Abstract

Pulsed laser excitation of OH(AX), NH2 (AX), and CO2 (10.6-μm vibrational hot band) has been detected optoacoustically in flames. Detection sensitivities approaching 1 part in 109, 105, and 105, respectively, were obtained for these species. The form and characteristics of the pressure wave were examined, using OH in flames excited by dye laser and SF6 in a cold flow excited by a CO2 laser, to optimize the laser beam and microphone geometry and understand the influence of the microphone frequency response. Attempts to detect H2O using the vibrational overtone bands near 590 nm were successful in the vapor near 310 K but failed in the hot flame gases.

© 1983 Optical Society of America

Full Article  |  PDF Article

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 (8)

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

Equations (2)

You do not have subscription access to this journal. Equations 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