Published November 15, 1981
| Version v1
Journal article
Thermally induced laser pulsing to measure weak optical absorptions
Creators
- 1. University of California, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545
Description
Intracavity thermal lensing has been used to convert a cw dye laser to pulsed operation. The pulse width is a measure of the absorptivity of the solution in the cell. Experimental data are presented to show how this technique can be used to measure the absorptivity of a pure solvent and the concentration of a solute. The absorptivities (base e)of water, CH3OH, CH3COCH3, and CCl4 were determined to be, respectively, (1.24 +- 0.17) x 10-3, (1.01 +- 0.07) x 10-3, (1.74 +- 0.09) x 10-4, and (3.95 +- 3.40) x 10-6 cm-1. For CCl4 in 10-cm sample cell, the minimum detectable absorptivity is approx.4 x 10-6 cm-1
Additional details
Publishing Information
- Journal Title
- Appl. Opt.
- Journal Volume
- 20
- Journal Issue
- 22
- Series
- Appl. Opt.
- Journal Page Range
- 3838-3848
- ISSN
- 0003-6935
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 13695280
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ACETONE; ATTENUATION; DYE LASERS; LINE WIDTHS; METHANOL; PULSES; QUANTITY RATIO; SENSITIVITY; SOLVENTS; TETRACHLOROMETHANE; WATER
- Descriptors DEC
- ALCOHOLS; AMPLIFIERS; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; KETONES; LASERS; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; OXYGEN COMPOUNDS