公开(公告)号：US20220271211A1

公开(公告)日：2022-08-25

申请号：US17631147

申请日：2020-07-30

Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE

Inventor： Tadaaki NAGAO ,  Duy Thang DAO

IPC: H01L37/02 ,  H01L27/16 ,  G01J5/20

Abstract: A photothermal converter using a wavelength selective perfect absorber made of a low-loss metal material or dielectric and a heat detection sensor are combined to develop a sensor that efficiently converts light of a specific wavelength into heat and further electrically detects the heat. Here, since the wavelength selective perfect absorber of the present invention has a periodic structure, it has high directivity, and can also be used as a small motion sensor or a watching sensor using detection of thermal radiation. In addition, it can also be used as a high-precision small position sensor by being combined with a laser light source matching the resonance wavelength of the sensor.

公开(公告)号：US20210243858A1

公开(公告)日：2021-08-05

申请号：US17052563

申请日：2019-05-24

Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE

Inventor： Tadaaki NAGAO ,  Tung Anh DOAN ,  Duy Thang DAO ,  Satoshi ISHII

IPC: H05B39/00 ,  H05B39/04 ,  H05B3/00

Abstract: Provided is a radiation light source that enables adjustment of infrared radiation to a significantly narrow band. A plasmonic reflector layer consisting of a plasmonic material, a resonator layer consisting of an insulator, and a partially reflecting layer are alternately laminated in this order to form a multi-layered radiation light source, wherein the partially reflecting layer are selected from any one of a free interface, an ultrathin-film metallic layer, and a distributed reflector layer having a structure in which layers having different refractive indexes are alternately laminated. When a material with high-temperature resistance such as SiC is used in the outermost layer of the distributed reflector layer, the multi-layered radiation light source can operate at high temperatures of 550° C. and higher.