公开(公告)号：US20190310408A1

公开(公告)日：2019-10-10

申请号：US16440090

申请日：2019-06-13

Applicant: NGK INSULATORS, LTD.

Inventor： Jungo KONDO ,  Naotake OKADA ,  Shoichiro YAMAGUCHI ,  Keiichiro ASAI ,  Shuhei HIGASHIHARA ,  Yuichi Iwata ,  Tetsuya Ejiri ,  Akira Hamajima

IPC: F21V8/00

Abstract: A phosphor element comprises: a support substrate; an optical waveguide for propagating an excitation light through the waveguide, the optical waveguide comprising a phosphor generating a fluorescence, and the optical waveguide comprising an emission side end surface emitting the excitation light and the fluorescence, an opposing end surface opposing the emission side end surface, a bottom surface, a top surface opposing the bottom surface and a pair of side surfaces; a bottom surface side clad layer covering the bottom surface of the optical waveguide; a top surface side clad layer covering the top surface of the optical waveguide; side surface side clad layers covering the side surfaces of the optical waveguide, respectively; a top surface side reflection film covering the top surface side clad layer; side surface side reflection films covering the side surface side clad layers, respectively; and a bottom surface side reflection film provided between the support substrate and the bottom surface side clad layer.

公开(公告)号：US20150192458A1

公开(公告)日：2015-07-09

申请号：US14665124

申请日：2015-03-23

Applicant: NGK INSULATORS, LTD.

Inventor： Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC: G01J1/04 ,  G01N21/3586 ,  G01J1/38

CPC classification number: G01J1/0407 ,  G01J3/021 ,  G01J3/42 ,  G01N21/3581 ,  G01N21/3586 ,  G02F1/03

Abstract: Provided a terahertz-wave detection element with high spatial resolution and suppressing a crack occurrence. A method of manufacturing the detection element capable of detecting a spatial intensity distribution of a terahertz wave includes: a step of forming an oxide layer on one main surface of a first substrate consisting of an electro-optic crystal; a step of joining the one main surface of the first substrate and a second substrate by an adhesive consisting; a step of thinning the first substrate of a joined body, to a thickness of 1-30 μm by polishing the first substrate; and a step of obtaining a large number of terahertz-wave detection elements by cutting the joined body. The oxide layer is formed such that the first substrate becomes convex to a side of the one main surface by causing a tensile stress to act on it.

Abstract translation: 提供了具有高空间分辨率并且抑制裂纹发生的太赫兹波检测元件。 一种制造能够检测太赫兹波的空间强度分布的检测元件的方法包括：在由电光晶体组成的第一基板的一个主表面上形成氧化物层的步骤; 通过由粘合剂组成的粘合剂将第一基板的一个主表面和第二基板接合的步骤; 通过研磨第一基板，使接合体的第一基板变薄至厚度为1-30μm的步骤; 以及通过切割接合体获得大量的太赫兹波检测元件的步骤。 形成氧化物层，使得第一基板通过使拉伸应力作用在凸起到一个主表面的一侧。

公开(公告)号：US11561333B2

公开(公告)日：2023-01-24

申请号：US16994014

申请日：2020-08-14

Applicant: NGK INSULATORS, LTD.

Inventor： Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC: F21V8/00 ,  F21V9/08

Abstract: A white light generating device, for generating white light from an excitation light of a laser light having a wavelength of from 280 nm-495 nm, includes a fluorescent body generating a fluorescence having a wavelength longer than a wavelength of the excitation light. The fluorescent body includes an emission-side end surface emitting excitation light and fluorescence, an opposing end surface on an opposite side of the emission-side end surface, and an outer peripheral surface. The emission-side end surface has an area larger than an area of the opposing end surface, and the outer peripheral surface of the fluorescent body includes a part inclined with respect to a central axis of the fluorescent body by from 3.4°-23° over an entire periphery of the fluorescent body. The emission-side end surface has an area of from 0.3 mm2-1.52 mm2.

公开(公告)号：US20150192474A1

公开(公告)日：2015-07-09

申请号：US14663543

申请日：2015-03-20

Applicant: NGK INSULATORS, LTD.

Inventor： Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC: G01J5/38 ,  B32B38/00 ,  B32B37/12 ,  G01J5/08 ,  B32B37/18

CPC classification number: G01J5/38 ,  B32B37/12 ,  B32B37/18 ,  B32B38/0004 ,  B32B2038/0064 ,  B32B2457/00 ,  G01J5/0896 ,  G01N21/3581

Abstract: Provided a terahertz-wave detection element in which the occurrence of warping and a crack is suppressed. The detection element includes: an electro-optic crystal layer of a thickness 1-10 μm in which a refractive index at an incident position of the terahertz wave changes in accordance with incident intensity; a substrate supporting the electro-optic crystal layer; a resin layer of a thickness 0.1-1 μm that joins them; and a total reflection layer formed on a surface of the electro-optic crystal, consisting of a first dielectric multilayer film and having a thickness not less than 1 μm. The detection element detects a spatial-characteristics distribution generated in probe light in superposition with the terahertz wave, thereby to detect the spatial intensity distribution of the incident terahertz wave. A ratio of a thickness of the resin layer to that of the total reflection layer is set not more than ⅓.

Abstract translation: 提供抑制发生翘曲和裂纹的太赫兹波检测元件。 检测元件包括：厚度为1-10μm的电光晶体层，其中太赫兹入射位置处的折射率根据入射强度而变化; 支撑电光晶体层的基板; 连接它们的厚度为0.1-1μm的树脂层; 以及形成在电光晶体的表面上的由第一电介质多层膜构成且厚度不小于1μm的全反射层。 检测元件检测在与太赫兹波叠加的探测光中产生的空间特性分布，从而检测入射的太赫兹波的空间强度分布。 树脂层的厚度与全反射层的厚度的比率设定为不大于1/3。

公开(公告)号：US20150192457A1

公开(公告)日：2015-07-09

申请号：US14665090

申请日：2015-03-23

Applicant: NGK INSULATORS, LTD.

Inventor： Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri ,  Hiroki Kobayashi

IPC: G01J1/04 ,  B32B38/00 ,  B32B37/24 ,  G01N21/3586 ,  G01J1/38

CPC classification number: G01J1/0407 ,  B32B37/24 ,  B32B38/0004 ,  B32B2037/243 ,  B32B2038/0064 ,  B32B2457/00 ,  B32B2551/00 ,  G01J1/38 ,  G01J3/42 ,  G01N21/3581 ,  G01N21/3586 ,  G01N2201/06113 ,  G01N2201/067 ,  G02F1/0126

Abstract: Provided a terahertz-wave detection element having high spatial resolution in which the occurrence of warping and a crack is suitably suppressed. The detection element includes: an electro-optic crystal layer in which a refractive index at an incident position of the terahertz wave changes in accordance with incident intensity of the terahertz wave; and a substrate supporting the electro-optic crystal layer. The detection element detects a spatial-characteristics distribution generated in probe light in superposition with the terahertz wave, thereby to detect the spatial intensity distribution of the incident terahertz wave. A joined part between the electro-optic crystal and the supporting substrate is an amorphous layer consisting of an oxide including a constituent element of the electro-optic crystal and the substrate, and also having a thickness of 1-50 nm. A thickness of the electro-optic crystal layer is 1-30 μm.

Abstract translation: 提供了具有高空间分辨率的太赫兹波检测元件，其中适当地抑制翘曲和裂纹的发生。 检测元件包括：电光晶体层，其中太赫兹入射位置处的折射率根据太赫兹波的入射强度而变化; 以及支撑电光晶体层的基板。 检测元件检测在与太赫兹波叠加的探测光中产生的空间特性分布，从而检测入射的太赫兹波的空间强度分布。 电光晶体和支撑衬底之间的接合部分是由包括电光晶体的构成元素和衬底的氧化物组成的非晶层，并且还具有1-50nm的厚度。 电光晶体层的厚度为1-30μm。

公开(公告)号：US08730565B2

公开(公告)日：2014-05-20

申请号：US14021014

申请日：2013-09-09

Applicant: NGK Insulators, Ltd.

Inventor： Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC: G02F1/35 ,  G02F2/02 ,  H01S5/06

CPC classification number: G02F1/353 ,  G02F1/3534 ,  G02F2201/30 ,  G02F2203/13

Abstract: A device for irradiating an electromagnetic wave irradiates an electromagnetic wave having a target frequency in a range of 0.1 THz to 30 THz to the outside of a non-linear optical crystal. The device includes a main body composed of a non-linear optical crystal and a sub wavelength grating structure formed on a surface of the main body. The sub wavelength grating structure includes column shaped bodies regularly arranged on a surface of the main body. Each of the column shaped bodies includes a constant width part having a constant width and a base part provided from the surface toward the constant width part. A surface of the base part has a shape of an arc having a center of curvature in the outside of the base part viewed in a cross section of the column shaped body cut along a direction in which the column shaped bodies are arranged.

Abstract translation: 用于照射电磁波的装置将目标频率在0.1THz至30THz范围内的电磁波照射到非线性光学晶体的外部。 该装置包括由主体的表面上形成的非线性光学晶体和子波长光栅结构构成的主体。 子波长光栅结构包括规则地布置在主体表面上的列状体。 每个柱状体包括具有恒定宽度的恒定宽度部分和从表面向恒定宽度部分提供的基部。 基部的表面具有在沿着柱状体的排列方向切割的柱状体的截面中观察到的在基部的外侧具有曲率中心的弧形的形状。

公开(公告)号：US20140010493A1

公开(公告)日：2014-01-09

申请号：US14021148

申请日：2013-09-09

Applicant: NGK INSULATORS, LTD.

Inventor： Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC: G02F1/035

CPC classification number: G02F1/035 ,  G01N15/1434 ,  G02B6/122 ,  G02F1/2252 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/05 ,  G02F2201/063 ,  G02F2201/066 ,  G02F2201/127 ,  G02F2202/28 ,  G02F2203/21 ,  G02F2203/50 ,  G02F2203/60

Abstract: An optical modulation device 1 includes a supporting body 2 including a pair of grooves 2b, 2c and a protrusion 2d between the grooves, a ridge par 6 including a channel type optical wave guide capable of multi mode propagation, a first side plate part 3A formed in a first side of the ridge part 6, a second side plate part 3B formed in a second side of the ridge part, a first adhesive layer 4A adhering the first side plate part 3A and the supporting body 2, a second adhesive layer 4B adhering the second side plate part 3B and the supporting body 2, and a third adhesive layer 4C adhering the ridge part 6 and the protrusion 2d. The device 1 further includes a first electrode 7A provided on a side face 6b of the ridge part on the first groove side, and a side face 3b and an upper face 3c of the first side plate part, and a second electrode 7B provided on a side face 6c of the ridge part 6 in the second groove side, the second groove 2c and a side face 3b and an upper face 3c of the second side plate part 3B. The first electrode 7A and the second electrode 7B apply a modulation voltage modulating light propagating in the channel type optical wave guide.

Abstract translation: 光调制装置1包括支撑体2，该支撑体2包括一对槽2b，2c和槽之间的突起2d，包括能够进行多模传播的通道型光波导的脊6，形成的第一侧板部3A 在脊部6的第一侧，形成在脊部的第二侧的第二侧板部3B，附着有第一侧板部3A和支撑体2的第一粘合层4A，附着有第二粘合层4B的第二粘合层4B 第二侧板部3B和支撑体2，以及粘附脊部6和突起2d的第三粘合层4C。 装置1还包括设置在第一槽侧的脊部的侧面6b上的第一电极7A和第一侧板部的侧面3b和上表面3c，以及设置在第一槽部侧的第二电极7B 第二槽侧的脊部6的侧面6c，第二槽2c和侧面3b以及第二侧板部3B的上表面3c。 第一电极7A和第二电极7B施加在通道型光波导中传播的调制电压调制光。

公开(公告)号：US11525950B2

公开(公告)日：2022-12-13

申请号：US16994014

申请日：2020-08-14

Applicant: NGK INSULATORS, LTD.

Inventor： Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC: F21V8/00 ,  F21V9/08

Abstract: A white light generating device, for generating white light from an excitation light of a laser light having a wavelength of from 280 nm-495 nm, includes a fluorescent body generating a fluorescence having a wavelength longer than a wavelength of the excitation light. The fluorescent body includes an emission-side end surface emitting excitation light and fluorescence, an opposing end surface on an opposite side of the emission-side end surface, and an outer peripheral surface. The emission-side end surface has an area larger than an area of the opposing end surface, and the outer peripheral surface of the fluorescent body includes a part inclined with respect to a central axis of the fluorescent body by from 3.4°-23° over an entire periphery of the fluorescent body. The emission-side end surface has an area of from 0.3 mm2-1.52 mm2.

公开(公告)号：US20130241351A1

公开(公告)日：2013-09-19

申请号：US13789837

申请日：2013-03-08

Applicant: NGK INSULATORS, LTD.

Inventor： Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC: H01L41/09 ,  H01L41/332

CPC classification number: H01L41/09 ,  G01P2015/0828 ,  H01L41/1136 ,  H01L41/313 ,  H01L41/332

Abstract: A thin plate type vibration device 10 includes a vibration layer 2 composed of an oxide single crystal. The vibration layer 2 includes a first main face 2a and a second main face 2b, and further includes a fixed end part 2e, a free end part 2c and a central vibration part 2d provided between the fixed end part and free end part. The device 10 further includes an anchor part 7 composed of an oxide single crystal or a silicon single crystal and bonded to the fixed end part 2e of the vibration layer 2 at the first main face 2a. The device further includes a weight part 6 composed of an oxide single crystal or a silicon single crystal and bonded to the free end part 2c at the first main face 2a.

Abstract translation: 薄板型振动装置10包括由氧化物单晶构成的振动层2。 振动层2包括第一主面2a和第二主面2b，并且还包括固定端部2e，自由端部2c和设置在固定端部与自由端部之间的中心振动部2d。 装置10还包括由氧化物单晶或单晶硅构成的锚固部分7，并且在第一主面2a处接合到振动层2的固定端部2e。 该装置还包括由氧化物单晶或单晶硅构成的重合部分6，并且在第一主面2a处接合到自由端部2c。

公开(公告)号：US20130156062A1

公开(公告)日：2013-06-20

申请号：US13713132

申请日：2012-12-13

Applicant: NGK INSULATORS, LTD.

Inventor： Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC: G02F1/35 ,  H01S3/094

CPC classification number: G02F1/35 ,  B82Y20/00 ,  G02F1/3556 ,  G02F1/39 ,  G02F2001/3546 ,  G02F2001/3548 ,  H01S3/0092 ,  H01S3/094 ,  H01S3/2391

Abstract: It is provided a wavelength converting device oscillating an idler light having a wavelength of 5 to 10 μm from a pump light. The wavelength of the idler light is longer than that of the pump light. The wavelength converting device includes a wavelength converting layer 5 of a semiconductor non-linear optical crystal and having a thickness of 50 μm or smaller. The wavelength converting layer 5 includes a crystal orientation inversion structure wherein crystal orientation of the optical crystal is inverted at a predetermined period and at least one flat main face 5b. The device further includes a Peltier device 2 controlling a temperature of the wavelength converting layer 5; and a clad portion 4 joined with the flat main face 5b of the wavelength converting layer 5 and provided between the wavelength converting layer 5 and the Peltier device 2. The pump light, idler light and signal light satisfies a particular phase matching condition.

Abstract translation: 提供了一种从泵浦光中振荡波长为5至10微米的惰轮的波长转换装置。 惰轮的波长比泵浦光的波长长。 波长转换装置包括半导体非线性光学晶体的波长转换层5，厚度为50μm或更小。 波长转换层5包括晶体取向反转结构，其中光学晶体的晶体取向在预定周期反转，并且至少一个平坦主面5b。 该装置还包括控制波长转换层5的温度的珀耳帖装置2; 以及与波长转换层5的平面主面5b连接并设置在波长转换层5和珀耳帖装置2之间的包层部4.泵浦光，空转光和信号光满足特定的相位匹配条件。