首页   按字顺浏览 期刊浏览 卷期浏览 An inexpensive apparatus for the measurement of the group velocity of light in transpar...
An inexpensive apparatus for the measurement of the group velocity of light in transparent media using a modified Helium–Neon laser

 

作者: R. Barr,   T. R. Armstrong,  

 

期刊: American Journal of Physics  （AIP Available online 1990）
卷期: Volume 58, issue 11  

页码: 1059-1064

 

ISSN:0002-9505

 

年代: 1990

 

DOI:10.1119/1.16271

 

出版商: American Association of Physics Teachers

 

关键词: GROUP VELOCITY;ELECTROMAGNETIC RADIATION;HELIUM−NEON LASERS;AMPLITUDE MODULATION;BENCH−SCALE EXPERIMENTS;ACCURACY;LIGHT VELOCITY;MEASURING METHODS

 

数据来源: AIP

 

摘要:

An apparatus is described for the measurement of the group velocity of light in transparent media. The apparatus uses a modified He–Ne laser as a stable, amplitude‐modulated light source. With the aid of a single beam oscilloscope, results for the velocity of light in air accurate to ∼0.02% have been obtained. This accuracy is sufficient to enable the relationship between the group and phase velocities in transparent dispersive media to be experimentally verified.

 

点击下载:  PDF (585KB)



返 回