{"id":"https://openalex.org/A5081855412","orcid":"https://orcid.org/0000-0001-9970-5497","observed_orcids":["https://orcid.org/0000-0001-9970-5497"],"display_name":"Andriy Fechan","raw_author_names":["A Fechan","A. Fechan","A. V. Fechan","Andrii Fechan","Andrij Fechan","Andriy Fechan","Andriy Vasylyovych Fechan","Fechan A","\u0410. \u0412. \u0424\u0435\u0447\u0430\u043d","\u0410\u043d\u0434\u0440\u0456\u0439 \u0424\u0435\u0447\u0430\u043d","\u0424\u0435\u0447\u0430\u043d \u0410"],"full_name":"Andriy Vasylyovych Fechan","works_count":84,"cited_by_count":209,"summary_stats":{"2yr_mean_citedness":0.5454545454545454,"h_index":8,"i10_index":5},"ids":{"openalex":"https://openalex.org/A5081855412","orcid":"https://orcid.org/0000-0001-9970-5497","observed_orcids":["https://orcid.org/0000-0001-9970-5497"]},"affiliations":[{"institution":{"id":"https://openalex.org/I98435010","ror":"https://ror.org/0542q3127","display_name":"Lviv Polytechnic National University","country_code":"UA","type":"education","lineage":["https://openalex.org/I98435010"]},"years":[2026,2025,2024,2023,2022,2021,2019,2018,2017,2016,2015,2014,2012,2011,2010,2008,2007,2006,2004,2002,2001,1997,1996,1993]}],"last_known_institutions":[{"id":"https://openalex.org/I98435010","ror":"https://ror.org/0542q3127","display_name":"Lviv Polytechnic National University","country_code":"UA","type":"education","lineage":["https://openalex.org/I98435010"]}],"topics":[{"id":"https://openalex.org/T10306","display_name":"Liquid Crystal Research Advancements","count":52,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10666","display_name":"Photonic Crystals and Applications","count":13,"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/T11025","display_name":"Nonlinear Optical Materials Research","count":12,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11050","display_name":"Photorefractive and Nonlinear Optics","count":12,"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/T11408","display_name":"Advanced Optical Imaging Technologies","count":8,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T10306","display_name":"Liquid Crystal Research Advancements","value":0.0002774,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10666","display_name":"Photonic Crystals and Applications","value":0.0001004,"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/T11025","display_name":"Nonlinear Optical Materials Research","value":9.65e-05,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11408","display_name":"Advanced Optical Imaging Technologies","value":5.33e-05,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T13270","display_name":"QR Code Applications and Technologies","value":4.22e-05,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"13274807","wikidata":"https://www.wikidata.org/wiki/Q203989","display_name":"Liquid crystal","score":0.9673128724098206},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.8592357635498047},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.7985000014305115},{"id":"49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","score":0.7178594470024109},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.3880528509616852}],"counts_by_year":[{"year":1993,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":2,"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":3,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":8,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":0,"cited_by_count":3},{"year":2013,"works_count":1,"oa_works_count":1,"cited_by_count":2},{"year":2014,"works_count":6,"oa_works_count":2,"cited_by_count":10},{"year":2015,"works_count":3,"oa_works_count":0,"cited_by_count":9},{"year":2016,"works_count":2,"oa_works_count":1,"cited_by_count":7},{"year":2017,"works_count":2,"oa_works_count":0,"cited_by_count":20},{"year":2018,"works_count":3,"oa_works_count":0,"cited_by_count":9},{"year":2019,"works_count":1,"oa_works_count":0,"cited_by_count":15},{"year":2020,"works_count":1,"oa_works_count":0,"cited_by_count":17},{"year":2021,"works_count":3,"oa_works_count":1,"cited_by_count":21},{"year":2022,"works_count":4,"oa_works_count":3,"cited_by_count":24},{"year":2023,"works_count":2,"oa_works_count":1,"cited_by_count":9},{"year":2024,"works_count":7,"oa_works_count":5,"cited_by_count":14},{"year":2025,"works_count":11,"oa_works_count":7,"cited_by_count":20},{"year":2026,"works_count":4,"oa_works_count":3,"cited_by_count":6}],"display_name_alternatives":["A Fechan","A. Fechan","A. V. Fechan","Andrii Fechan","Andrij Fechan","Andriy Fechan","Andriy Vasylyovych Fechan","Fechan A","\u0410. \u0412. \u0424\u0435\u0447\u0430\u043d","\u0410\u043d\u0434\u0440\u0456\u0439 \u0424\u0435\u0447\u0430\u043d","\u0424\u0435\u0447\u0430\u043d \u0410"],"block_key":"a fechan","works_api_url":"https://api.openalex.org/works?filter=author.id:A5081855412","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5081855412","updated_date":"2026-11-14T11:48:19","created_date":"2016-06-24T00:00:00"}