Sub-Doppler mid-infrared spectroscopy of molecular ions

Kyle N. Crabtree; James N. Hodges; Brian M. Siller; Adam J. Perry; Joseph E. Kelly; Paul A. Jenkins; Benjamin J. McCall

doi:10.1016/j.cplett.2012.09.015

Sub-Doppler mid-infrared spectroscopy of molecular ions

Kyle N. Crabtree, James N. Hodges, Brian M. Siller, Adam J. Perry, Joseph E. Kelly, Paul A. Jenkins, Benjamin J. McCall

Chemistry

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

Abstract

The technique of velocity modulation spectroscopy has recently been combined with cavity enhancement and frequency modulation methods into a technique called noise-immune cavity-enhanced optical heterodyne velocity modulation spectroscopy (NICE-OHVMS). We have implemented NICE-OHVMS with a cw-optical parametric oscillator (OPO) tunable from 3.2 to 3.9 μm, and used it to record spectra of the R(1,0) and R(1,1) ^u transitions of the ν ₂ fundamental band of H ₃ ⁺. The high optical power and cavity enhancement enable saturation of rovibrational transitions, which allows for line center frequencies to be measured with a precision of 70 kHz.

Original language	English (US)
Pages (from-to)	1-6
Number of pages	6
Journal	Chemical Physics Letters
Volume	551
DOIs	https://doi.org/10.1016/j.cplett.2012.09.015
State	Published - Nov 1 2012

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2012.09.015

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@article{07d1509e9d2c40bfbe356d1a7b287de3,

title = "Sub-Doppler mid-infrared spectroscopy of molecular ions",

abstract = "The technique of velocity modulation spectroscopy has recently been combined with cavity enhancement and frequency modulation methods into a technique called noise-immune cavity-enhanced optical heterodyne velocity modulation spectroscopy (NICE-OHVMS). We have implemented NICE-OHVMS with a cw-optical parametric oscillator (OPO) tunable from 3.2 to 3.9 μm, and used it to record spectra of the R(1,0) and R(1,1) u transitions of the ν 2 fundamental band of H 3 +. The high optical power and cavity enhancement enable saturation of rovibrational transitions, which allows for line center frequencies to be measured with a precision of 70 kHz.",

author = "Crabtree, {Kyle N.} and Hodges, {James N.} and Siller, {Brian M.} and Perry, {Adam J.} and Kelly, {Joseph E.} and Jenkins, {Paul A.} and McCall, {Benjamin J.}",

note = "Funding Information: The authors thank Takeshi Oka for providing us with the liquid nitrogen cooled plasma cell and its associated pumps and plasma electronics. KNC and BMS acknowledge support from a NASA Earth and Space Science Fellowship. JNH acknowledges support from a Springborn Fellowship and a National Science Foundation Graduate Research Fellowship (DGE 11-44245 FLLW). This work has been supported by the National Science Foundation (PHY 08-55633), the NASA Laboratory Astrophysics program (NNX08AN82G), and a David and Lucile Packard Fellowship. ",

year = "2012",

month = nov,

day = "1",

doi = "10.1016/j.cplett.2012.09.015",

language = "English (US)",

volume = "551",

pages = "1--6",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Sub-Doppler mid-infrared spectroscopy of molecular ions

AU - Crabtree, Kyle N.

AU - Hodges, James N.

AU - Siller, Brian M.

AU - Perry, Adam J.

AU - Kelly, Joseph E.

AU - Jenkins, Paul A.

AU - McCall, Benjamin J.

N1 - Funding Information: The authors thank Takeshi Oka for providing us with the liquid nitrogen cooled plasma cell and its associated pumps and plasma electronics. KNC and BMS acknowledge support from a NASA Earth and Space Science Fellowship. JNH acknowledges support from a Springborn Fellowship and a National Science Foundation Graduate Research Fellowship (DGE 11-44245 FLLW). This work has been supported by the National Science Foundation (PHY 08-55633), the NASA Laboratory Astrophysics program (NNX08AN82G), and a David and Lucile Packard Fellowship.

PY - 2012/11/1

Y1 - 2012/11/1

N2 - The technique of velocity modulation spectroscopy has recently been combined with cavity enhancement and frequency modulation methods into a technique called noise-immune cavity-enhanced optical heterodyne velocity modulation spectroscopy (NICE-OHVMS). We have implemented NICE-OHVMS with a cw-optical parametric oscillator (OPO) tunable from 3.2 to 3.9 μm, and used it to record spectra of the R(1,0) and R(1,1) u transitions of the ν 2 fundamental band of H 3 +. The high optical power and cavity enhancement enable saturation of rovibrational transitions, which allows for line center frequencies to be measured with a precision of 70 kHz.

AB - The technique of velocity modulation spectroscopy has recently been combined with cavity enhancement and frequency modulation methods into a technique called noise-immune cavity-enhanced optical heterodyne velocity modulation spectroscopy (NICE-OHVMS). We have implemented NICE-OHVMS with a cw-optical parametric oscillator (OPO) tunable from 3.2 to 3.9 μm, and used it to record spectra of the R(1,0) and R(1,1) u transitions of the ν 2 fundamental band of H 3 +. The high optical power and cavity enhancement enable saturation of rovibrational transitions, which allows for line center frequencies to be measured with a precision of 70 kHz.

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VL - 551

SP - 1

EP - 6

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

Sub-Doppler mid-infrared spectroscopy of molecular ions

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