Measurement of infrared optical constants with visible photons
We demonstrate a new scheme for infrared spectroscopy with visible light sources and detectors. The technique relies on the nonlinear interference of correlated photons, produced via spontaneous parametric down conversion in a nonlinear crystal. Visible and infrared photons are split into two paths...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2018-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aab5ce |
| _version_ | 1797750794451156992 |
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| author | Anna Paterova Hongzhi Yang Chengwu An Dmitry Kalashnikov Leonid Krivitsky |
| author_facet | Anna Paterova Hongzhi Yang Chengwu An Dmitry Kalashnikov Leonid Krivitsky |
| author_sort | Anna Paterova |
| collection | DOAJ |
| description | We demonstrate a new scheme for infrared spectroscopy with visible light sources and detectors. The technique relies on the nonlinear interference of correlated photons, produced via spontaneous parametric down conversion in a nonlinear crystal. Visible and infrared photons are split into two paths and the infrared photons interact with the sample under study. The photons are reflected back to the crystal, resembling a conventional Michelson interferometer. Interference of the visible photons is observed and it is dependent on the phases of all three interacting photons: pump, visible and infrared. The transmission coefficient and the refractive index of the sample in the infrared range can be inferred from the interference pattern of visible photons. The method does not require the use of potentially expensive and inefficient infrared detectors and sources, it can be applied to a broad variety of samples, and it does not require a priori knowledge of sample properties in the visible range. |
| first_indexed | 2024-03-12T16:37:58Z |
| format | Article |
| id | doaj.art-e6ca4bd233cc4aa28428359ca8ad204a |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:37:58Z |
| publishDate | 2018-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-e6ca4bd233cc4aa28428359ca8ad204a2023-08-08T14:48:50ZengIOP PublishingNew Journal of Physics1367-26302018-01-0120404301510.1088/1367-2630/aab5ceMeasurement of infrared optical constants with visible photonsAnna Paterova0Hongzhi Yang1Chengwu An2Dmitry Kalashnikov3Leonid Krivitsky4https://orcid.org/0000-0001-8757-9200Data Storage Institute , Agency for Science Technology and Research (A*STAR), 138634, Singapore; School of Electrical and Electronic Engineering, Nanyang Technological University , 639798, SingaporeData Storage Institute , Agency for Science Technology and Research (A*STAR), 138634, SingaporeData Storage Institute , Agency for Science Technology and Research (A*STAR), 138634, SingaporeData Storage Institute , Agency for Science Technology and Research (A*STAR), 138634, SingaporeData Storage Institute , Agency for Science Technology and Research (A*STAR), 138634, SingaporeWe demonstrate a new scheme for infrared spectroscopy with visible light sources and detectors. The technique relies on the nonlinear interference of correlated photons, produced via spontaneous parametric down conversion in a nonlinear crystal. Visible and infrared photons are split into two paths and the infrared photons interact with the sample under study. The photons are reflected back to the crystal, resembling a conventional Michelson interferometer. Interference of the visible photons is observed and it is dependent on the phases of all three interacting photons: pump, visible and infrared. The transmission coefficient and the refractive index of the sample in the infrared range can be inferred from the interference pattern of visible photons. The method does not require the use of potentially expensive and inefficient infrared detectors and sources, it can be applied to a broad variety of samples, and it does not require a priori knowledge of sample properties in the visible range.https://doi.org/10.1088/1367-2630/aab5ceIR spectroscopyinterferometryquantum and nonlinear optics |
| spellingShingle | Anna Paterova Hongzhi Yang Chengwu An Dmitry Kalashnikov Leonid Krivitsky Measurement of infrared optical constants with visible photons New Journal of Physics IR spectroscopy interferometry quantum and nonlinear optics |
| title | Measurement of infrared optical constants with visible photons |
| title_full | Measurement of infrared optical constants with visible photons |
| title_fullStr | Measurement of infrared optical constants with visible photons |
| title_full_unstemmed | Measurement of infrared optical constants with visible photons |
| title_short | Measurement of infrared optical constants with visible photons |
| title_sort | measurement of infrared optical constants with visible photons |
| topic | IR spectroscopy interferometry quantum and nonlinear optics |
| url | https://doi.org/10.1088/1367-2630/aab5ce |
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