{"paper":{"title":"Threefold Efficiency Enhancement and Narrowed Nanoparticle Size Distribution in Laser Ablation of Gold in Water by GHz-Burst Irradiation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"GHz-burst irradiation triples ablation efficiency for gold in water by delivering energy before cavitation bubble shielding begins.","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Anna R. Ziefuss, Daniel J. Foerster, Heinz. P. Huber, Maximilian Spellauge, Ramon Auer, Vincent Taebling","submitted_at":"2026-05-13T10:40:29Z","abstract_excerpt":"Laser ablation in liquids enables the synthesis of surfactant-free nanoparticles but remains limited in productivity due to intrinsic constraints imposed by the liquid environment. These constraints include nonlinear optical losses, material redeposition, and cavitation bubble-induced shielding. Temporal intensity shaping of the incident laser pulse offers a potential route to mitigate these limitations. Here, ultrashort GHz-burst ablation is applied to laser ablation of gold in water. By distributing the pulse energy into a sequence of picosecond sub-pulses arriving within the nanosecond time"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"By distributing the pulse energy into a sequence of picosecond sub-pulses arriving within the nanosecond time window preceding cavitation bubble formation, GHz-burst irradiation enables energy delivery before the onset of bubble-induced shielding. This increases the threshold fluence for nonlinear losses and yields an ablation efficiency enhancement of up to a factor of three compared to single-pulse ablation. In addition, burst irradiation yields a twofold narrower nanoparticle size distribution.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The timing window for sub-pulses is assumed to deliver energy before cavitation bubble shielding begins without introducing new loss channels such as cumulative heating or altered plasma dynamics that could offset the gain.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"GHz-burst irradiation triples ablation efficiency and narrows gold nanoparticle size distribution twofold in water without increasing cavitation bubble size or lifetime.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"GHz-burst irradiation triples ablation efficiency for gold in water by delivering energy before cavitation bubble shielding begins.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"e2811d234646df8f36f0d7ab41f4a1ea05b39e831862b217cb16e495167ac85e"},"source":{"id":"2605.13327","kind":"arxiv","version":1},"verdict":{"id":"5c00ca3b-adfa-45e3-a00c-4b8389f9bcf2","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-14T18:35:04.892646Z","strongest_claim":"By distributing the pulse energy into a sequence of picosecond sub-pulses arriving within the nanosecond time window preceding cavitation bubble formation, GHz-burst irradiation enables energy delivery before the onset of bubble-induced shielding. This increases the threshold fluence for nonlinear losses and yields an ablation efficiency enhancement of up to a factor of three compared to single-pulse ablation. In addition, burst irradiation yields a twofold narrower nanoparticle size distribution.","one_line_summary":"GHz-burst irradiation triples ablation efficiency and narrows gold nanoparticle size distribution twofold in water without increasing cavitation bubble size or lifetime.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The timing window for sub-pulses is assumed to deliver energy before cavitation bubble shielding begins without introducing new loss channels such as cumulative heating or altered plasma dynamics that could offset the gain.","pith_extraction_headline":"GHz-burst irradiation triples ablation efficiency for gold in water by delivering energy before cavitation bubble shielding begins."},"references":{"count":43,"sample":[{"doi":"10.1039/b900654k","year":2009,"title":"V. Amendola, M. Meneghetti, Laser ablation synthesis in solution and size manipulation of noble metal nanoparticles, Phys. Chem. Chem. Phys. 11 (2009) 3805. https://doi.org/10.1039/b900654k","work_id":"a346aa85-1173-4467-8f6d-cec0ec6b29f2","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1021/acs.chemrev.6b00468","year":2017,"title":"D. Zhang, B. Gökce, S. Barcikowski, Laser Synthesis and Processing of Colloids: Fundamentals and Applications, Chem. Rev. 117 (2017) 3990–4103. https://doi.org/10.1021/acs.chemrev.6b00468","work_id":"0a030853-f91d-41c1-aad3-80963d74fc2b","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1021/acs.chemrev.0c01069","year":2021,"title":"R.C. Forsythe, C.P. Cox, M.K. Wilsey, A.M. Müller, Pulsed Laser in Liquids Made Nanomaterials for Catalysis, Chem. Rev. 121 (2021) 7568–7637. https://doi.org/10.1021/acs.chemrev.0c01069","work_id":"b9d7c694-09e3-4a14-a7dd-566e8d23557a","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1002/advs.202407972","year":2024,"title":"P. Gabriel, V. Nallathambi, J. Liu, F. Staab, T.D. Oyedeji, Y. Yang, N. Hantke, E. Adabifiroozjaei, O. Recalde‐Benitez, L. Molina‐Luna, Z. Rao, B. Gault, J.T. Sehrt, F. Scheibel, K. Skokov, B. Xu, K. ","work_id":"d464e473-6461-4dc2-b9a0-0318578c302c","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1002/cphc.201601139","year":2017,"title":"S. Jendrzej, B. Gökce, M. Epple, S. Barcikowski, How Size Determines the Value of Gold: Economic Aspects of Wet Chemical and Laser-Based Metal Colloid Synthesis, ChemPhysChem. 18 (2017) 1012–1019. htt","work_id":"464f1395-e59c-44db-bdaf-e77154c6affb","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":43,"snapshot_sha256":"ef842e77e405e052a5b0afb1f60405b3c54e7dbb2a8de29248d44e0ae3d2af5c","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"540f9cfd3aab6a292b2157e5bc9accf2e690e62f4896d595f399c7cb5aad732d"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}