{"id":"https://openalex.org/A5113461760","orcid":null,"observed_orcids":[],"display_name":"Klein L. Johnson","raw_author_names":["JOHNSON, KLEIN","JOHNSON, KLEIN L.","JOHNSON, KLEIN LEONARD","JOHNSON, KLEIN, L.","JOHNSON, KLEIN, LEONARD","K. L. Johnson","K.L. Johnson","Klein Johnson","Klein L. Johnson"],"full_name":"Klein L. Johnson","works_count":65,"cited_by_count":396,"summary_stats":{"2yr_mean_citedness":5.75,"h_index":10,"i10_index":12},"ids":{"openalex":"https://openalex.org/A5113461760","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I130238516","ror":"https://ror.org/017zqws13","display_name":"University of Minnesota","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]},"years":[2002,1998,1995,1994,1993]},{"institution":{"id":"https://openalex.org/I177336056","ror":"https://ror.org/045d0h266","display_name":"OSRAM (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I177336056","https://openalex.org/I4210103613"]},"years":[2024,2023]},{"institution":{"id":"https://openalex.org/I2800403580","ror":"https://ror.org/03grvy078","display_name":"University of Minnesota System","country_code":"US","type":"education","lineage":["https://openalex.org/I2800403580"]},"years":[1995,1994,1993]},{"institution":{"id":"https://openalex.org/I4210124840","ror":"https://ror.org/02jndq195","display_name":"Vixar (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I4210124840"]},"years":[2022,2021,2018,2014,2013,2012,2011,2010,2009,2007]},{"institution":{"id":"https://openalex.org/I4388891779","ror":"https://ror.org/01z60hv97","display_name":"Lockheed Missiles and Space Company (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I1287521167","https://openalex.org/I4388891779"]},"years":[1982,1978]},{"institution":{"id":"https://openalex.org/I4388891857","ror":"https://ror.org/01zhx8042","display_name":"Lockheed (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I1287521167","https://openalex.org/I4388891857"]},"years":[1982]},{"institution":{"id":"https://openalex.org/I82514191","ror":"https://ror.org/02t71h845","display_name":"Honeywell (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I82514191"]},"years":[2003,2002,1996,1995]}],"last_known_institutions":[{"id":"https://openalex.org/I177336056","ror":"https://ror.org/045d0h266","display_name":"OSRAM (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I177336056","https://openalex.org/I4210103613"]}],"topics":[{"id":"https://openalex.org/T11429","display_name":"Semiconductor Lasers and Optical Devices","count":55,"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/T10299","display_name":"Photonic and Optical Devices","count":43,"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/T14158","display_name":"Optical Systems and Laser Technology","count":22,"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/T10022","display_name":"Semiconductor Quantum Structures and Devices","count":20,"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/T12309","display_name":"solar cell performance optimization","count":8,"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"}}],"topic_share":[{"id":"https://openalex.org/T10299","display_name":"Photonic and Optical Devices","value":0.0001408,"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/T11429","display_name":"Semiconductor Lasers and Optical Devices","value":0.000138,"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/T14158","display_name":"Optical Systems and Laser Technology","value":0.0001376,"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/T12309","display_name":"solar cell performance optimization","value":7.08e-05,"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/T10022","display_name":"Semiconductor Quantum Structures and Devices","value":5.32e-05,"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":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.8491624593734741},{"id":"120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","score":0.8080999851226807},{"id":"49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","score":0.7721564173698425},{"id":"520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","score":0.6884999871253967},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.4384489357471466}],"counts_by_year":[{"year":1978,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":1,"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":1,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":6,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":1,"cited_by_count":13},{"year":2013,"works_count":2,"oa_works_count":0,"cited_by_count":15},{"year":2014,"works_count":2,"oa_works_count":0,"cited_by_count":17},{"year":2015,"works_count":2,"oa_works_count":0,"cited_by_count":15},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2017,"works_count":1,"oa_works_count":0,"cited_by_count":11},{"year":2018,"works_count":3,"oa_works_count":1,"cited_by_count":3},{"year":2019,"works_count":2,"oa_works_count":0,"cited_by_count":4},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2021,"works_count":2,"oa_works_count":0,"cited_by_count":20},{"year":2022,"works_count":1,"oa_works_count":0,"cited_by_count":18},{"year":2023,"works_count":5,"oa_works_count":1,"cited_by_count":42},{"year":2024,"works_count":4,"oa_works_count":0,"cited_by_count":56},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":50},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":31}],"display_name_alternatives":["JOHNSON, KLEIN","JOHNSON, KLEIN L.","JOHNSON, KLEIN LEONARD","JOHNSON, KLEIN, L.","JOHNSON, KLEIN, LEONARD","K. L. Johnson","K.L. Johnson","Klein Johnson","Klein L. Johnson"],"block_key":"k johnson","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113461760","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}