Quantum wavefunction reconstruction by free-electron spectral shearing interferometry
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2022
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| _version_ | 1866911105712914432 |
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| author | Chen, Zhaopin Zhang, Bin Pan, Yiming Krueger, Michael |
| author_facet | Chen, Zhaopin Zhang, Bin Pan, Yiming Krueger, Michael |
| contents | We propose a novel spectral method for reconstructing quantum wavefunction of an electron pulse, free-electron spectral shearing interferometry (FESSI). We employ a Wien filter to generate two time-delayed replicas of the electron wavepacket and then shift one replica in energy using a light-electron modulator driven by a mid-infrared laser. As a direct demonstration, we numerically reconstruct an ultrashort electron pulse with a kinetic energy of 10 keV. FESSI is experimentally feasible and enables us to fully determine distinct orders of spectral phases and their physical implications, providing a universal approach to characterize ultrashort electron pulses. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2210_16312 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Quantum wavefunction reconstruction by free-electron spectral shearing interferometry Chen, Zhaopin Zhang, Bin Pan, Yiming Krueger, Michael Quantum Physics Accelerator Physics Atomic Physics Optics We propose a novel spectral method for reconstructing quantum wavefunction of an electron pulse, free-electron spectral shearing interferometry (FESSI). We employ a Wien filter to generate two time-delayed replicas of the electron wavepacket and then shift one replica in energy using a light-electron modulator driven by a mid-infrared laser. As a direct demonstration, we numerically reconstruct an ultrashort electron pulse with a kinetic energy of 10 keV. FESSI is experimentally feasible and enables us to fully determine distinct orders of spectral phases and their physical implications, providing a universal approach to characterize ultrashort electron pulses. |
| title | Quantum wavefunction reconstruction by free-electron spectral shearing interferometry |
| topic | Quantum Physics Accelerator Physics Atomic Physics Optics |
| url | https://arxiv.org/abs/2210.16312 |