Hybrid femtosecond/picosecond pure rotational anti-Stokes Raman spectroscopy of nitrogen at high pressures (1-70 atm) and temperatures (300-1000 K)

Trevor Courtney; Nils Mecker; Brian Patterson; Mark Linne; Christopher Kliewer

doi:10.1063/1.5071438

Hybrid femtosecond/picosecond pure rotational anti-Stokes Raman spectroscopy of nitrogen at high pressures (1-70 atm) and temperatures (300-1000 K)

Trevor Courtney, Nils Mecker, Brian Patterson, Mark Linne, Christopher Kliewer

School of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

We demonstrate hybrid femtosecond/picosecond (fs/ps) pure-rotational coherent anti-Stokes Raman spectroscopy (RCARS) at high temperatures and pressures. Pulse-shaper-produced 40 fs pulses and bandwidth-narrowed, frequency-upconverted 5 ps pulses interact in a high-pressure cell containing N2 at 1–70 atm and 300–1000 K. Accurate experimental temperatures evaluated from fits to model rotational spectra confirm that the sensitivity and precision advantages of hybrid fs/ps RCARS can be exploited in characterizing combustion environments, even in the pressure regime where line-mixing and collisional energy transfer cannot be neglected.

Original language	English
Journal	Applied Physics Letters
Volume	114
Early online date	15 Mar 2019
DOIs	https://doi.org/10.1063/1.5071438
Publication status	E-pub ahead of print - 15 Mar 2019

Keywords / Materials (for Non-textual outputs)

Nonlinear optics
CARS

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10.1063/1.5071438

pdf_archiveAPPLABvol_114iss_10101107_1_amAccepted author manuscript, 1.74 MB

https://aip.scitation.org/doi/10.1063/1.5071438

Cite this

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title = "Hybrid femtosecond/picosecond pure rotational anti-Stokes Raman spectroscopy of nitrogen at high pressures (1-70 atm) and temperatures (300-1000 K)",

abstract = "We demonstrate hybrid femtosecond/picosecond (fs/ps) pure-rotational coherent anti-Stokes Raman spectroscopy (RCARS) at high temperatures and pressures. Pulse-shaper-produced 40 fs pulses and bandwidth-narrowed, frequency-upconverted 5 ps pulses interact in a high-pressure cell containing N2 at 1–70 atm and 300–1000 K. Accurate experimental temperatures evaluated from fits to model rotational spectra confirm that the sensitivity and precision advantages of hybrid fs/ps RCARS can be exploited in characterizing combustion environments, even in the pressure regime where line-mixing and collisional energy transfer cannot be neglected.",

keywords = "Nonlinear optics, CARS",

author = "Trevor Courtney and Nils Mecker and Brian Patterson and Mark Linne and Christopher Kliewer",

year = "2019",

month = mar,

day = "15",

doi = "10.1063/1.5071438",

language = "English",

volume = "114",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Hybrid femtosecond/picosecond pure rotational anti-Stokes Raman spectroscopy of nitrogen at high pressures (1-70 atm) and temperatures (300-1000 K)

AU - Courtney, Trevor

AU - Mecker, Nils

AU - Patterson, Brian

AU - Linne, Mark

AU - Kliewer, Christopher

PY - 2019/3/15

Y1 - 2019/3/15

N2 - We demonstrate hybrid femtosecond/picosecond (fs/ps) pure-rotational coherent anti-Stokes Raman spectroscopy (RCARS) at high temperatures and pressures. Pulse-shaper-produced 40 fs pulses and bandwidth-narrowed, frequency-upconverted 5 ps pulses interact in a high-pressure cell containing N2 at 1–70 atm and 300–1000 K. Accurate experimental temperatures evaluated from fits to model rotational spectra confirm that the sensitivity and precision advantages of hybrid fs/ps RCARS can be exploited in characterizing combustion environments, even in the pressure regime where line-mixing and collisional energy transfer cannot be neglected.

AB - We demonstrate hybrid femtosecond/picosecond (fs/ps) pure-rotational coherent anti-Stokes Raman spectroscopy (RCARS) at high temperatures and pressures. Pulse-shaper-produced 40 fs pulses and bandwidth-narrowed, frequency-upconverted 5 ps pulses interact in a high-pressure cell containing N2 at 1–70 atm and 300–1000 K. Accurate experimental temperatures evaluated from fits to model rotational spectra confirm that the sensitivity and precision advantages of hybrid fs/ps RCARS can be exploited in characterizing combustion environments, even in the pressure regime where line-mixing and collisional energy transfer cannot be neglected.

KW - Nonlinear optics

KW - CARS

U2 - 10.1063/1.5071438

DO - 10.1063/1.5071438

M3 - Article

SN - 0003-6951

VL - 114

JO - Applied Physics Letters

JF - Applied Physics Letters

ER -

Hybrid femtosecond/picosecond pure rotational anti-Stokes Raman spectroscopy of nitrogen at high pressures (1-70 atm) and temperatures (300-1000 K)

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Keywords / Materials (for Non-textual outputs)

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