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The integration of this functionality can be obtained either using optical media with chiro\u2010optical response, or by the employment of chiral metamaterials. In this work, 3D chiral metasurfaces composed by a 3D helix array, are integrated onto a micrometer\u2010scale silicon\u2010based transistor and act as optical filter for circularly polarized light. The technological process involving focused electron beam induced deposition for helix manufacturing is carefully studied with respect to its effect on the phototransistor response. The integrated system exhibits a photoresponse which is dependent on the circular polarization, with a promising asymmetry factor in the visible spectral range. The proposed technology can pave the way for novel potential applications in diverse areas such as materials science, bioimaging, and quantum computing.<\/jats:p>","DOI":"10.1002\/admt.202301250","type":"journal-article","created":{"date-parts":[[2023,12,24]],"date-time":"2023-12-24T23:13:45Z","timestamp":1703459625000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Circularly Polarized Light Detection Through 3D Chiral Metasurface\u2010Based Phototransistors"],"prefix":"10.1002","volume":"9","author":[{"given":"Saravanan","family":"Rajamani","sequence":"first","affiliation":[{"name":"CNR Nanotec Institute of Nanotechnology University Campus Ecotekne  Via per Monteroni Lecce 73100 Italy"}]},{"given":"Daniela","family":"Simeone","sequence":"additional","affiliation":[{"name":"CNR Nanotec Institute of Nanotechnology University Campus Ecotekne  Via per Monteroni Lecce 73100 Italy"}]},{"given":"Alessandro","family":"Pecora","sequence":"additional","affiliation":[{"name":"CNR IMM Institute for Microelectronics and Microsystems  Via del Fosso del Cavaliere 100 Roma 00133 Italy"}]},{"given":"Mariachiara","family":"Manoccio","sequence":"additional","affiliation":[{"name":"CNR Nanotec Institute of Nanotechnology University Campus Ecotekne  Via per Monteroni Lecce 73100 Italy"}]},{"given":"Gianluca","family":"Balestra","sequence":"additional","affiliation":[{"name":"CNR Nanotec Institute of Nanotechnology University Campus Ecotekne  Via per Monteroni Lecce 73100 Italy"},{"name":"Department of Mathematics and Physics \u2018\u2018Ennio De Giorgi\u201d University of Salento  C\/o Campus Ecotekne Via per Monteroni Lecce 73100 Italy"}]},{"given":"Ayaz H.","family":"Bayramov","sequence":"additional","affiliation":[{"name":"Ministry of Science and Education Institute of Physics  131 Javid ave. 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