Abstract

An instrument is described which allows the determination of fluorescence and phosphorescence spectra, fluorescence and phosphorescence excitation spectra, and the decay of triplet states involved in phosphorescence. A variable chopping speed (0–6000 rpm) allows determination of lifetimes down to 0.1 msec. Fluctuations in the 450-W light source are compensated by a quantum counter and a ratio divider, which plots the ratio of signals from the light emitter and the quantum counter. The instrument has been calibrated so that wavelength variations in excitation intensity, bandwidth, monochromator transmission, and phototube sensitivity are corrected, and only the number of quanta emitted by a sample at each wavelength is reported. Examples are given of the spectra of Rhodamine B and eosin.

© 1964 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
An Automatic Recording Polarization Spectrofluorimeter

S. Ainsworth and E. Winter
Appl. Opt. 3(3) 371-383 (1964)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription