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1. 发明公开

EP3425754A1 HEAT-RADIATING LIGHT SOURCE 有权
公开(公告)号：EP3425754A1
公开(公告)日：2019-01-09
申请号：EP17759631.9
申请日：2017-02-13
申请人： Kyoto University
发明人： NODA, Susumu , INOUE, Takuya , JI, Anqi , ASANO, Takashi
IPC分类号： H01S5/04 , H01S5/34
摘要： A thermal radiation light source 10 includes a laminated body (10S) including m quantum well structure layers (111, 112) laminated where m is an integer of 2 or more, and including an n-layer (121, 122) and a p-layer (13) sandwiching each of the quantum well structure layers from both sides in the laminating direction wherein the n-layer is made of an n-type semiconductor and the p-layer is made of a p-type semiconductor; a voltage applying unit (151, 152) that is provided for each of the m quantum well structure layers and is directly or indirectly connected to the n-layer and the p-layer sandwiching each quantum well structure layer and that applies a voltage for moving to the n-layers or the p-layer a charge in a quantum well of each quantum well structure layer; a voltage switching unit (161, 162, 17) that switches ON/OFF of application of the voltage to each of the m quantum well structure layers; and a photonic crystal portion (20) disposed in the laminated body or adjacent to the laminated body, and formed so that lights of m kinds of wavelengths resonate, each of the lights of the m wavelengths being generated in each of the m quantum well structure layers corresponding to transition energy between subbands in the quantum well of the quantum well structure layer. The thermal radiation light source 10 can generate a plurality of wavelengths by switching the plurality of wavelengths one by one at a high speed.

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