{"id":"https://openalex.org/W2085648083","doi":"https://doi.org/10.1109/ants.2009.5409847","title":"Free-space optical links using phase singularity","display_name":"Free-space optical links using phase singularity","publication_year":2009,"publication_date":"2009-12-01","ids":{"openalex":"https://openalex.org/W2085648083","doi":"https://doi.org/10.1109/ants.2009.5409847","mag":"2085648083"},"language":"en","primary_location":{"id":"doi:10.1109/ants.2009.5409847","doi":"https://doi.org/10.1109/ants.2009.5409847","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ants.2009.5409847","pdf_url":null,"source":{"id":"https://openalex.org/S4306418646","display_name":"IEEE International Conference on Advanced Networks and Telecommunications Systems","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE 3rd International Symposium on Advanced Networks and Telecommunication Systems (ANTS)","raw_type":"proceedings-article"},"volume":null,"type":"conference-paper","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101729756","display_name":"Bharat Kumar Yadav","orcid":"https://orcid.org/0000-0002-3294-7165","observed_orcids":["https://orcid.org/0000-0002-3294-7165"]},"institutions":[{"id":"https://openalex.org/I66760702","display_name":"Council of Scientific and Industrial Research","ror":"https://ror.org/021wm7p51","country_code":"IN","type":"government","lineage":["https://openalex.org/I2799351866","https://openalex.org/I4210134808","https://openalex.org/I66760702"]},{"id":"https://openalex.org/I88910343","display_name":"CSIR National Physical Laboratory of India","ror":"https://ror.org/0307k1x46","country_code":"IN","type":"facility","lineage":["https://openalex.org/I2799351866","https://openalex.org/I4210134808","https://openalex.org/I66760702","https://openalex.org/I88910343"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Bharat Kumar Yadav","raw_affiliation_strings":["National Physical Laboratory (Council of Scientific and Industrial Research), Optical Radiation Standards, New Delhi, India","Optical Radiation Standards, National Physical Laboratory (Council of Scientific and Industrial Research), Dr. K.S. Krishnan Road, New Delhi - 110012, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Physical Laboratory (Council of Scientific and Industrial Research), Optical Radiation Standards, New Delhi, India","institution_ids":["https://openalex.org/I66760702"]},{"raw_affiliation_string":"Optical Radiation Standards, National Physical Laboratory (Council of Scientific and Industrial Research), Dr. K.S. Krishnan Road, New Delhi - 110012, India","institution_ids":["https://openalex.org/I66760702","https://openalex.org/I88910343"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5066394784","display_name":"Hem Chandra Kandpal","orcid":"https://orcid.org/0000-0002-7378-9554","observed_orcids":["https://orcid.org/0000-0002-7378-9554"]},"institutions":[{"id":"https://openalex.org/I66760702","display_name":"Council of Scientific and Industrial Research","ror":"https://ror.org/021wm7p51","country_code":"IN","type":"government","lineage":["https://openalex.org/I2799351866","https://openalex.org/I4210134808","https://openalex.org/I66760702"]},{"id":"https://openalex.org/I88910343","display_name":"CSIR National Physical Laboratory of India","ror":"https://ror.org/0307k1x46","country_code":"IN","type":"facility","lineage":["https://openalex.org/I2799351866","https://openalex.org/I4210134808","https://openalex.org/I66760702","https://openalex.org/I88910343"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Hem Chandra Kandpal","raw_affiliation_strings":["National Physical Laboratory (Council of Scientific and Industrial Research), Optical Radiation Standards, New Delhi, India","Optical Radiation Standards, National Physical Laboratory (Council of Scientific and Industrial Research), Dr. K.S. Krishnan Road, New Delhi - 110012, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Physical Laboratory (Council of Scientific and Industrial Research), Optical Radiation Standards, New Delhi, India","institution_ids":["https://openalex.org/I66760702"]},{"raw_affiliation_string":"Optical Radiation Standards, National Physical Laboratory (Council of Scientific and Industrial Research), Dr. K.S. Krishnan Road, New Delhi - 110012, India","institution_ids":["https://openalex.org/I66760702","https://openalex.org/I88910343"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"42","issue":null,"first_page":"1","last_page":"3"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10851","display_name":"Optical Wireless Communication Technologies","score":0.510699987411499,"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"}},"topics":[{"id":"https://openalex.org/T10851","display_name":"Optical Wireless Communication Technologies","score":0.510699987411499,"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/T10490","display_name":"Orbital Angular Momentum in Optics","score":0.4844000041484833,"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/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.0012000000569969416,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/free-space-optical-links","display_name":"free-space optical links","score":0.9660000205039978},{"id":"https://openalex.org/keywords/phase-singularities","display_name":"phase singularities","score":0.8109999895095825},{"id":"https://openalex.org/keywords/optical-communication","display_name":"optical communication","score":0.5960000157356262},{"id":"https://openalex.org/keywords/information-sharing","display_name":"information sharing","score":0.5419999957084656}],"concepts":[{"id":"https://openalex.org/C2988672794","wikidata":"https://www.wikidata.org/wiki/Q11475","display_name":"Free space","level":2,"score":0.7537903189659119},{"id":"https://openalex.org/C2781089630","wikidata":"https://www.wikidata.org/wiki/Q21856745","display_name":"Realization (probability)","level":2,"score":0.7110879421234131},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.613876223564148},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.535658061504364},{"id":"https://openalex.org/C16171025","wikidata":"https://www.wikidata.org/wiki/Q863349","display_name":"Singularity","level":2,"score":0.4976785480976105},{"id":"https://openalex.org/C151342819","wikidata":"https://www.wikidata.org/wiki/Q62542","display_name":"Phase space","level":2,"score":0.4397438168525696},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.4109700322151184},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.37738245725631714},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.3214036524295807},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.24433749914169312},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.21094197034835815},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.14126116037368774},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.09451186656951904},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.07411932945251465},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/ants.2009.5409847","doi":"https://doi.org/10.1109/ants.2009.5409847","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ants.2009.5409847","pdf_url":null,"source":{"id":"https://openalex.org/S4306418646","display_name":"IEEE International Conference on Advanced Networks and Telecommunications Systems","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE 3rd International Symposium on Advanced Networks and Telecommunication Systems (ANTS)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.4943999946117401}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1572643701","https://openalex.org/W1980533676","https://openalex.org/W1983841737","https://openalex.org/W1991938262","https://openalex.org/W2003166676","https://openalex.org/W2018029028","https://openalex.org/W2037185579","https://openalex.org/W2054941768","https://openalex.org/W2078827746","https://openalex.org/W2098569246","https://openalex.org/W2158805345"],"related_works":["https://openalex.org/W6941440428","https://openalex.org/W1987036249","https://openalex.org/W817887570","https://openalex.org/W3004297211","https://openalex.org/W3211788063","https://openalex.org/W4289780323","https://openalex.org/W2915484336","https://openalex.org/W2798582089","https://openalex.org/W7119360622","https://openalex.org/W2897523404"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3],"demonstrate":[4],"novel":[5],"type":[6],"of":[7],"free-space":[8],"optical":[9],"links.":[10],"It":[11],"is":[12],"a":[13,18],"contrived":[14],"idea":[15],"but":[16],"has":[17],"great":[19],"potential":[20],"for":[21],"realization.":[22],"The":[23],"links":[24],"may":[25],"be":[26],"exploited":[27],"to":[28],"exchange":[29],"information":[30],"in":[31],"free-space.":[32]},"counts_by_year":[],"updated_date":"2026-10-29T09:56:32.521200","created_date":"2016-06-24T00:00:00"}