物理与工程2025，Vol.35Issue(6)：30-34,5.
关于《物理光学》教材中电磁波波函数时间项正负号概念的澄清及物理意义的讨论
CLARIFICATION AND DISCUSSION OF THE TIME TERM OF PLUS OR MINUS SIGN FOR ELECTROMAGNETIC WAVE FUNCTION IN THE TEXTBOOK OF PHYSICAL OPTICS
摘要
Abstract
In textbooks on electromagnetic waves or optics,the time term of the electromag-netic field wave function is usually represented with a negative sign.However,in the"College Physics"textbook,the wavefunction of the wave for the time term is typically represented with a positive sign when deriving the wave equation from the vibration equation.During my teaching,students often raise such questions,so it is necessary to discuss the concept and physical significance of the positive and negative signs of the time term to better help students understand the physical significance.This paper starts from the definition of vibration,pro-vides related concepts of wave motion,and discusses in detail the physical connotation of the positive and negative signs of the time term in the wave function of electromagnetic field.In addition,it further analyzes the practical considerations of expressing the time term of the wave function as a negative sign when dealing with electromagnetic wave or optical problems,clarifying and explaining the doubts about the wave function of electromagnetic waves usually being represented with a negative sign.关键词
波函数/电磁波/时间项/正负号/相位Key words
wave function/electromagnetic wave/time term/positive or negative sign/phase引用本文复制引用
袁茂辉,黄黔豫,张轩浩,姜曼,韩凯..关于《物理光学》教材中电磁波波函数时间项正负号概念的澄清及物理意义的讨论[J].物理与工程,2025,35(6):30-34,5.基金项目
湖南省普通本科高校教学改革研究项目(项目批准号:202502000010). （项目批准号:202502000010）
