Waveguide-enhanced 2D-IR spectroscopy in the gas phase

Gregory M. Greetham; Ian P. Clark; Damien Weidmann; Michael N. R. Ashfold; Andrew J. Orr-Ewing; Michael Towrie

doi:10.1364/OL.38.003596

Waveguide-enhanced 2D-IR spectroscopy in the gas phase

Gregory M. Greetham^*, Ian P. Clark, Damien Weidmann, Michael N. R. Ashfold, Andrew J. Orr-Ewing, Michael Towrie

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

A method for obtaining high-quality 2D-IR spectra of gas-phase samples is presented. Time-resolved IR absorption spectroscopy techniques, such as 2D-IR spectroscopy, often require that beams are focused into the sample. This limits the exploitable overlapped path length through samples to a few millimeters. To circumvent this limitation, 2D-IR experiments have been performed within a hollow waveguide. This has enabled acquisition of 2D-IR spectra of low-concentration gas-phase samples, with more than an order of magnitude signal enhancement compared with the equivalent experiment in free space. The technique is demonstrated by application to the 2D-IR spectroscopy of iron pentacarbonyl. (C) 2013 Optical Society of America

Original language	English
Pages (from-to)	3596-3599
Number of pages	4
Journal	Optics Letters
Volume	38
Issue number	18
DOIs	https://doi.org/10.1364/OL.38.003596
Publication status	Published - 15 Sept 2013

Keywords

VIBRATIONAL DYNAMICS

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10.1364/OL.38.003596

Waveguide 2DIR Opt Lett 2013
This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website:http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-38-18-3596. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law
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NEW HORIZONS IN CHEMICAL AND PHOTOCHEMICAL DYNAMICS
Orr-Ewing, A. J. (Principal Investigator) & Ashfold, M. N. R. (Co-Principal Investigator)
1/10/08 → 1/04/14
Project: Research

Cite this

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title = "Waveguide-enhanced 2D-IR spectroscopy in the gas phase",

abstract = "A method for obtaining high-quality 2D-IR spectra of gas-phase samples is presented. Time-resolved IR absorption spectroscopy techniques, such as 2D-IR spectroscopy, often require that beams are focused into the sample. This limits the exploitable overlapped path length through samples to a few millimeters. To circumvent this limitation, 2D-IR experiments have been performed within a hollow waveguide. This has enabled acquisition of 2D-IR spectra of low-concentration gas-phase samples, with more than an order of magnitude signal enhancement compared with the equivalent experiment in free space. The technique is demonstrated by application to the 2D-IR spectroscopy of iron pentacarbonyl. (C) 2013 Optical Society of America",

keywords = "VIBRATIONAL DYNAMICS",

author = "Greetham, {Gregory M.} and Clark, {Ian P.} and Damien Weidmann and Ashfold, {Michael N. R.} and Orr-Ewing, {Andrew J.} and Michael Towrie",

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T1 - Waveguide-enhanced 2D-IR spectroscopy in the gas phase

AU - Greetham, Gregory M.

AU - Clark, Ian P.

AU - Weidmann, Damien

AU - Ashfold, Michael N. R.

AU - Orr-Ewing, Andrew J.

AU - Towrie, Michael

PY - 2013/9/15

Y1 - 2013/9/15

N2 - A method for obtaining high-quality 2D-IR spectra of gas-phase samples is presented. Time-resolved IR absorption spectroscopy techniques, such as 2D-IR spectroscopy, often require that beams are focused into the sample. This limits the exploitable overlapped path length through samples to a few millimeters. To circumvent this limitation, 2D-IR experiments have been performed within a hollow waveguide. This has enabled acquisition of 2D-IR spectra of low-concentration gas-phase samples, with more than an order of magnitude signal enhancement compared with the equivalent experiment in free space. The technique is demonstrated by application to the 2D-IR spectroscopy of iron pentacarbonyl. (C) 2013 Optical Society of America

AB - A method for obtaining high-quality 2D-IR spectra of gas-phase samples is presented. Time-resolved IR absorption spectroscopy techniques, such as 2D-IR spectroscopy, often require that beams are focused into the sample. This limits the exploitable overlapped path length through samples to a few millimeters. To circumvent this limitation, 2D-IR experiments have been performed within a hollow waveguide. This has enabled acquisition of 2D-IR spectra of low-concentration gas-phase samples, with more than an order of magnitude signal enhancement compared with the equivalent experiment in free space. The technique is demonstrated by application to the 2D-IR spectroscopy of iron pentacarbonyl. (C) 2013 Optical Society of America

KW - VIBRATIONAL DYNAMICS

U2 - 10.1364/OL.38.003596

DO - 10.1364/OL.38.003596

M3 - Article (Academic Journal)

C2 - 24104823

SN - 0146-9592

VL - 38

SP - 3596

EP - 3599

JO - Optics Letters

JF - Optics Letters

IS - 18

ER -

Waveguide-enhanced 2D-IR spectroscopy in the gas phase

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NEW HORIZONS IN CHEMICAL AND PHOTOCHEMICAL DYNAMICS

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