Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy
Laser frequency combs, with their unique combination of precisely defined spectral lines and broad bandwidth, are a powerful tool for basic and applied spectroscopy. Here, we report offset-free, mid-infrared frequency combs and dual-comb spectroscopy through supercontinuum generation in silicon-on-s...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2018-03-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/1.5006914 |
| _version_ | 1818199515170078720 |
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| author | Nima Nader Daniel L. Maser Flavio C. Cruz Abijith Kowligy Henry Timmers Jeff Chiles Connor Fredrick Daron A. Westly Sae Woo Nam Richard P. Mirin Jeffrey M. Shainline Scott Diddams |
| author_facet | Nima Nader Daniel L. Maser Flavio C. Cruz Abijith Kowligy Henry Timmers Jeff Chiles Connor Fredrick Daron A. Westly Sae Woo Nam Richard P. Mirin Jeffrey M. Shainline Scott Diddams |
| author_sort | Nima Nader |
| collection | DOAJ |
| description | Laser frequency combs, with their unique combination of precisely defined spectral lines and broad bandwidth, are a powerful tool for basic and applied spectroscopy. Here, we report offset-free, mid-infrared frequency combs and dual-comb spectroscopy through supercontinuum generation in silicon-on-sapphire waveguides. We leverage robust fabrication and geometrical dispersion engineering of nanophotonic waveguides for multi-band, coherent frequency combs spanning 70 THz in the mid-infrared (2.5 μm–6.2 μm). Precise waveguide fabrication provides significant spectral broadening with engineered spectra targeted at specific mid-infrared bands. We characterize the relative-intensity-noise of different bands and show that the measured levels do not pose any limitation for spectroscopy applications. Additionally, we use the fabricated photonic devices to demonstrate dual-comb spectroscopy of a carbonyl sulfide gas sample at 5 μm. This work forms the technological basis for applications such as point sensors for fundamental spectroscopy, atmospheric chemistry, trace and hazardous gas detection, and biological microscopy. |
| first_indexed | 2024-12-12T02:22:59Z |
| format | Article |
| id | doaj.art-c81a8be7ea9d4e7e8253ffc9df623fc5 |
| institution | Directory Open Access Journal |
| issn | 2378-0967 |
| language | English |
| last_indexed | 2024-12-12T02:22:59Z |
| publishDate | 2018-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj.art-c81a8be7ea9d4e7e8253ffc9df623fc52022-12-22T00:41:37ZengAIP Publishing LLCAPL Photonics2378-09672018-03-0133036102036102-1010.1063/1.5006914001803APPVersatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopyNima Nader0Daniel L. Maser1Flavio C. Cruz2Abijith Kowligy3Henry Timmers4Jeff Chiles5Connor Fredrick6Daron A. Westly7Sae Woo Nam8Richard P. Mirin9Jeffrey M. Shainline10Scott Diddams11Applied Physics Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USATime and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USATime and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USATime and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USATime and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USAApplied Physics Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USATime and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USACenter for Nanoscale Science and Technology, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USAApplied Physics Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USAApplied Physics Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USAApplied Physics Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USATime and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USALaser frequency combs, with their unique combination of precisely defined spectral lines and broad bandwidth, are a powerful tool for basic and applied spectroscopy. Here, we report offset-free, mid-infrared frequency combs and dual-comb spectroscopy through supercontinuum generation in silicon-on-sapphire waveguides. We leverage robust fabrication and geometrical dispersion engineering of nanophotonic waveguides for multi-band, coherent frequency combs spanning 70 THz in the mid-infrared (2.5 μm–6.2 μm). Precise waveguide fabrication provides significant spectral broadening with engineered spectra targeted at specific mid-infrared bands. We characterize the relative-intensity-noise of different bands and show that the measured levels do not pose any limitation for spectroscopy applications. Additionally, we use the fabricated photonic devices to demonstrate dual-comb spectroscopy of a carbonyl sulfide gas sample at 5 μm. This work forms the technological basis for applications such as point sensors for fundamental spectroscopy, atmospheric chemistry, trace and hazardous gas detection, and biological microscopy.http://dx.doi.org/10.1063/1.5006914 |
| spellingShingle | Nima Nader Daniel L. Maser Flavio C. Cruz Abijith Kowligy Henry Timmers Jeff Chiles Connor Fredrick Daron A. Westly Sae Woo Nam Richard P. Mirin Jeffrey M. Shainline Scott Diddams Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy APL Photonics |
| title | Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy |
| title_full | Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy |
| title_fullStr | Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy |
| title_full_unstemmed | Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy |
| title_short | Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy |
| title_sort | versatile silicon waveguide supercontinuum for coherent mid infrared spectroscopy |
| url | http://dx.doi.org/10.1063/1.5006914 |
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