A versatile and transportable endstation for controlled molecule experiments
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arXiv
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| Auteurs principaux: | , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866913620230668288 |
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| author | Jin, Wuwei Bromberger, Hubertus He, Lanhai Johny, Melby Vinklárek, Ivo S. Długołęcki, Karol Samartsev, Andrey Calegari, Francesca Trippel, Sebastian Küpper, Jochen |
| author_facet | Jin, Wuwei Bromberger, Hubertus He, Lanhai Johny, Melby Vinklárek, Ivo S. Długołęcki, Karol Samartsev, Andrey Calegari, Francesca Trippel, Sebastian Küpper, Jochen |
| contents | We report on a new versatile transportable endstation for controlled molecule (eCOMO) experiments providing a combination of molecular beam purification by electrostatic deflection and simultaneous ion and electron detection using velocity-map imaging (VMI). The $b$-type electrostatic deflector provides spatial dispersion of species based on their effective-dipole-moment-to-mass ratio. This enables selective investigation of molecular rotational quantum states, conformers, and molecular clusters. Furthermore, the double-sided VMI spectrometer equipped with two high-temporal-resolution event-driven Timepix3 cameras provides detection of all generated ions independently of their mass-over-charge ratio and electrons. To demonstrate the potential of this novel apparatus, we present experimental results from our investigation of carbonyl sulfide (OCS) after ionization. Specifically, we provide the characterization of the molecular beam, electrostatic deflector, and electron- and ion-VMI spectrometer. The eCOMO endstation delivers a platform for ultrafast dynamics studies using a wide range of light sources from table-top lasers to free-electron-laser and synchrotron-radiation facilities. This makes it suitable for research activities spanning from atomic, molecular, and cluster physics, over energy science and chemistry, to structural biology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_16491 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A versatile and transportable endstation for controlled molecule experiments Jin, Wuwei Bromberger, Hubertus He, Lanhai Johny, Melby Vinklárek, Ivo S. Długołęcki, Karol Samartsev, Andrey Calegari, Francesca Trippel, Sebastian Küpper, Jochen Chemical Physics We report on a new versatile transportable endstation for controlled molecule (eCOMO) experiments providing a combination of molecular beam purification by electrostatic deflection and simultaneous ion and electron detection using velocity-map imaging (VMI). The $b$-type electrostatic deflector provides spatial dispersion of species based on their effective-dipole-moment-to-mass ratio. This enables selective investigation of molecular rotational quantum states, conformers, and molecular clusters. Furthermore, the double-sided VMI spectrometer equipped with two high-temporal-resolution event-driven Timepix3 cameras provides detection of all generated ions independently of their mass-over-charge ratio and electrons. To demonstrate the potential of this novel apparatus, we present experimental results from our investigation of carbonyl sulfide (OCS) after ionization. Specifically, we provide the characterization of the molecular beam, electrostatic deflector, and electron- and ion-VMI spectrometer. The eCOMO endstation delivers a platform for ultrafast dynamics studies using a wide range of light sources from table-top lasers to free-electron-laser and synchrotron-radiation facilities. This makes it suitable for research activities spanning from atomic, molecular, and cluster physics, over energy science and chemistry, to structural biology. |
| title | A versatile and transportable endstation for controlled molecule experiments |
| topic | Chemical Physics |
| url | https://arxiv.org/abs/2406.16491 |