37 is formed. Therefore, the two-dimensional photonic crystal has a high level of mechanical strength. The presence of the air-bridge space 37 under the point-like defect 36 makes it easy to confine light at the point-like defect 36 by the difference in the refractive index between the slab layer 31 and the air. Thus, the point-like defect 36 functions as a high-performance resonator.

摘要翻译： 本发明旨在提供具有高水平机械强度并用作高效率谐振器的二维光子晶体。 根据本发明的二维光子晶体包括平坦层31，覆层32位于其下方。 在板坯层31中，具有不同于板坯层31的折射率的区域35循环地布置以产生二维光子晶体。 区域35的循环布置的一部分被省略以形成点状缺陷36.该缺陷36用作特定波长的光谐振的谐振器。 在包覆层32的预定范围上形成面向点状缺陷36的空气桥腔37.在该结构中，包覆层32支撑板层31，除了空气桥空间37 形成了。 因此，二维光子晶体具有高水平的机械强度。 点状缺陷36之下的空气桥空间37的存在使得容易通过板状层31和空气之间的折射率差来限制点状缺陷36处的光。 因此，点状缺陷36用作高性能谐振器。

公开(公告)号：US20080145012A1

公开(公告)日：2008-06-19

申请号：US12004029

申请日：2007-12-20

申请人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

发明人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

IPC分类号： G02B6/10

CPC分类号： G02B6/13 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/1225

摘要： The present invention intends to provide a two-dimensional photonic crystal having a high level of mechanical strength and functioning as a high-efficiency resonator. The two-dimensional photonic crystal according to the present invention includes a slab layer 31 under which a clad layer 32 is located. In the slab layer 31, areas 35 having a refractive index different from that of the slab layer 31 are cyclically arranged to create a two-dimensional photonic crystal. A portion of the cyclic arrangement of the areas 35 are omitted to form a point-like defect 36. This defect 36 functions as a resonator at which a specific wavelength of light resonates. An air-bridge cavity 37 facing the point-like defect 36 is formed over a predetermined range of the clad layer 32. In this construction, the clad layer 32 supports the slab layer 31 except for the range over which the air-bridge space 37 is formed. Therefore, the two-dimensional photonic crystal has a high level of mechanical strength. The presence of the air-bridge space 37 under the point-like defect 36 makes it easy to confine light at the point-like defect 36 by the difference in the refractive index between the slab layer 31 and the air. Thus, the point-like defect 36 functions as a high-performance resonator.

摘要翻译： 本发明旨在提供具有高水平机械强度并用作高效率谐振器的二维光子晶体。 根据本发明的二维光子晶体包括平坦层31，覆层32位于其下方。 在板坯层31中，具有不同于板坯层31的折射率的区域35循环地布置以产生二维光子晶体。 区域35的循环布置的一部分被省略以形成点状缺陷36。 该缺陷36用作特定波长的光谐振的谐振器。 在包层32的预定范围上形成面向点状缺陷36的空气桥腔37。 在这种结构中，除了形成空气桥隔间37的范围之外，包覆层32支撑板层31。 因此，二维光子晶体具有高水平的机械强度。 点状缺陷36之下的空气桥空间37的存在使得容易通过板状层31和空气之间的折射率差来限制点状缺陷36处的光。 因此，点状缺陷36用作高性能谐振器。

公开(公告)号：US07333703B2

公开(公告)日：2008-02-19

申请号：US10569879

申请日：2004-08-27

申请人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

发明人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

IPC分类号： G02B6/10 ,  C03B37/023 ,  C03B37/022 ,  C03B37/027

CPC分类号： G02B6/13 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/1225

摘要： The present invention intends to provide a two-dimensional photonic crystal having a high level of mechanical strength and functioning as a high-efficiency resonator. The two-dimensional photonic crystal according to the present invention includes a slab layer 31 under which a clad layer 32 is located. In the slab layer 31, areas 35 having a refractive index different from that of the slab layer 31 are cyclically arranged to create a two-dimensional photonic crystal. A portion of the cyclic arrangement of the areas 35 are omitted to form a point-like defect 36. This defect 36 functions as a resonator at which a specific wavelength of light resonates. An air-bridge cavity 37 facing the point-like defect 36 is formed over a predetermined range of the clad layer 32. In this construction, the clad layer 32 supports the slab layer 31 except for the range over which the air-bridge space 37 is formed. Therefore, the two-dimensional photonic crystal has a high level of mechanical strength. The presence of the air-bridge space 37 under the point-like defect 36 makes it easy to confine light at the point-like defect 36 by the difference in the refractive index between the slab layer 31 and the air. Thus, the point-like defect 36 functions as a high-performance resonator.

摘要翻译： 本发明旨在提供具有高水平机械强度并用作高效率谐振器的二维光子晶体。 根据本发明的二维光子晶体包括平坦层31，覆层32位于其下方。 在板坯层31中，具有不同于板坯层31的折射率的区域35循环地布置以产生二维光子晶体。 区域35的循环布置的一部分被省略以形成点状缺陷36.该缺陷36用作特定波长的光谐振的谐振器。 在包覆层32的预定范围上形成面向点状缺陷36的空气桥腔37.在该结构中，包覆层32支撑板层31，除了空气桥空间37 形成了。 因此，二维光子晶体具有高水平的机械强度。 点状缺陷36之下的空气桥空间37的存在使得容易通过板状层31和空气之间的折射率差来限制点状缺陷36处的光。 因此，点状缺陷36用作高性能谐振器。

公开(公告)号：US07509013B2

公开(公告)日：2009-03-24

申请号：US11795991

申请日：2006-01-31

申请人： Susumu Noda ,  Takashi Asano ,  Seiichi Takayama ,  Ranko Hatsuda

发明人： Susumu Noda ,  Takashi Asano ,  Seiichi Takayama ,  Ranko Hatsuda

IPC分类号： G02B6/10

CPC分类号： B82Y20/00 ,  G02B6/1225

摘要： An objective of the present invention is to provide a two-dimensional photonic crystal in which a complete photonic band gap (PBG), i.e. a photonic band gap that is effective for both a TE-polarized light and a TM-polarized light within a predetermined wavelength range, is created and an adequate width of the complete PBG can be ensured. A slab-shaped body 21 consisting of a birefringent material is provided with holes 22 periodically arranged in a triangular lattice pattern, where a plane shape of the hole is an equilateral triangle. The PBG for the TE-polarized light and the PBG for the TM-polarized light can be independently set by adjusting anisotropy in the refractive index of the body 21, i.e. a refractive index in a direction vertical to the body 21 and a refractive index in a direction parallel to the body 21. This construction makes it possible to ensure an adequate width of the complete PBG.

摘要翻译： 本发明的目的是提供一种二维光子晶体，其中完整的光子带隙（PBG），即对预定的TE偏振光和TM偏振光两者都有效的光子带隙 波长范围，并且可以确保完整PBG的足够宽度。 由双折射材料构成的板状体21设置有以三角形格子图案周期性排列的孔22，孔的平面形状为等边三角形。 用于TE偏振光的PBG和用于TM偏振光的PBG可以通过调节主体21的折射率的各向异性，即垂直于主体21的方向上的折射率和折射率，独立地设定 平行于主体21的方向。这种结构使得可以确保完整的PBG的宽度。

公开(公告)号：US20080112679A1

公开(公告)日：2008-05-15

申请号：US11795991

申请日：2006-01-31

申请人： Susumu Noda ,  Takashi Asano ,  Seiichi Takayama ,  Ranko Hatsuda

发明人： Susumu Noda ,  Takashi Asano ,  Seiichi Takayama ,  Ranko Hatsuda

IPC分类号： G02B6/10

CPC分类号： B82Y20/00 ,  G02B6/1225

摘要： An objective of the present invention is to provide a two-dimensional photonic crystal in which a complete photonic band gap (PBG), i.e. a photonic band gap that is effective for both a TE-polarized light and a TM-polarized light within a predetermined wavelength range, is created and an adequate width of the complete PBG can be ensured. A slab-shaped body 21 consisting of a birefringent material is provided with holes 22 periodically arranged in a triangular lattice pattern, where a plane shape of the hole is an equilateral triangle. The PBG for the TE-polarized light and the PBG for the TM-polarized light can be independently set by adjusting anisotropy in the refractive index of the body 21, i.e. a refractive index in a direction vertical to the body 21 and a refractive index in a direction parallel to the body 21. This construction makes it possible to ensure an adequate width of the complete PBG.

摘要翻译： 本发明的目的是提供一种二维光子晶体，其中完整的光子带隙（PBG），即对预定的TE偏振光和TM偏振光两者都有效的光子带隙 波长范围，并且可以确保完整PBG的足够宽度。 由双折射材料构成的板状体21设置有以三角形格子图案周期性排列的孔22，孔的平面形状为等边三角形。 用于TE偏振光的PBG和用于TM偏振光的PBG可以通过调节主体21的折射率的各向异性，即垂直于主体21的方向上的折射率和折射率，独立地设定 平行于主体21的方向。这种结构使得可以确保完整的PBG的宽度。

公开(公告)号：US20070009219A1

公开(公告)日：2007-01-11

申请号：US10569879

申请日：2004-08-27

申请人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

发明人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

IPC分类号： G02B6/10

CPC分类号： G02B6/13 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/1225

摘要： The present invention intends to provide a two-dimensional photonic crystal having a high level of mechanical strength and functioning as a high-efficiency resonator. The two-dimensional photonic crystal according to the present invention includes a slab layer 31 under which a clad layer 32 is located. In the slab layer 31, areas 35 having a refractive index different from that of the slab layer 31 are cyclically arranged to create a two-dimensional photonic crystal. A portion of the cyclic arrangement of the areas 35 are omitted to form a point-like defect 36. This defect 36 functions as a resonator at which a specific wavelength of light resonates. An air-bridge cavity 37 facing the point-like defect 36 is formed over a predetermined range of the clad layer 32. In this construction, the clad layer 32 supports the slab layer 31 except for the range over which the air-bridge space 37 is formed. Therefore, the two-dimensional photonic crystal has a high level of mechanical strength. The presence of the air-bridge space 37 under the point-like defect 36 makes it easy to confine light at the point-like defect 36 by the difference in the refractive index between the slab layer 31 and the air. Thus, the point-like defect 36 functions as a high-performance resonator.

摘要翻译： 本发明旨在提供具有高水平机械强度并用作高效率谐振器的二维光子晶体。 根据本发明的二维光子晶体包括平坦层31，覆层32位于其下方。 在板坯层31中，具有不同于板坯层31的折射率的区域35循环地布置以产生二维光子晶体。 区域35的循环布置的一部分被省略以形成点状缺陷36.该缺陷36用作特定波长的光谐振的谐振器。 在包覆层32的预定范围上形成面向点状缺陷36的空气桥腔37.在该结构中，包覆层32支撑板层31，除了空气桥空间37 形成了。 因此，二维光子晶体具有高水平的机械强度。 点状缺陷36之下的空气桥空间37的存在使得容易通过板状层31和空气之间的折射率差来限制点状缺陷36处的光。 因此，点状缺陷36用作高性能谐振器。