High-order harmonic generation driven by perfect optical vortex beams: Exploring the orbital angular momentum upscaling law
Orbital angular momentum (OAM) light beams for high-order harmonic generation (HHG) provide an additional degree of freedom to study the light-matter interaction at ultrafast timescales. A more sophisticated configuration is a perfect optical vortex (POV) beam, a light beam with a helical wave front...
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| Format: | Article |
| Language: | English |
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American Physical Society
2024-12-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.6.043244 |
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| author | Bikash Kumar Das C. Granados M. Krüger Marcelo F. Ciappina |
| author_facet | Bikash Kumar Das C. Granados M. Krüger Marcelo F. Ciappina |
| author_sort | Bikash Kumar Das |
| collection | DOAJ |
| description | Orbital angular momentum (OAM) light beams for high-order harmonic generation (HHG) provide an additional degree of freedom to study the light-matter interaction at ultrafast timescales. A more sophisticated configuration is a perfect optical vortex (POV) beam, a light beam with a helical wave front characterized by a phase singularity at its center and an azimuthal phase variation. POV beams are characterized by a radial profile which is independent of the OAM. Here, we study the nonperturbative process of gas-phase HHG using a linearly polarized POV beam. We observe that the harmonics are emitted with similar divergence due to the perfectness of the POV-driven harmonic generation. Furthermore, the topological charge upscaling is rigorously followed. We show that a POV beam is more advantageous than that of the Laguerre-Gaussian beam for cases where a large topological charge with a small core size is required. Our research establishes a pathway for producing bright structured extreme ultraviolet coherent radiation sources—a pivotal tool with multifaceted applications across various technological domains. |
| format | Article |
| id | doaj-art-159e2d15dc4240f5bbb7af713d705774 |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-159e2d15dc4240f5bbb7af713d7057742025-01-27T15:06:57ZengAmerican Physical SocietyPhysical Review Research2643-15642024-12-016404324410.1103/PhysRevResearch.6.043244High-order harmonic generation driven by perfect optical vortex beams: Exploring the orbital angular momentum upscaling lawBikash Kumar DasC. GranadosM. KrügerMarcelo F. CiappinaOrbital angular momentum (OAM) light beams for high-order harmonic generation (HHG) provide an additional degree of freedom to study the light-matter interaction at ultrafast timescales. A more sophisticated configuration is a perfect optical vortex (POV) beam, a light beam with a helical wave front characterized by a phase singularity at its center and an azimuthal phase variation. POV beams are characterized by a radial profile which is independent of the OAM. Here, we study the nonperturbative process of gas-phase HHG using a linearly polarized POV beam. We observe that the harmonics are emitted with similar divergence due to the perfectness of the POV-driven harmonic generation. Furthermore, the topological charge upscaling is rigorously followed. We show that a POV beam is more advantageous than that of the Laguerre-Gaussian beam for cases where a large topological charge with a small core size is required. Our research establishes a pathway for producing bright structured extreme ultraviolet coherent radiation sources—a pivotal tool with multifaceted applications across various technological domains.http://doi.org/10.1103/PhysRevResearch.6.043244 |
| spellingShingle | Bikash Kumar Das C. Granados M. Krüger Marcelo F. Ciappina High-order harmonic generation driven by perfect optical vortex beams: Exploring the orbital angular momentum upscaling law Physical Review Research |
| title | High-order harmonic generation driven by perfect optical vortex beams: Exploring the orbital angular momentum upscaling law |
| title_full | High-order harmonic generation driven by perfect optical vortex beams: Exploring the orbital angular momentum upscaling law |
| title_fullStr | High-order harmonic generation driven by perfect optical vortex beams: Exploring the orbital angular momentum upscaling law |
| title_full_unstemmed | High-order harmonic generation driven by perfect optical vortex beams: Exploring the orbital angular momentum upscaling law |
| title_short | High-order harmonic generation driven by perfect optical vortex beams: Exploring the orbital angular momentum upscaling law |
| title_sort | high order harmonic generation driven by perfect optical vortex beams exploring the orbital angular momentum upscaling law |
| url | http://doi.org/10.1103/PhysRevResearch.6.043244 |
| work_keys_str_mv | AT bikashkumardas highorderharmonicgenerationdrivenbyperfectopticalvortexbeamsexploringtheorbitalangularmomentumupscalinglaw AT cgranados highorderharmonicgenerationdrivenbyperfectopticalvortexbeamsexploringtheorbitalangularmomentumupscalinglaw AT mkruger highorderharmonicgenerationdrivenbyperfectopticalvortexbeamsexploringtheorbitalangularmomentumupscalinglaw AT marcelofciappina highorderharmonicgenerationdrivenbyperfectopticalvortexbeamsexploringtheorbitalangularmomentumupscalinglaw |