Skip to main content

Modification of a Commercial Argon Ion Laser for Enhancement of Gas Phase Raman Scattering

Buy Article:

$29.00 plus tax (Refund Policy)

Abstract:

Although the availability of high-powered argon ion lasers has significantly reduced the difficulty of obtaining Raman spectra of gases, nevertheless there are still many cases where enhancement of the scattered light from weakly scattering samples is required. One particular example is in the study of vibrationally excited molecules produced thermally and in an electrical discharge. Because the concentration of excited species is not very high, standard methods of laser excitation do not provide sufficiently intense Raman spectra. In this note, the application of intracavity excitation using a commercial laser (Coherent Radiation Laboratory, model 52A) is described. The resultant signal enhancement is much superior to that obtained with other techniques which excite the sample outside the cavity (e.g., a multiple pass device). Although spectra have been obtained by intracavity excitation with a laboratory-built laser, an ordinary commercial laser can also be modified for such use at a cost of less than $1000. The modification described below outlines the minimum requirements of the apparatus and the techniques used for alignment. We feel the information in this report will help other Raman spectroscopists to take advantage of intracavity sampling.

Keywords: Intracavity optics; Lasers; Raman spectroscopy

Document Type: Short Communication

DOI: http://dx.doi.org/10.1366/000370272774351813

Affiliations: 1: Polaroid Engineering Division, 1265 Main Street, Waltham, Massachusetts 02154 2: Naval Research Laboratory, Washington, D. C. 20390

Publication date: September 1, 1972

More about this publication?
sas/sas/1972/00000026/00000005/art00009
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more