In situ dynamic four-dimensional strong-field ionization tomography
We present an in situ dynamic four-dimensional (4D=3D space + 1D time) laser induced strong field ionization tomography technique, particularly suited for probing far-from-equilibrium systems, such as supersonic and hypersonic pulsed gas jets. By employing a femtosecond laser, temporal resolution is...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2025-02-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.L012027 |
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| Summary: | We present an in situ dynamic four-dimensional (4D=3D space + 1D time) laser induced strong field ionization tomography technique, particularly suited for probing far-from-equilibrium systems, such as supersonic and hypersonic pulsed gas jets. By employing a femtosecond laser, temporal resolution is primarily limited by electronic jitter, typically to a few tens of picoseconds. Our proof-of-principle experiment revealed an intriguing phenomenon: a “squeezing” of the gas pulse as it propagates downstream, manifesting as a shortening of the normalized temporal profile of the gas pulse density along the propagation axis, while simultaneously expanding transversely. |
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| ISSN: | 2643-1564 |