Addressing asymmetric Fano profiles on molecular lines in dual-comb spectroscopy

Philippe Guay; Mathieu Walsh; Jerome Genest

doi:10.1364/OL.469102

Addressing asymmetric Fano profiles on molecular lines in dual-comb spectroscopy

Philippe Guay, Mathieu Walsh, Jerome Genest

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

6 Scopus citations

Abstract

Fano resonance in molecular spectroscopy is reported with a dual-comb instrument. The effect is observed as asymmetric absorption lines of H12CN. Pulse chirping conditions in the gas cell are varied to show that Fano resonance is dependent on the pulse peak power. A model adding the Fano profile to Voigt lines is used to estimate Fano phase as a function of pulse peak power. A pulse peak power condition is derived from this analysis to avoid line shape distortion in pulsed laser experiments.

Original language	English (US)
Pages (from-to)	4275-4278
Number of pages	4
Journal	OPTICS LETTERS
Volume	47
Issue number	16
DOIs	https://doi.org/10.1364/OL.469102
State	Published - Aug 15 2022
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.469102

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@article{0e11d44d1d824bf88c7e41230337d506,

title = "Addressing asymmetric Fano profiles on molecular lines in dual-comb spectroscopy",

abstract = "Fano resonance in molecular spectroscopy is reported with a dual-comb instrument. The effect is observed as asymmetric absorption lines of H12CN. Pulse chirping conditions in the gas cell are varied to show that Fano resonance is dependent on the pulse peak power. A model adding the Fano profile to Voigt lines is used to estimate Fano phase as a function of pulse peak power. A pulse peak power condition is derived from this analysis to avoid line shape distortion in pulsed laser experiments.",

author = "Philippe Guay and Mathieu Walsh and Jerome Genest",

note = "KAUST Repository Item: Exported on 2022-09-14 Acknowledged KAUST grant number(s): OSR-CRG2019-4046 Acknowledgements: Natural Sciences and Engineering Research Council of Canada; Global Collaborative Research, King Abdullah University of Science and Technology (OSR-CRG2019-4046). This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2022",

month = aug,

day = "15",

doi = "10.1364/OL.469102",

language = "English (US)",

volume = "47",

pages = "4275--4278",

journal = "OPTICS LETTERS",

issn = "1539-4794",

publisher = "Optica Publishing Group",

number = "16",

}

TY - JOUR

T1 - Addressing asymmetric Fano profiles on molecular lines in dual-comb spectroscopy

AU - Guay, Philippe

AU - Walsh, Mathieu

AU - Genest, Jerome

N1 - KAUST Repository Item: Exported on 2022-09-14 Acknowledged KAUST grant number(s): OSR-CRG2019-4046 Acknowledgements: Natural Sciences and Engineering Research Council of Canada; Global Collaborative Research, King Abdullah University of Science and Technology (OSR-CRG2019-4046). This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2022/8/15

Y1 - 2022/8/15

N2 - Fano resonance in molecular spectroscopy is reported with a dual-comb instrument. The effect is observed as asymmetric absorption lines of H12CN. Pulse chirping conditions in the gas cell are varied to show that Fano resonance is dependent on the pulse peak power. A model adding the Fano profile to Voigt lines is used to estimate Fano phase as a function of pulse peak power. A pulse peak power condition is derived from this analysis to avoid line shape distortion in pulsed laser experiments.

AB - Fano resonance in molecular spectroscopy is reported with a dual-comb instrument. The effect is observed as asymmetric absorption lines of H12CN. Pulse chirping conditions in the gas cell are varied to show that Fano resonance is dependent on the pulse peak power. A model adding the Fano profile to Voigt lines is used to estimate Fano phase as a function of pulse peak power. A pulse peak power condition is derived from this analysis to avoid line shape distortion in pulsed laser experiments.

UR - http://hdl.handle.net/10754/680940

UR - https://opg.optica.org/abstract.cfm?URI=ol-47-16-4275

U2 - 10.1364/OL.469102

DO - 10.1364/OL.469102

M3 - Article

SN - 1539-4794

VL - 47

SP - 4275

EP - 4278

JO - OPTICS LETTERS

JF - OPTICS LETTERS

IS - 16

ER -

Addressing asymmetric Fano profiles on molecular lines in dual-comb spectroscopy

Abstract

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