Two-beam femtosecond rotational CARS for one-dimensional thermometry in a turbulent, sooting jet flame

Daniel R. Richardson; Sukesh Roy; James R. Gord; Sean P. Kearney

doi:10.1117/12.2248914

17 February 2017 Two-beam femtosecond rotational CARS for one-dimensional thermometry in a turbulent, sooting jet flame

Daniel R. Richardson, Sukesh Roy, James R. Gord, Sean P. Kearney

Proceedings Volume 10094, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVII; 100941E (2017) https://doi.org/10.1117/12.2248914
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

Single-laser-shot femtosecond rotational coherent anti-Stokes Raman scattering (fs-RCARS) temperature measurements are performed across a 6-mm line in a turbulent, sooting ethylene jet flame to characterize temperature gradients. A 60- fs pulse is used to excite many rotational Raman transitions in N₂, and a 160-ps pulse is used to probe the Raman coherence. The spatial resolution of the measurements is 500 μm in the direction of beam propagation and 50 μm in the transverse directions. Measurements have been performed at multiple locations in the jet flame, and the measured temperature are similar to previously recorded point measurements. Future work will include performing simultaneous laser-induced incandescence (LII) measurements to measure soot volume fraction to perform joint statistical analysis of the sooting turbulent flame.

Citation Download Citation

Daniel R. Richardson, Sukesh Roy, James R. Gord, and Sean P. Kearney "Two-beam femtosecond rotational CARS for one-dimensional thermometry in a turbulent, sooting jet flame", Proc. SPIE 10094, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVII, 100941E (17 February 2017); https://doi.org/10.1117/12.2248914

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Thermometry

Combustion

Picosecond phenomena

Raman spectroscopy

Statistical analysis

Laser beam propagation

Ultrafast laser spectroscopy

Show All Keywords

Keywords/Phrases

Search In:

Publication Years