Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Impact of moderate pump–Stokes chirp on femtosecond coherent anti-Stokes Raman scattering spectra

Journal Article · · Journal of Raman Spectroscopy
DOI:https://doi.org/10.1002/jrs.5754· OSTI ID:1594854
 [1];  [2];  [2]
  1. Department of Mechanical EngineeringPurdue University West Lafayette Indiana USA; Purdue University
  2. Department of Mechanical EngineeringPurdue University West Lafayette Indiana USA

The effects of inducing moderate chirp in the pump and Stokes beams in chirped-probe-pulse femtosecond coherent anti-Stokes Raman scattering (CARS) spectroscopy are discussed. This is an important issue for measurements in high-pressure systems where the CARS beams must be transmitted through glass of significant thickness to reach the probe volume of interest. The effects were investigated both experimentally, by inserting disks of SF-11 glass into the pump and Stokes beam paths, and theoretically, by incorporating pulse chirp into our time-dependent density matrix (TDDM) simulations. Experimentally, we found that inducing moderate pump and Stokes chirp produced significant spectral narrowing of the nonresonant four-wave mixing contribution to the CARS signal, and this allowed us to control the resonant excitation bandwidth to eliminate interferences from neighboring species. The temperature measurement accuracy and precision were essentially unchanged with respect to the unchirped pump and Stokes case. The effect of moderate pump and Stokes chirp on the narrowing of the Raman excitation efficiency envelope was investigated by solving the full set of TDDM through direct numerical integration. The numerical efficiency of the solutions was enhanced dramatically by developing a parallel version of the TDDM code. The calculated Raman excitation efficiency profile was incorporated in our phenomenological spectral fitting codes.

Research Organization:
Purdue University
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
DOE Contract Number:
FG02-03ER15391
OSTI ID:
1594854
Journal Information:
Journal of Raman Spectroscopy, Journal Name: Journal of Raman Spectroscopy Journal Issue: 1 Vol. 51; ISSN 0377-0486
Publisher:
Wiley
Country of Publication:
United States
Language:
English

References (35)

Recent advances in coherent anti-Stokes Raman scattering spectroscopy: Fundamental developments and applications in reacting flows journal April 2010
Vibrational femtosecond/picosecond coherent anti-Stokes Raman scattering with enhanced temperature sensitivity for flame thermometry from 300 to 2400 K: Femtosecond/picosecond coherent anti-Stokes Raman scattering journal June 2015
Pressure-induced narrowing of the cars spectrum of N2 journal October 1980
Interference-free gas-phase thermometry at elevated pressure using hybrid femtosecond/picosecond rotational coherent anti-Stokes Raman scattering journal January 2012
Temperature measurements in metalized propellant combustion using hybrid fs/ps coherent anti-Stokes Raman scattering journal January 2016
Technique developments and performance analysis of chirped-probe-pulse femtosecond coherent anti-Stokes Raman scattering combustion thermometry journal January 2017
Chirped coherent anti-Stokes Raman scattering as a high-spectral- and spatial-resolution microscopy journal January 2007
High spectral resolution multiplex CARS spectroscopy using chirped pulses journal April 2004
Femtosecond Phase-and-Polarization Control for Background-Free Coherent Anti-Stokes Raman Spectroscopy journal May 2003
Simple model of coherent anti-Stokes Raman scattering signals generated by means of linearly chirped ultrashort Gaussian laser pulses journal March 2018
Multiparameter spatio-thermochemical probing of flame–wall interactions advanced with coherent Raman imaging journal January 2017
Time-resolved femtosecond CARS from 10 to 50 Bar: collisional sensitivity: Time-resolved femtosecond CARS journal March 2013
Comparison of chirped-probe-pulse and hybrid femtosecond/picosecond coherent anti-Stokes Raman scattering for combustion thermometry journal January 2017
Hybrid fs/ps rotational CARS temperature and oxygen measurements in the product gases of canonical flat flames journal May 2015
Hybrid femtosecond/picosecond pure rotational anti-Stokes Raman spectroscopy of nitrogen at high pressures (1–70 atm) and temperatures (300–1000 K) journal March 2019
Interference-free hybrid fs/ps vibrational CARS thermometry in high-pressure flames journal January 2018
BOXCARS: Crossed‐beam phase‐matched CARS generation in gases journal April 1978
5 kHz thermometry in a swirl-stabilized gas turbine model combustor using chirped probe pulse femtosecond CARS. Part 2. Analysis of swirl flame dynamics journal November 2016
Ultrafast nonlinear spectroscopy with chirped optical pulses journal January 1992
Bandwidth optimization of femtosecond pure-rotational coherent anti-Stokes Raman scattering by pump/Stokes spectral focusing journal January 2014
Dual-pump vibrational/rotational femtosecond/picosecond coherent anti-Stokes Raman scattering temperature and species measurements journal January 2014
5 kHz thermometry in a swirl-stabilized gas turbine model combustor using chirped probe pulse femtosecond CARS. Part 1: Temporally resolved swirl-flame thermometry journal November 2016
Quantum control of coherent anti-Stokes Raman processes journal April 2002
Nitrogen and hydrogen CARS temperature measurements in a hydrogen/air flame using a near-adiabatic flat-flame burner journal May 1997
High-spatial-resolution one-dimensional rotational coherent anti-Stokes Raman spectroscopy imaging using counterpropagating beams journal January 2012
Two-beam ultrabroadband coherent anti-Stokes Raman spectroscopy for high resolution gas-phase multiplex imaging journal January 2014
Theoretical modeling of single-laser-shot, chirped-probe-pulse femtosecond coherent anti-Stokes Raman scattering thermometry journal April 2011
Gas-phase single-shot thermometry at 1 kHz using fs-CARS spectroscopy journal January 2009
Chirped Coherent Anti-Stokes Raman Scattering for High Spectral Resolution Spectroscopy and Chemically Selective Imaging journal March 2006
Flame thermometry by femtosecond CARS journal August 2001
Interference-free coherence dynamics of gas-phase molecules using spectral focusing journal January 2012
Five kHz thermometry in turbulent spray flames using chirped-probe pulse femtosecond CARS, part I: Processing and interference analysis journal February 2019
Coherent anti-Stokes Raman microspectroscopy using spectral focusing with glass dispersion journal November 2008
Single-fiber-laser-based wavelength tunable excitation for coherent Raman spectroscopy journal January 2013
Single-pulse coherently controlled nonlinear Raman spectroscopy and microscopy journal August 2002

Similar Records

Impact of moderate pump–Stokes chirp on femtosecond coherent anti‐Stokes Raman scattering spectra
Journal Article · Wed Oct 16 00:00:00 EDT 2019 · Journal of Raman Spectroscopy · OSTI ID:1570772

Coherent anti-Stokes Raman microspectroscopy using spectral focusing with glass dispersion
Journal Article · Sun Nov 16 23:00:00 EST 2008 · Applied Physics Letters · OSTI ID:21175756

Bandwidth optimization of femtosecond pure-rotational coherent anti-Stokes Raman scattering by pump/Stokes spectral focusing.
Journal Article · Tue Jul 01 00:00:00 EDT 2014 · Applied Optics · OSTI ID:1182983