Development of new techniques/concepts for arbitrary thermal emission control

2017 Fiscal Year Final Research Report

• Project/Area Number: 25220607
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Optical engineering, Photon science
• Research Institution: Kyoto University
• Principal Investigator: Noda Susumu 京都大学, 工学研究科, 教授 (10208358)
• Co-Investigator(Kenkyū-buntansha): 浅野 卓 京都大学, 工学研究科, 准教授 (30332729)
• Co-Investigator(Renkei-kenkyūsha): DE・ZOYSA Menaka 京都大学, 白眉センター, 特定助教 (40740395)
• Project Period (FY): 2013-05-31 – 2018-03-31
• Keywords: フォトニック結晶 / 熱輻射制御 / 量子井戸 / 半導体

Outline of Final Research Achievements

In this project, we investigated new concepts and techniques to realize arbitrary control of thermal emission, such as the conversion from a broadband to a narrowband thermal emission spectrum with minimal loss of energy at a desired wavelength and high-speed control of thermal emission. We have successfully demonstrated the following: (1) the development of mid-infrared ultra-narrowband thermal emitters whose linewidths are less than 1/100 of that of a blackbody emitter, (2) the realization of ultra-fast electrical control of thermal emission (～MHz), (3) the development of near-infrared narrowband thermal emitters operating above 1000℃, (4) the discovery of a scheme of narrowband thermal radiation transfer exceeding the blackbody limit via near-field coupling of an emitter and an intermediate transparent substrate attached to the top of an absorber.

Free Research Field

光量子電子工学