{"id":"https://openalex.org/A5064458687","orcid":"https://orcid.org/0000-0002-5009-5832","observed_orcids":["https://orcid.org/0000-0002-5009-5832"],"display_name":"Frank A. Hegmann","raw_author_names":["F A Hegmann","F Hegmann","F. A. Hegmann","F. Hegmann","F.A. Hegmann","Frank A Hegmann","Frank A. Hegmann","Frank A. Hegmann (1598278)","Frank Hegmann","Frank\u2005A. Hegmann","Hegmann, F. A.","Hegmann, F.A.","Hegmann, Frank","Hegmann, Frank A."],"full_name":"Frank A. Hegmann","works_count":258,"cited_by_count":7592,"summary_stats":{"2yr_mean_citedness":1.125,"h_index":50,"i10_index":82},"ids":{"openalex":"https://openalex.org/A5064458687","orcid":"https://orcid.org/0000-0002-5009-5832","observed_orcids":["https://orcid.org/0000-0002-5009-5832"]},"affiliations":[{"institution":{"id":"https://openalex.org/I122411786","ror":"https://ror.org/05dxps055","display_name":"California Institute of Technology","country_code":"US","type":"education","lineage":["https://openalex.org/I122411786"]},"years":[1998]},{"institution":{"id":"https://openalex.org/I154425047","ror":"https://ror.org/0160cpw27","display_name":"University of Alberta","country_code":"CA","type":"education","lineage":["https://openalex.org/I154425047"]},"years":[2025,2024,2023,2022,2021,2020,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2002,2001,1999]},{"institution":{"id":"https://openalex.org/I154570441","ror":"https://ror.org/02t274463","display_name":"University of California, Santa Barbara","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]},"years":[2000,1999,1998,1997,1996]},{"institution":{"id":"https://openalex.org/I181233156","ror":"https://ror.org/0293rh119","display_name":"University of Oregon","country_code":"US","type":"education","lineage":["https://openalex.org/I181233156"]},"years":[2010]},{"institution":{"id":"https://openalex.org/I181369854","ror":"https://ror.org/00f7hpc57","display_name":"Friedrich-Alexander-Universit\u00e4t Erlangen-N\u00fcrnberg","country_code":"DE","type":"education","lineage":["https://openalex.org/I181369854"]},"years":[2010]},{"institution":{"id":"https://openalex.org/I4210159778","ror":"https://ror.org/04mte1k06","display_name":"National Research Council Canada","country_code":"CA","type":"government","lineage":["https://openalex.org/I4210159778"]},"years":[1989]},{"institution":{"id":"https://openalex.org/I4405262925","ror":"https://ror.org/006rjbv46","display_name":"Laboratory for Laser Energetics","country_code":"US","type":"facility","lineage":["https://openalex.org/I4405262925","https://openalex.org/I5388228"]},"years":[1995]},{"institution":{"id":"https://openalex.org/I5388228","ror":"https://ror.org/022kthw22","display_name":"University of Rochester","country_code":"US","type":"education","lineage":["https://openalex.org/I5388228"]},"years":[1995]},{"institution":{"id":"https://openalex.org/I73613424","ror":"https://ror.org/01703db54","display_name":"National Institute of Advanced Industrial Science and Technology","country_code":"JP","type":"government","lineage":["https://openalex.org/I73613424"]},"years":[2010]},{"institution":{"id":"https://openalex.org/I86987016","ror":"https://ror.org/026vcq606","display_name":"KTH Royal Institute of Technology","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]},"years":[2010]},{"institution":{"id":"https://openalex.org/I98251732","ror":"https://ror.org/02fa3aq29","display_name":"McMaster University","country_code":"CA","type":"education","lineage":["https://openalex.org/I98251732"]},"years":[2010,1995,1994,1993]}],"last_known_institutions":[{"id":"https://openalex.org/I154425047","ror":"https://ror.org/0160cpw27","display_name":"University of Alberta","country_code":"CA","type":"education","lineage":["https://openalex.org/I154425047"]}],"topics":[{"id":"https://openalex.org/T10752","display_name":"Terahertz technology and applications","count":150,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10566","display_name":"Laser-Matter Interactions and Applications","count":83,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11803","display_name":"Superconducting and THz Device Technology","count":35,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11050","display_name":"Photorefractive and Nonlinear Optics","count":24,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10037","display_name":"Physics of Superconductivity and Magnetism","count":22,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T10752","display_name":"Terahertz technology and applications","value":0.00121,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11803","display_name":"Superconducting and THz Device Technology","value":0.0002863,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14318","display_name":"Polydiacetylene-based materials and applications","value":0.0002825,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11788","display_name":"Nonlinear Optical Materials Studies","value":0.000253,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10566","display_name":"Laser-Matter Interactions and Applications","value":0.0002328,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"107816215","wikidata":"https://www.wikidata.org/wiki/Q647887","display_name":"Terahertz radiation","score":0.9681031703948975},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.8665761947631836},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.8305965065956116},{"id":"120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","score":0.8111021518707275},{"id":"49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","score":0.7932206392288208}],"counts_by_year":[{"year":1989,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1995,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":6,"oa_works_count":1,"cited_by_count":0},{"year":2003,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":10,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":25,"oa_works_count":6,"cited_by_count":0},{"year":2006,"works_count":7,"oa_works_count":2,"cited_by_count":0},{"year":2007,"works_count":11,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":9,"oa_works_count":2,"cited_by_count":0},{"year":2010,"works_count":18,"oa_works_count":5,"cited_by_count":0},{"year":2011,"works_count":8,"oa_works_count":2,"cited_by_count":0},{"year":2012,"works_count":8,"oa_works_count":1,"cited_by_count":269},{"year":2013,"works_count":7,"oa_works_count":2,"cited_by_count":324},{"year":2014,"works_count":9,"oa_works_count":1,"cited_by_count":304},{"year":2015,"works_count":12,"oa_works_count":3,"cited_by_count":318},{"year":2016,"works_count":6,"oa_works_count":1,"cited_by_count":399},{"year":2017,"works_count":13,"oa_works_count":8,"cited_by_count":350},{"year":2018,"works_count":15,"oa_works_count":5,"cited_by_count":382},{"year":2019,"works_count":3,"oa_works_count":1,"cited_by_count":413},{"year":2020,"works_count":11,"oa_works_count":1,"cited_by_count":441},{"year":2021,"works_count":9,"oa_works_count":7,"cited_by_count":475},{"year":2022,"works_count":3,"oa_works_count":0,"cited_by_count":466},{"year":2023,"works_count":9,"oa_works_count":5,"cited_by_count":510},{"year":2024,"works_count":10,"oa_works_count":5,"cited_by_count":502},{"year":2025,"works_count":6,"oa_works_count":2,"cited_by_count":462},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":279}],"display_name_alternatives":["F A Hegmann","F Hegmann","F. A. Hegmann","F. Hegmann","F.A. Hegmann","Frank A Hegmann","Frank A. Hegmann","Frank A. Hegmann (1598278)","Frank Hegmann","Frank\u2005A. Hegmann","Hegmann, F. A.","Hegmann, F.A.","Hegmann, Frank","Hegmann, Frank A."],"block_key":"f hegmann","works_api_url":"https://api.openalex.org/works?filter=author.id:A5064458687","updated_date":"2026-10-31T12:29:50","created_date":"2016-06-24T00:00:00"}
