摘要:

It is shown that non-linear optical phenomena will occur when high intensity light beams interact with matter. Such light beams have become available with the invention of lasers. A review of the experiments performed with lasers to exhibit non-linear effects is given. These include the generation of harmonic, sum and difference frequencies. The stimulated Raman effect is also discussed.

ISSN:0010-7514    

DOI:10.1080/00107516408202123

出版商:Taylor & Francis Group    

年代:1964

数据来源: Taylor

摘要:

This review describes how electric units are realized and maintained, more especially at the National Physical Laboratory, and explains how some atomic constants, also determined there, play a part in the process.

ISSN:0010-7514    

DOI:10.1080/00107516408202124

出版商:Taylor & Francis Group    

年代:1964

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516408202125

出版商:Taylor & Francis Group    

年代:1964

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516408202126

出版商:Taylor & Francis Group    

年代:1964

数据来源: Taylor

摘要:

The study of the soft x-ray spectrum affords, in principle, a unique method of measuring in a single experiment the density-of-states curve of a metal. Part I gives an elementary introduction to the theory of the band structure of metals and indicates how x-ray spectra can yield information about this structure. Certain features of the emission spectra can usually be identified with theoretically predicted phenomena. The Fermi edge can be identified, often without difficulty. Good agreement is generally obtained between the calculated widths of emission bands and those measured experimentally.

ISSN:0010-7514    

DOI:10.1080/00107516408202127

出版商:Taylor & Francis Group    

年代:1964

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516408202128

出版商:Taylor & Francis Group    

年代:1964

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516408202129

出版商:Taylor & Francis Group    

年代:1964

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516408202130

出版商:Taylor & Francis Group    

年代:1964

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516408202131

出版商:Taylor & Francis Group    

年代:1964

数据来源: Taylor