Abstract

Megahertz-rate hydroxyl radical planar laser-induced fluorescence (OH-PLIF) was demonstrated in a hydrogen/air rotating detonation combustor for the first time, to the best of our knowledge. A custom injection-seeded optical parametric oscillator (OPO) pumped by the 355 nm output of a high-energy burst-mode laser produced narrowband pulses near 284 nm for OH excitation. The system generated sequences of more than 150 ultraviolet pulses with 400 µJ/pulse at 1 MHz and 150 µJ/pulse at 2 MHz. The order of magnitude improvement in the repetition rate over prior OH-PLIF measurements and in the number of pulses over previous megahertz burst-mode OPOs enables spatiotemporal analysis of complex detonation combustion dynamics.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
100 kHz krypton planar laser-induced fluorescence imaging

Stephen W. Grib, Paul S. Hsu, Naibo Jiang, Josef J. Felver, S. Alexander Schumaker, Campbell D. Carter, and Sukesh Roy
Opt. Lett. 45(14) 3832-3835 (2020)

10 kHz two-color OH PLIF thermometry using a single burst-mode OPO

Paul S. Hsu, Naibo Jiang, Josef J. Felver, Daniel K. Lauriola, Paul M. Danehy, and Sukesh Roy
Opt. Lett. 46(10) 2308-2311 (2021)

Hydroxyl radical planar laser-induced fluorescence imaging in flames using frequency-tripled femtosecond laser pulses

Ayush Jain, Pradeep Parajuli, Yejun Wang, and Waruna D. Kulatilaka
Opt. Lett. 45(17) 4690-4693 (2020)

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 Optica member, or as an authorized user of your institution.

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

Supplementary Material (2)

NameDescription
Visualization 1       1MHz OH PLIF imaging in RDC.
Visualization 2       2MHz OH PLIF imaging in RDC.

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 Optica member, or as an authorized user of your institution.

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

Figures (4)

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

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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