Lemieux, Samuel ; Giese, Enno ; Fickler, Robert ; Chekhova, Maria V. ; Boyd, Robert W. (2019)
A primary radiation standard based on quantum nonlinear optics.
In: Nature Physics, 15 (6)
doi: 10.1038/s41567-019-0447-2
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
The black body remains the most prominent source of light for absolute radiometry. Its main alternative, synchrotron radiation, requires costly and large facilities. Quantum optics offers a new radiometric source: parametric down-conversion (PDC), a nonlinear optical process, in which pairwise photon correlations enable absolute calibration of photodetectors. Since the emission rate crucially depends on the brightness of the electromagnetic field, quantum-mechanical fluctuations of the vacuum7 can be seen as a seed of spontaneous PDC, and their amplitude is a natural radiometric standard. Thus, they allow for the calibration of the spectral radiance of light sources by measuring the ratio between seeded and unseeded PDC. Here, we directly use the frequency spectrum of the electromagnetic vacuum to trigger spontaneous PDC and employ the generated light to infer the spectral response of a spectrometer over a broad spectral range. Then, we deduce the absolute quantum efficiency from the spectral shape of PDC in the high-gain regime, without relying on a seed or reference detector. Our results compare well with the ones obtained with a reference lamp, demonstrating a promising primary radiation standard.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Lemieux, Samuel ; Giese, Enno ; Fickler, Robert ; Chekhova, Maria V. ; Boyd, Robert W. |
| Art des Eintrags: | Bibliographie |
| Titel: | A primary radiation standard based on quantum nonlinear optics |
| Sprache: | Englisch |
| Publikationsjahr: | 4 März 2019 |
| Ort: | Basingstoke |
| Verlag: | Springer Nature |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nature Physics |
| Jahrgang/Volume einer Zeitschrift: | 15 |
| (Heft-)Nummer: | 6 |
| DOI: | 10.1038/s41567-019-0447-2 |
| URL / URN: | https://www.nature.com/articles/s41567-019-0447-2 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | The black body remains the most prominent source of light for absolute radiometry. Its main alternative, synchrotron radiation, requires costly and large facilities. Quantum optics offers a new radiometric source: parametric down-conversion (PDC), a nonlinear optical process, in which pairwise photon correlations enable absolute calibration of photodetectors. Since the emission rate crucially depends on the brightness of the electromagnetic field, quantum-mechanical fluctuations of the vacuum7 can be seen as a seed of spontaneous PDC, and their amplitude is a natural radiometric standard. Thus, they allow for the calibration of the spectral radiance of light sources by measuring the ratio between seeded and unseeded PDC. Here, we directly use the frequency spectrum of the electromagnetic vacuum to trigger spontaneous PDC and employ the generated light to infer the spectral response of a spectrometer over a broad spectral range. Then, we deduce the absolute quantum efficiency from the spectral shape of PDC in the high-gain regime, without relying on a seed or reference detector. Our results compare well with the ones obtained with a reference lamp, demonstrating a promising primary radiation standard. |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Angewandte Physik 05 Fachbereich Physik > Institut für Angewandte Physik > Theoretische Quantenoptik 05 Fachbereich Physik > Institut für Angewandte Physik > Theoretische Quantenphysik |
| Hinterlegungsdatum: | 13 Jul 2022 09:58 |
| Letzte Änderung: | 05 Sep 2024 08:02 |
| PPN: | 50326394X |
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| Suche nach Titel in: | TUfind oder in Google |
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A primary radiation standard based on quantum nonlinear optics. (deposited 22 Aug 2024 12:58)
- A primary radiation standard based on quantum nonlinear optics. (deposited 13 Jul 2022 09:58) [Gegenwärtig angezeigt]
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