{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Shields T"],"funding":["European Research Council"],"pagination":["9432"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9739430"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["22(23)"],"pubmed_abstract":["Electro-optical sampling of Terahertz fields with ultrashort pulsed probes is a well-established approach for directly measuring the electric field of THz radiation. This technique usually relies on balanced detection to record the optical phase shift brought by THz-induced birefringence. The sensitivity of electro-optical sampling is, therefore, limited by the shot noise of the probe pulse, and improvements could be achieved using quantum metrology approaches using, e.g., NOON states for Heisenberg-limited phase estimation. We report on our experiments on THz electro-optical sampling using single-photon detectors and a weak squeezed vacuum field as the optical probe. Our approach achieves field sensitivity limited by the probe state statistical properties using phase-locked single-photon detectors and paves the way for further studies targeting quantum-enhanced THz sensing."],"journal":["Sensors (Basel, Switzerland)"],"pubmed_title":["Electro-Optical Sampling of Single-Cycle THz Fields with Single-Photon Detectors."],"pmcid":["PMC9739430"],"funding_grant_id":["725046"],"pubmed_authors":["Dada AC","Peccianti M","Yoon S","Faccio D","Weaver JMR","Clerici M","Shields T","Hirsch L","Caspani L"],"additional_accession":[]},"is_claimable":false,"name":"Electro-Optical Sampling of Single-Cycle THz Fields with Single-Photon Detectors.","description":"Electro-optical sampling of Terahertz fields with ultrashort pulsed probes is a well-established approach for directly measuring the electric field of THz radiation. This technique usually relies on balanced detection to record the optical phase shift brought by THz-induced birefringence. The sensitivity of electro-optical sampling is, therefore, limited by the shot noise of the probe pulse, and improvements could be achieved using quantum metrology approaches using, e.g., NOON states for Heisenberg-limited phase estimation. We report on our experiments on THz electro-optical sampling using single-photon detectors and a weak squeezed vacuum field as the optical probe. Our approach achieves field sensitivity limited by the probe state statistical properties using phase-locked single-photon detectors and paves the way for further studies targeting quantum-enhanced THz sensing.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Dec","modification":"2025-04-20T03:30:52.169Z","creation":"2025-04-20T03:30:52.169Z"},"accession":"S-EPMC9739430","cross_references":{"pubmed":["36502131"],"doi":["10.3390/s22239432"]}}