Accession Number:

AD0667742

Title:

STUDY OF VARIOUS ASPECTS OF RAMAN SCATTERING USING GAS LASERS

Descriptive Note:

Semi-annual technical rept. no. 4, 1 Feb-31 Jul 1967

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s):

Report Date:

1968-04-15

Pagination or Media Count:

28.0

Abstract:

The laser induced line narrowing effect, observed and utilized previously in precise isotope shift determination in Ne, is analyzed theoretically in considerable detail. It is shown that two types of multiple quantum processes play important roles and dramatically influence the lineshape of the laser-induced signal. This line narrowing effect is particularly useful in precise measurements of atomic energy level structure it also involves novel radiative processes influencing dramatically the observed shapes. An experiment is in progress in which a new gas laser mechanism is being explored as a possible mechanism in a previously observed laser oscillation in one of the visible Ne transitions and also in a similar laser transition in Argon. Furthermore, this effect is also being explored to obtain possible laser oscillation in a number of important atomic transitions, such as the hydrogen H alpha line. The experiment on the motional narrowing of the spontaneous Raman scattering in hydrogen molecule is being pursued actively. Several new laser designs were constructed and tested.

Subject Categories:

  • Lasers and Masers
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE