{"id":"W1757592604","doi":"10.1364/ao.54.005949","title":"Diffraction-resistant scalar beams generated by a parabolic reflector and a source of spherical waves","year":2015,"lang":"en","type":"article","venue":"Applied Optics","topic":"Orbital Angular Momentum in Optics","field":"Physics and Astronomy","cited_by":3,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"Conselho Nacional de Desenvolvimento Científico e Tecnológico; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; Fundação de Amparo à Pesquisa do Estado de São Paulo","keywords":"Diffraction; Optics; Parabolic reflector; Reflector (photography); Wavelength; Physics; Diffraction efficiency; Fresnel diffraction; Materials science; Light source","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0006100296,0.0006847819,0.0004722099,0.0003626689,0.0001735572,0.0004186474,0.0005662571,0.0004329951,0.00142827],"category_scores_gemma":[0.0006089421,0.0003749251,0.0004747481,0.0003757256,0.0005196597,0.0005737689,0.0005476656,0.0003885199,0.000774599],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002161942,"about_ca_system_score_gemma":0.0002411709,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001262109,"about_ca_topic_score_gemma":0.0001732043,"domain_scores_codex":[0.9996206,0.00007259006,0.00002009597,0.00005358773,0.0001944151,0.00003873859],"domain_scores_gemma":[0.9995159,0.0001229885,0.0001397026,0.0001005564,0.00008683297,0.00003410971],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0002506217,0.00005614023,0.0009037467,0.0002444481,0.00004138941,0.0002239401,0.0001962104,0.003733686,0.9503532,0.02269488,0.0002779043,0.02102389],"study_design_scores_gemma":[0.00009208612,0.0005704487,0.001595248,0.00002130998,0.00004536082,0.0005117118,0.00008955459,0.02665208,0.9619946,0.002485491,0.005884597,0.00005747827],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.5177847,0.001071622,0.4675651,0.000268319,0.0001703636,0.0002022103,0.0001688244,0.0005014103,0.01226748],"genre_scores_gemma":[0.7813513,0.001140034,0.2094941,0.0001293075,0.00008330943,0.0001133412,0.0001792137,0.0001053985,0.007404096],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00142827,"threshold_uncertainty_score":0.004778087,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01199300966310075,"score_gpt":0.2356351223538763,"score_spread":0.2236421126907756,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}