Single-shot pulse retrieval of femtosecond bright squeezed vacuum
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866909799620280320 |
|---|---|
| author | Kern, Yuval Nisim, Ido Birk, Michael Rasputnyi, Andrei Behar, Doron Chen, Zhaopin Kaminer, Ido Sidorenko, Pavel Cohen, Oren Krüger, Michael |
| author_facet | Kern, Yuval Nisim, Ido Birk, Michael Rasputnyi, Andrei Behar, Doron Chen, Zhaopin Kaminer, Ido Sidorenko, Pavel Cohen, Oren Krüger, Michael |
| contents | Bright squeezed vacuum (BSV) is an intense quantum state of light with zero mean electric field and huge photon number fluctuations, sufficiently intense to drive extreme nonlinear processes and imprint nonclassical statistics. However, the temporal structure of single BSV shots has not been fully characterized. Here, we retrieve the spectral and temporal pulse characteristics of a set of single-peak BSV shots. It is obtained by realizing a femtosecond BSV source at 1040 nm with a single spatial mode and perform single-shot spectral interferometry with a fully characterized coherent-state reference pulse. Our approach reveals that the group delay is consistent between the various shots, resulting in an average pulse duration of 27.2 fs, much shorter than the pump pulse, and a variation of 5.5 fs (standard deviation). We also observe a characteristic nodal structure in the spectral interferograms, demonstrating the BSV's random phase ambiguity of $π$ rad. Our approach demonstrates that BSV is a viable source of femtosecond light pulses for attosecond sub-cycle metrology of ultrafast electron dynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_17746 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Single-shot pulse retrieval of femtosecond bright squeezed vacuum Kern, Yuval Nisim, Ido Birk, Michael Rasputnyi, Andrei Behar, Doron Chen, Zhaopin Kaminer, Ido Sidorenko, Pavel Cohen, Oren Krüger, Michael Optics Quantum Physics Bright squeezed vacuum (BSV) is an intense quantum state of light with zero mean electric field and huge photon number fluctuations, sufficiently intense to drive extreme nonlinear processes and imprint nonclassical statistics. However, the temporal structure of single BSV shots has not been fully characterized. Here, we retrieve the spectral and temporal pulse characteristics of a set of single-peak BSV shots. It is obtained by realizing a femtosecond BSV source at 1040 nm with a single spatial mode and perform single-shot spectral interferometry with a fully characterized coherent-state reference pulse. Our approach reveals that the group delay is consistent between the various shots, resulting in an average pulse duration of 27.2 fs, much shorter than the pump pulse, and a variation of 5.5 fs (standard deviation). We also observe a characteristic nodal structure in the spectral interferograms, demonstrating the BSV's random phase ambiguity of $π$ rad. Our approach demonstrates that BSV is a viable source of femtosecond light pulses for attosecond sub-cycle metrology of ultrafast electron dynamics. |
| title | Single-shot pulse retrieval of femtosecond bright squeezed vacuum |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2509.17746 |