Discover
/
Article

Fine‐structure components of Hα line resolved

JUL 01, 1972

Using high‐resolution saturation spectroscopy, Theodore Hänsch, I. S. Shahin and Arthur Schawlow of Stanford University have been able to resolve for the first time single fine‐structure components of the red Balmer line Hα of atomic hydrogen and to observe the Lamb shift directly in the optical absorption spectrum.

This article is only available in PDF format

Related content
/
Article
In the closest thing yet obtained to a movie of a breaking chemical bond, there’s a surprise ending.
This Content Appeared In
pt-cover_1972_07.jpeg

Volume 25, Number 7

Get PT in your inbox

pt_newsletter_card_blue.png
PT The Week in Physics

A collection of PT's content from the previous week delivered every Monday.

pt_newsletter_card_darkblue.png
PT New Issue Alert

Be notified about the new issue with links to highlights and the full TOC.

pt_newsletter_card_pink.png
PT Webinars & White Papers

The latest webinars, white papers and other informational resources.

By signing up you agree to allow AIP to send you email newsletters. You further agree to our privacy policy and terms of service.