Negligible carrier envelope phase dependence of total single and double ionization yields of xenon
We investigate the carrier-envelope phase dependence of the total ionization yield for single and double ionization of xenon. We compare our results to theoretical calculations and to the phase dependent asymmetry in photoelectron emission. We observe that the phase dependence of the photoion yields...
| Main Authors: | , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2006
|
| _version_ | 1797056775218790400 |
|---|---|
| author | O'Keeffe, K Lezius, M |
| author_facet | O'Keeffe, K Lezius, M |
| author_sort | O'Keeffe, K |
| collection | OXFORD |
| description | We investigate the carrier-envelope phase dependence of the total ionization yield for single and double ionization of xenon. We compare our results to theoretical calculations and to the phase dependent asymmetry in photoelectron emission. We observe that the phase dependence of the photoion yields, regardless if single or double ionization, is at least 2-3 orders of magnitude below the photoelectron emission signal. We conclude that total photoionization yields are only very weakly dependent on the carrier envelope phase, and that they are not a useful means for measurement of the phase. It seems possible that the broad bandwidth of few-cycle pulses facilitates multiphoton ionization, which leads to a randomization of strong field ionization phase dependencies. Besides, we observe that the spatial asymmetry in photoelectron emission appears to be useful as an indicator for the laser pulse duration in the few cycle regime. |
| first_indexed | 2024-03-06T19:27:14Z |
| format | Journal article |
| id | oxford-uuid:1c2dc62c-57d6-4c0d-bdbc-3c77ae56ead6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:27:14Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:1c2dc62c-57d6-4c0d-bdbc-3c77ae56ead62022-03-26T11:04:19ZNegligible carrier envelope phase dependence of total single and double ionization yields of xenonJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1c2dc62c-57d6-4c0d-bdbc-3c77ae56ead6EnglishSymplectic Elements at Oxford2006O'Keeffe, KLezius, MWe investigate the carrier-envelope phase dependence of the total ionization yield for single and double ionization of xenon. We compare our results to theoretical calculations and to the phase dependent asymmetry in photoelectron emission. We observe that the phase dependence of the photoion yields, regardless if single or double ionization, is at least 2-3 orders of magnitude below the photoelectron emission signal. We conclude that total photoionization yields are only very weakly dependent on the carrier envelope phase, and that they are not a useful means for measurement of the phase. It seems possible that the broad bandwidth of few-cycle pulses facilitates multiphoton ionization, which leads to a randomization of strong field ionization phase dependencies. Besides, we observe that the spatial asymmetry in photoelectron emission appears to be useful as an indicator for the laser pulse duration in the few cycle regime. |
| spellingShingle | O'Keeffe, K Lezius, M Negligible carrier envelope phase dependence of total single and double ionization yields of xenon |
| title | Negligible carrier envelope phase dependence of total single and double ionization yields of xenon |
| title_full | Negligible carrier envelope phase dependence of total single and double ionization yields of xenon |
| title_fullStr | Negligible carrier envelope phase dependence of total single and double ionization yields of xenon |
| title_full_unstemmed | Negligible carrier envelope phase dependence of total single and double ionization yields of xenon |
| title_short | Negligible carrier envelope phase dependence of total single and double ionization yields of xenon |
| title_sort | negligible carrier envelope phase dependence of total single and double ionization yields of xenon |
| work_keys_str_mv | AT okeeffek negligiblecarrierenvelopephasedependenceoftotalsingleanddoubleionizationyieldsofxenon AT leziusm negligiblecarrierenvelopephasedependenceoftotalsingleanddoubleionizationyieldsofxenon |