High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules
We demonstrate cryogenic buffer-gas cooling of gas-phase methyltrioxorhenium (MTO). This molecule is closely related to chiral organometallic molecules where the parity-violating energy differences between enantiomers is measurable. The molecules are produced with a rotational temperature of approxi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2017-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/aa6de4 |
| _version_ | 1797750838389637120 |
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| author | S K Tokunaga R J Hendricks M R Tarbutt B Darquié |
| author_facet | S K Tokunaga R J Hendricks M R Tarbutt B Darquié |
| author_sort | S K Tokunaga |
| collection | DOAJ |
| description | We demonstrate cryogenic buffer-gas cooling of gas-phase methyltrioxorhenium (MTO). This molecule is closely related to chiral organometallic molecules where the parity-violating energy differences between enantiomers is measurable. The molecules are produced with a rotational temperature of approximately 6 K by laser ablation of an MTO pellet inside a cryogenic helium buffer gas cell. Facilitated by the low temperature, we demonstrate absorption spectroscopy of the 10.2 μ m antisymmetric Re=O stretching mode of MTO with a resolution of 8 MHz and a frequency accuracy of 30 MHz. We partially resolve the hyperfine structure and measure the nuclear quadrupole coupling of the excited vibrational state. Our ability to produce dense samples of complex molecules of this type at low temperatures represents a key step towards a precision measurement of parity violation in a chiral species. |
| first_indexed | 2024-03-12T16:38:40Z |
| format | Article |
| id | doaj.art-95c61bb2681147bdaf9f5d4dfd7d885c |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:38:40Z |
| publishDate | 2017-01-01 |
| publisher | IOP Publishing |
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| series | New Journal of Physics |
| spelling | doaj.art-95c61bb2681147bdaf9f5d4dfd7d885c2023-08-08T14:37:40ZengIOP PublishingNew Journal of Physics1367-26302017-01-0119505300610.1088/1367-2630/aa6de4High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium moleculesS K Tokunaga0R J Hendricks1M R Tarbutt2https://orcid.org/0000-0003-2713-9531B Darquié3Université Paris 13 , Sorbonne Paris Cité, Laboratoire de Physique des Lasers, F-93430 Villetaneuse, France; CNRS, UMR 7538, LPL, F-93430 Villetaneuse, FranceCentre for Cold Matter, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, United KingdomCentre for Cold Matter, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, United KingdomUniversité Paris 13 , Sorbonne Paris Cité, Laboratoire de Physique des Lasers, F-93430 Villetaneuse, France; CNRS, UMR 7538, LPL, F-93430 Villetaneuse, FranceWe demonstrate cryogenic buffer-gas cooling of gas-phase methyltrioxorhenium (MTO). This molecule is closely related to chiral organometallic molecules where the parity-violating energy differences between enantiomers is measurable. The molecules are produced with a rotational temperature of approximately 6 K by laser ablation of an MTO pellet inside a cryogenic helium buffer gas cell. Facilitated by the low temperature, we demonstrate absorption spectroscopy of the 10.2 μ m antisymmetric Re=O stretching mode of MTO with a resolution of 8 MHz and a frequency accuracy of 30 MHz. We partially resolve the hyperfine structure and measure the nuclear quadrupole coupling of the excited vibrational state. Our ability to produce dense samples of complex molecules of this type at low temperatures represents a key step towards a precision measurement of parity violation in a chiral species.https://doi.org/10.1088/1367-2630/aa6de4cold moleculesbuffer-gas coolingparity violationquantum cascade laserhigh-resolution rovibrational spectroscopyorganometallic species |
| spellingShingle | S K Tokunaga R J Hendricks M R Tarbutt B Darquié High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules New Journal of Physics cold molecules buffer-gas cooling parity violation quantum cascade laser high-resolution rovibrational spectroscopy organometallic species |
| title | High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules |
| title_full | High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules |
| title_fullStr | High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules |
| title_full_unstemmed | High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules |
| title_short | High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules |
| title_sort | high resolution mid infrared spectroscopy of buffer gas cooled methyltrioxorhenium molecules |
| topic | cold molecules buffer-gas cooling parity violation quantum cascade laser high-resolution rovibrational spectroscopy organometallic species |
| url | https://doi.org/10.1088/1367-2630/aa6de4 |
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