用半导体激光器测量普朗克常量  

Measurement of Planck Constant by Semiconductor Laser

作　　者：罗泽 徐誉洲 肖洪洋 李欢欢 彭川黔[1,2] 龚恒翔 LUO Ze;XU Yuzhou;XIAO Hongyang;LI Huanhuan;PENG Chuanqian;GONG Hengxiang

机构地区：[1]重庆理工大学理学院,重庆400054 [2]重庆理工大学光伏新能源应用技术与设备研究所,重庆400054

出　　处：《科技创新与应用》2019年第18期24-26,共3页Technology Innovation and Application

摘　　要：文章介绍了用激光器做单色光源,用于光电效应法测量普朗克常数实验,半导体激光器具有单色性好、波长稳定、寿命长、价格便宜、驱动简单、不需预热等优点,是光电效应测量普朗克常数实验中的理想光源,实验证明利用激光光源来测量普朗克常数,实验系统简单、测量方便、测量结果满足实验误差要求。This paper introduces the experiment of using laser as monochromatic light source to measure Planck constant by photoelectric effect method. Semiconductor laser has the advantages of good monochromism, stable wavelength, long life, cheap price, simple driving, no preheating and so on. It is an ideal light source in the experiment of measuring Planck constant by photoelectric effect. It is proved that using laser light source to measure Planck constant has the advantages of simple experimental system, convenient measurement and measuring results to meet the requirements of experimental error.

关 键 词：半导体激光器 光电效应 普朗克常量 

分 类 号：O4-34[理学—物理]