Can TCOs Transform Cavity-QED?
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866916775112736768 |
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| author | Wang, Wance Fomra, Dhruv Agrawal, Amit Lezec, Henri J. Britton, Joseph W. |
| author_facet | Wang, Wance Fomra, Dhruv Agrawal, Amit Lezec, Henri J. Britton, Joseph W. |
| contents | Transparent conductive oxides (TCO) enable confinement of charge-sensitive ions and Rydberg atoms proximal to dielectric structures including waveguides and photon detectors. However, optical loss precludes the use of TCOs within high-finesse optical micro-resonators. Here we characterize a ZnO-based TCO that markedly reduces optical absorption. At 1650\text{ nm} we observe a 22,000 finesse in a Fabry-Pérot optical cavity coated with a 30\text{ nm} ZnO layer. This is a 5000 times reduction relative to indium tin oxide (ITO) at this wavelength. The same ZnO film exhibits 0.01\text{ \ensuremathΩ\ensuremath{\cdot}cm} surface resistivity at DC. We anticipate a step change in cavity-QED systems incorporating ultra-low loss TCOs like ZnO. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_02501 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Can TCOs Transform Cavity-QED? Wang, Wance Fomra, Dhruv Agrawal, Amit Lezec, Henri J. Britton, Joseph W. Quantum Physics Optics Transparent conductive oxides (TCO) enable confinement of charge-sensitive ions and Rydberg atoms proximal to dielectric structures including waveguides and photon detectors. However, optical loss precludes the use of TCOs within high-finesse optical micro-resonators. Here we characterize a ZnO-based TCO that markedly reduces optical absorption. At 1650\text{ nm} we observe a 22,000 finesse in a Fabry-Pérot optical cavity coated with a 30\text{ nm} ZnO layer. This is a 5000 times reduction relative to indium tin oxide (ITO) at this wavelength. The same ZnO film exhibits 0.01\text{ \ensuremathΩ\ensuremath{\cdot}cm} surface resistivity at DC. We anticipate a step change in cavity-QED systems incorporating ultra-low loss TCOs like ZnO. |
| title | Can TCOs Transform Cavity-QED? |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2506.02501 |