تقرير
Broadband tunable transmission non-reciprocity in thermal atoms dominated by two-photon transitions
| العنوان: | Broadband tunable transmission non-reciprocity in thermal atoms dominated by two-photon transitions |
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| المؤلفون: | Zhao, Hui-Min, Zheng, Di-Di, Zhang, Xiao-Jun, Wu, Jin-Hui |
| سنة النشر: | 2024 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Physics - Optics |
| الوصف: | We propose a scheme for realizing broadband and tunable transmission non-reciprocity by utilizing two-photon near-resonant transitions in thermal atoms as single-photon far-detuned transitions can be eliminated. Our basic idea is to largely reduce the Doppler broadenings on a pair of two-photon, probe and coupling, transitions and meanwhile make the only four-photon transition Doppler-free (velocity-dependent) for a forward (backward) probe field. One main advantage of this scheme lies in that the transmission non-reciprocity can be realized and manipulated in a frequency range typically exceeding $200$ MHz with isolation ratio above $20$ dB and insertion loss below $1.0$ dB by modulating an assistant field in frequency and amplitude. The intersecting angle between four applied fields also serves as an effective control knob to optimize the nonreciprocal transmission of a forward or backward probe field, e.g. in a much wider frequency range approaching $1.4$ GHz. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2402.06113 |
| رقم الأكسشن: | edsarx.2402.06113 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |