Optical coherence tomography with a nonlinear interferometer in the high parametric gain regime
We demonstrate optical coherence tomography based on an SU(1,1) nonlinear interferometer with high-gain parametric down-conversion. For imaging and sensing applications, this scheme promises to outperform previous experiments working at low parametric gain, since higher photon fluxes provide lower i...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/345054 |
| Acceso en línea: | https://hdl.handle.net/2117/345054 https://dx.doi.org/10.1063/5.0016259 |
| Access Level: | acceso abierto |
| Palabra clave: | Tomography Optical interferometers Optical coherence tomography Parametric down-conversion Nonlinear interferometers Tomografia òptica Coherència (Òptica) Àrees temàtiques de la UPC::Física::Física de partícules |
| Sumario: | We demonstrate optical coherence tomography based on an SU(1,1) nonlinear interferometer with high-gain parametric down-conversion. For imaging and sensing applications, this scheme promises to outperform previous experiments working at low parametric gain, since higher photon fluxes provide lower integration times for obtaining high-quality images. In this way one can avoid using single-photon detectors or CCD cameras with very high sensitivities, and standard spectrometers can be used instead. Other advantages are: higher sensitivity to small loss and amplification before detection, so that the detected light power considerably exceeds the probing one. |
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