Journal ArticleDOI
Mid-infrared dual-comb spectroscopy with an optical parametric oscillator.
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TLDR
This work presents the first implementation of mid-infrared dual-comb spectroscopy with an optical parametric oscillator, and opens up unique opportunities to perform broadband spectroscopic measurements with high resolution, high requisition rate, and high detection sensitivity.Abstract:
We present the first implementation of mid-infrared dual-comb spectroscopy with an optical parametric oscillator. Methane absorption spectroscopy was demonstrated with a resolution of 0.2 cm(-1) (5 GHz) at an acquisition time of ~10.4 ms over a spectral coverage at 2900-3050 cm(-1). The average power from each individual mid-infrared comb line was ~1 μW, representing a power level much greater than typical difference-frequency-generation sources. Mid-infrared dual-comb spectroscopy opens up unique opportunities to perform broadband spectroscopic measurements with high resolution, high requisition rate, and high detection sensitivity.read more
Citations
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Journal ArticleDOI
Dual-comb spectroscopy
TL;DR: This review describes dual-comb spectroscopy and summarizes the current state of the art and suggests that frequency comb technology will continue to mature and could surpass conventional broadbandSpectroscopy for a wide range of laboratory and field applications.
Journal ArticleDOI
Adaptive real-time dual-comb spectroscopy
TL;DR: This work experimentally demonstrates a concept of real-time dual-comb spectroscopy, which compensates for laser instabilities by electronic signal processing, and offers a powerful transdisciplinary instrument for analytical sciences.
Journal ArticleDOI
Frequency-comb-based remote sensing of greenhouse gases over kilometer air paths
Gregory B. Rieker,Fabrizio R. Giorgetta,William C. Swann,J. Kofler,Alexander M. Zolot,Laura C. Sinclair,Esther Baumann,Christopher L. Cromer,Gabrielle Pétron,Colm Sweeney,Pieter P. Tans,Ian Coddington,Nathan R. Newbury +12 more
TL;DR: In this paper, a coherent dual frequency-comb spectroscopy technique was used to estimate dry-air mole fractions of greenhouse gases, including CO2, CH4, H2O, HDO, and CO213.
Journal ArticleDOI
High-coherence mid-infrared dual-comb spectroscopy spanning 2.6 to 5.2 μm
Gabriel Ycas,Fabrizio R. Giorgetta,Esther Baumann,Ian Coddington,Daniel I. Herman,Scott A. Diddams,Nathan R. Newbury +6 more
TL;DR: In this article, the authors demonstrate a mid-infrared dual-comb spectrometer covering 2.6 to 5.2 µm with comb-tooth resolution, sub-MHz frequency precision and accuracy, and a spectral signal-to-noise ratio as high as 6,500.
Journal ArticleDOI
Massively parallel sensing of trace molecules and their isotopologues with broadband subharmonic mid-infrared frequency combs
TL;DR: In this article, a dual-comb Fourier transform spectrometer was proposed for the detection of trace gases, solids and liquids based on tell-tale vibrational bands specific to this spectral region.
References
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Journal ArticleDOI
Mid-infrared frequency combs
TL;DR: In this paper, the authors discuss the emerging field of mid-infrared frequency comb generation, including technologies based on novel laser gain media, nonlinear frequency conversion and micro-resonators.
Journal ArticleDOI
Coherent multiheterodyne spectroscopy using stabilized optical frequency combs.
TL;DR: The broadband, coherent nature of narrow-linewidth fiber frequency combs is exploited to measure the full complex spectrum of a molecular gas through multiheterodyne spectroscopy, and the measured phase spectrum agrees with the Kramers-Kronig transformation of the absorption spectrum.
Journal ArticleDOI
Time-domain mid-infrared frequency-comb spectrometer.
TL;DR: A novel type of Fourier-transform infrared spectrometer based on two Ti:sapphire lasers emitting femtosecond pulse trains with slightly different repetition frequencies that superimposed upon a detector to produce purely time-domain interferograms that encode the infrared spectrum is demonstrated.
Journal ArticleDOI
Frequency-comb infrared spectrometer for rapid, remote chemical sensing
TL;DR: This work demonstrates real-time recording of chemical vapor fluc-tuations from 22m away with a fast Fourier-transform infrared (FTIR) spectrometer that uses a laser-like infrared probing beam generated from two 10-fs Ti:sapphire lasers.
Journal ArticleDOI
Spectroscopy of the methane ν 3 band with an accurate midinfrared coherent dual-comb spectrometer
Esther Baumann,Fabrizio R. Giorgetta,William C. Swann,Alex M. Zolot,Ian Coddington,Nathan R. Newbury +5 more
TL;DR: In this article, the amplitude and phase spectra of the $P, $Q, and partial $R$ branches of the methane band were measured at 25 to 100 MHz point spacing with resolution under 10 kHz and a signal-to-noise ratio of up to 3500.