Spatial-to-spectral phase coupling mechanisms in bulk continuum generation
We study the coherence properties of continuum generation in YAG crystals seeded by 180 fs pulses at 1035 nm when the driving beam exhibits small fluctuations of the spatial phase. The relative stability of the continuum spectral phase is first assessed as a function of the driver wavefront aberrati...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | JPhys Photonics |
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| Online Access: | https://doi.org/10.1088/2515-7647/ad41ac |
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| _version_ | 1846118609124851712 |
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| author | Benjamin Maingot Nicolas Forget Aurélie Jullien |
| author_facet | Benjamin Maingot Nicolas Forget Aurélie Jullien |
| author_sort | Benjamin Maingot |
| collection | DOAJ |
| description | We study the coherence properties of continuum generation in YAG crystals seeded by 180 fs pulses at 1035 nm when the driving beam exhibits small fluctuations of the spatial phase. The relative stability of the continuum spectral phase is first assessed as a function of the driver wavefront aberrations. Furthermore, we evidence and quantify a coupling mechanism between these fluctuations and the spectral phase of the continuum. The coupling coefficients increase with the spectral broadening and are also unexpectedly large (up to tens of rad/rad at $\simeq$ 750 nm). Experimental evidence supports that longitudinal shifts of the position of the filament within the crystal are responsible for such strong effects. |
| format | Article |
| id | doaj-art-f180e5a87dec4961b7d3d6e7d0242f6c |
| institution | Kabale University |
| issn | 2515-7647 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | JPhys Photonics |
| spelling | doaj-art-f180e5a87dec4961b7d3d6e7d0242f6c2024-12-17T13:50:50ZengIOP PublishingJPhys Photonics2515-76472024-01-016303500210.1088/2515-7647/ad41acSpatial-to-spectral phase coupling mechanisms in bulk continuum generationBenjamin Maingot0Nicolas Forget1Aurélie Jullien2https://orcid.org/0000-0002-7776-8312Université Côte d’Azur, CNRS, Institut de Physique de Nice (INPHYNI) , UMR 7010, 17 rue Julien Lauprêtre, 06 200 Nice, France; Fastlite , 165 route des Cistes, 06600 Antibes, FranceUniversité Côte d’Azur, CNRS, Institut de Physique de Nice (INPHYNI) , UMR 7010, 17 rue Julien Lauprêtre, 06 200 Nice, France; Fastlite , 165 route des Cistes, 06600 Antibes, FranceUniversité Côte d’Azur, CNRS, Institut de Physique de Nice (INPHYNI) , UMR 7010, 17 rue Julien Lauprêtre, 06 200 Nice, FranceWe study the coherence properties of continuum generation in YAG crystals seeded by 180 fs pulses at 1035 nm when the driving beam exhibits small fluctuations of the spatial phase. The relative stability of the continuum spectral phase is first assessed as a function of the driver wavefront aberrations. Furthermore, we evidence and quantify a coupling mechanism between these fluctuations and the spectral phase of the continuum. The coupling coefficients increase with the spectral broadening and are also unexpectedly large (up to tens of rad/rad at $\simeq$ 750 nm). Experimental evidence supports that longitudinal shifts of the position of the filament within the crystal are responsible for such strong effects.https://doi.org/10.1088/2515-7647/ad41acultrafast opticscontinuumphase |
| spellingShingle | Benjamin Maingot Nicolas Forget Aurélie Jullien Spatial-to-spectral phase coupling mechanisms in bulk continuum generation JPhys Photonics ultrafast optics continuum phase |
| title | Spatial-to-spectral phase coupling mechanisms in bulk continuum generation |
| title_full | Spatial-to-spectral phase coupling mechanisms in bulk continuum generation |
| title_fullStr | Spatial-to-spectral phase coupling mechanisms in bulk continuum generation |
| title_full_unstemmed | Spatial-to-spectral phase coupling mechanisms in bulk continuum generation |
| title_short | Spatial-to-spectral phase coupling mechanisms in bulk continuum generation |
| title_sort | spatial to spectral phase coupling mechanisms in bulk continuum generation |
| topic | ultrafast optics continuum phase |
| url | https://doi.org/10.1088/2515-7647/ad41ac |
| work_keys_str_mv | AT benjaminmaingot spatialtospectralphasecouplingmechanismsinbulkcontinuumgeneration AT nicolasforget spatialtospectralphasecouplingmechanismsinbulkcontinuumgeneration AT aureliejullien spatialtospectralphasecouplingmechanismsinbulkcontinuumgeneration |