Abstract

We propose an improved opposition-based self-adaptive differential evolution (IOSaDE) algorithm for multi-parameter optimization in vibrational hybrid femtosecond/picosecond coherent anti-Stokes Raman scattering (CARS) thermometry. This new algorithm self-adaptively combines the advantages of three mutation schemes and introduces two opposite population stages to avoid premature convergence. The probability of choosing each mutation scheme will be updated based on its previous performance after the first learning period. The IOSaDE method is compared with nine other traditional differential evolution (DE) methods in simulated spectra with different simulation parameters and experimental spectra at different probe time delays. In simulated spectra, both the average and standard deviation values of the final residuals from 20 consecutive trials using IOSaDE are more than two orders of magnitude smaller than those using other methods. Meanwhile, the fitting temperatures in simulated spectra using IOSaDE are all consistent with the target temperatures. In experimental spectra, the standard deviations of the fitting temperatures from 20 consecutive trials decrease more than four times by using IOSaDE, and the errors of the fitting temperatures also decrease more than 18%. The performance of the IOSaDE algorithm shows the ability to achieve accurate and stable temperature measurement in CARS thermometry and indicates the potential in applications where multiple parameters need to be considered.

© 2022 Optica Publishing Group

Comparison of chirped-probe-pulse and hybrid femtosecond/picosecond coherent anti-Stokes Raman scattering for combustion thermometry

Daniel R. Richardson, Hans U. Stauffer, Sukesh Roy, and James R. Gord
Appl. Opt. 56(11) E37-E49 (2017)

Impact of input field characteristics on vibrational femtosecond coherent anti-Stokes Raman scattering thermometry

Chao-Bo Yang, Ping He, David Escofet-Martin, Jiang-Bo Peng, Rong-Wei Fan, Xin Yu, and Derek Dunn-Rankin
Appl. Opt. 57(2) 197-207 (2018)

Technique developments and performance analysis of chirped-probe-pulse femtosecond coherent anti-Stokes Raman scattering combustion thermometry

Levi M. Thomas, Aman Satija, and Robert P. Lucht
Appl. Opt. 56(31) 8797-8810 (2017)

Hybrid time–frequency domain dual-probe coherent anti-Stokes Raman scattering for simultaneous temperature and pressure measurements in compressible flows via spectral fitting

Jonathan E. Retter, Matthew Koll, Chloe E. Dedic, Paul M. Danehy, Daniel R. Richardson, and Sean P. Kearney
Appl. Opt. 62(1) 50-62 (2023)

Gas-phase thermometry using delayed-probe-pulse picosecond coherent anti-Stokes Raman scattering spectra of H₂

Hans U. Stauffer, Waruna D. Kulatilaka, Paul S. Hsu, James R. Gord, and Sukesh Roy
Appl. Opt. 50(4) A38-A48 (2011)